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ndcontrol cluster status 9.67.131.167¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
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>>-ndcontrol--executor--+-report-------------------------------+-> +-set--+-nfa--IP address-------------+-+ | +-maxclusters--size-----------+ | | +-maxports--size--------------+ | | +-fincount--fincount----------+ | | +-fintimeout--fintimeout------+ | | +-maxservers--size------------+ | | +-staletimeout--staletimeout--+ | | +-stickytime--time------------+ | | +-clientgateway--address------+ | | +-weightbound--weight---------+ | | +-porttype--type--------------+ | | +-wideportnumber--port--------+ | | '-sharedbandwidth--size-------' | +-start--------------------------------+ +-status-------------------------------+ '-stop---------------------------------' >--------------------------------------------------------------><
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ndcontrol executor status Ö´ÐгÌÐò״̬£º -------------- ·Çת·¢µØÖ· .......................... 9.67.131.151 ¿Í»§»úÍø¹ØµØÖ· ...................... 0.0.0.0 Fin ¼ÆÊý ............................ 4,000 Fin ³¬Ê± ............................ 60 ¹ãÓòÍø¶Ë¿ÚºÅ ........................ 2,001 ¹²Ïí´ø¿í£¨Ç§×Ö½Ú£© .................. 0 ÿ¸öȺ¼¯µÄȱʡ×î´ó¶Ë¿Ú .............. 8 ×î´óȺ¼¯Êý .......................... 100 ÿ¸ö¶Ë¿ÚµÄȱʡ×î´ó·þÎñÆ÷ ............ 32 ¶Ë¿ÚʧЧ³¬Ê± ........................ 300 ¶Ë¿ÚÕ³ÐÔʱ¼ä ........................ 0 ¶Ë¿ÚȨֵ·¶Î§ ........................ 20 ×î´óµÄȺ¼¯Êý ........................ 100
ndcontrol executor set nfa 130.40.52.167
ndcontrol executor set maxclusters 4096
ndcontrol executor start
ndcontrol executor stop
>>-ndcontrol--file--+-delete--file[.ext]-----------+----------->< +-appendload--file[.ext]-------+ +-report-----------------------+ +-save--file[.ext]--+--------+-+ | '-force--' | '-newload--file[.ext]----------'
ÎļþÀ©Õ¹Ãû£¨.ext£©¿ÉÒÔÊÇÏëÓõÄÈκÎÀ©Õ¹Ãû²¢¿ÉÒÔÊ¡ÂÔ¡£
¹«¹²°²×°Ä¿Â¼Â·¾¶ £ c:\Program Files\ibm\edge\nd\servers\configurations\component
±¾»ú°²×°Ä¿Â¼Â·¾¶ £ c:\Program Files\ibm\nd\servers\configurations\component
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ndcontrol file delete file3 Îļþ£¨file3£©±»É¾³ý¡£
ndcontrol file newload file1.sv Îļþ£¨file1.sv£©±»×°Èëµ½ Dispatcher¡£
ndcontrol file appendload file2.sv ÒѾ½«Îļþ£¨file2.sv£©Ìí¼Óµ½µ±Ç°ÅäÖò¢×°Èë¡£
ndcontrol file report Îļþ±¨¸æ£º file1.save file2.sv file3
ndcontrol file save file3 ÅäÖñ»±£´æÖÁÎļþ£¨file3£©¡£
>>-ndcontrol--help--+-help--------------+---------------------->< +-host--------------+ +-executor----------+ +-manager-----------+ +-advisor-----------+ +-cluster-----------+ +-port--------------+ +-rule--------------+ +-server------------+ +-subagent----------+ +-highavailability--+ +-file--------------+ +-set---------------+ +-status------------+ '-log---------------'
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ndcontrol help¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
HELP ÃüÁî²ÎÊý£º --------------------------------- Ó÷¨£º<°ïÖúÑ¡Ïî> ʾÀý£ºhelp cluster help £ ´òÓ¡ÍêÕûµÄ°ïÖúÎı¾ advisor £ advisor ÃüÁî°ïÖú cluster £ cluster ÃüÁî°ïÖú executor £ executor ÃüÁî°ïÖú file £ file ÃüÁî°ïÖú host £ host ÃüÁî°ïÖú log £ log ÃüÁî°ïÖú manager £ manager ÃüÁî°ïÖú metric £ metric ÃüÁî°ïÖú port £ port ÃüÁî°ïÖú rule £ rule ÃüÁî°ïÖú server £ server °ïÖúÃüÁî set £ set ÃüÁî°ïÖú status £ status ÃüÁî°ïÖú subagent £ subagent ÃüÁî°ïÖú highavailability £ highavailability ÃüÁî°ïÖú×¢ÒâÔÚ <> ÖеIJÎÊýÊDZäÁ¿¡£
fintimeout <cluster address>|all <time> -Change FIN timeout £¨Ê¹Óá®all¡¯À´¸ü¸ÄÈ«²¿Èº¼¯£©
>>-ndcontrol--highavailability--+-status----------------------------------------+-> +-backup--+-add--+-primary-+---+-auto---+---p-+-+ | | +-backup--+ '-manual-' | | | | '-both----' | | | '-delete----------------------------' | +-reach--+-add----+---address--mask-------------+ | '-delete-' | +-heartbeat--+-add--srcaddress--dstaddress--+---+ | '-delete--address--------------' | '-takeover--+---------+-------------------------' '-address-' >--------------------------------------------------------------><
´ËÍ⣬status ¹Ø¼ü×Ö·µ»Ø¹ØÓÚ¸÷ÖÖ ×Ó״̬µÄÐÅÏ¢£º
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ndcontrol highavailability status
Êä³ö£º
¸ß¿ÉÓÃÐÔ״̬£º ------------------------- ½ÇÉ« ........................ primary »Ö¸´²ßÂÔ .................... manual ״̬ ........................ Active ×Ó״̬ ...................... Synchronized Ö÷Ö÷»ú ...................... 9.67.131.151 ¶Ë¿Ú ........................ 12,345 Ê×ѡĿ±ê..................... 9.67.134.223 ¹¤×÷ƵÂÊ״̬£º ----------------- ¼ÆÊý ................. 1 ¿É´ïÐÔ״̬£º -------------------- ¼ÆÊý ................. 1
ndcontrol highavailability backup add primary auto 80
ndcontrol highavailability reach add 9.67.125.18
Ö÷ £ highavailability heartbeat add 9.67.111.3 9.67.186.8 ±¸·Ý £ highavailability heartbeat add 9.67.186.8 9.67.111.3
ndcontrol highavailability takeover
>>-ndcontrol--host:--remote_host-------------------------------><
ndcontrol host:remote_host
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>>-ndcontrol--log--+-start-------------------------+----------->< +-stop--------------------------+ +-set--+-retention-hours------+-+ | '---interval-seconds---' | '-status------------------------'
>>-ndcontrol--manager--+-interval--seconds-------------------+->< +-loglevel--level---------------------+ +-logsize--+-unlimited-+--------------+ | '-bytes-----' | +-quiesce--server--+------+-----------+ | '-now--' | +-reach set--+-interval-seconds-----+-+ | '-+-loglevel-level---+-' | | '---logsize-size---' | +-refresh--refresh cycle--------------+ +-report--+-----------------+---------+ | '-cluster+c2+...--' | +-restart--message--------------------+ +-sensitivity--weight-----------------+ +-smoothing--smoothing index----------+ +-start--+------------------------+---+ | '-log file--metric_port--' | +-status------------------------------+ +-stop--------------------------------+ +-unquiesce--server-------------------+ '-version-----------------------------'
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ndcontrol manager interval 5
ndcontrol manager loglevel 0
ndcontrol manager logsize 1000000
ndcontrol manager quiesce 130.40.52.153
ndcontrol manager refresh 3
ndcontrol manager report¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
---------------------------------- | HOST TABLE LIST | STATUS | ---------------------------------- | 9.67.129.221| ACTIVE| | 9.67.129.213| ACTIVE| | 9.67.134.223| ACTIVE| ---------------------------------- ----------------------------------------------------------------------------------- | 9.67.131.18| WEIGHT | ACTIVE % 48| NEW % 48 | PORT % 4 | SYSTEM % 0 | ----------------------------------------------------------------------------------- | PORT: 80 |NOW | NEW |WT | CONN |WT | CONN | WT | LOAD | WT | LOAD | ----------------------------------------------------------------------------------- | 9.67.129.221| 8 | 8 | 10 | 0| 10 | 0 | 7 | 29 | 0 | 0| | 9.67.134.223| 11 | 11 | 10 | 0| 10 | 0 | 12 | 17 | 0 | 0| ----------------------------------------------------------------------------------- | PORT TOTALS:| 19 | 19 | | 0| | 0 | | 46 | | 0| ----------------------------------------------------------------------------------- ----------------------------------------------------------------------------------- | 9.67.131.18| WEIGHT | ACTIVE % 48| NEW % 48 | PORT % 4 | SYSTEM % 0 | ----------------------------------------------------------------------------------- | PORT: 23 |NOW | NEW |WT | CONN |WT | CONN | WT | LOAD | WT | LOAD | ----------------------------------------------------------------------------------- | 9.67.129.213| 10 | 10 | 10 | 0| 10 | 0 | 10 | 71 | 0 | 0| | 9.67.134.223| 0 | 0 | 10 | 0| 10 | 0 |-9999 | -1 | 0 | 0| ----------------------------------------------------------------------------------- | PORT TOTALS:| 10 | 10 | | 0| | 0 | | 70 | | 0| ----------------------------------------------------------------------------------- -------------------------------- | ADVISOR | PORT | TIMEOUT | -------------------------------- | reach | 0 | unlimited | | http | 80 | unlimited | | ftp | 21 | unlimited | --------------------------------
ndcontrol manager restart Restarting the manager to update code¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
320-14:04:54 Restarting the manager to update code
ndcontrol manager sensitivity 10
ndcontrol manager smoothing 2.0
ndcontrol manager start ndmgr.log
ndcontrol manager status¸ÃÃüÁî²úÉúÀàËÆÓÚÒÔÏÂʾÀýµÄÊä³ö£º
¹ÜÀíÆ÷״̬£º ============= ¶ÈÁ¿¶Ë¿Ú................................... 10,004 ¹ÜÀíÆ÷ÈÕÖ¾ÎļþÃû........................... manager.log ¹ÜÀíÆ÷ÈÕÖ¾¼¶±ð............................. 1 ×î´ó¹ÜÀíÆ÷ÈÕÖ¾´óС£¨×Ö½Ú£©................. unlimited ÁéÃô¶È¼¶±ð................................. 0.05 ƽ»¬Ö¸Êý................................... 1.5 ¸üмä¸ô£¨Ã룩............................. 2 ȨֵˢÐÂÖÜÆÚ............................... 2 µ½´ïÈÕÖ¾¼¶±ð............................... 1 ×î´óµ½´ïÈÕÖ¾´óС£¨×Ö½Ú£©................... unlimited µ½´ï¸üмä¸ô£¨Ã룩......................... 7
ndcontrol manager stop
ndcontrol manager quiesce 130.40.52.153 now
ndcontrol manager quiesce 130.40.52.153
ndcontrol manager unquiesce 130.40.52.153
ndcontrol manager version
>>-ndcontrol--metric--+-add--cluster+c2+...+cN:metric+metric1+...+metricN---------------+-> +-remove--cluster+c2+...+cN:metric+metric1+...+metricN------------+ +-proportions--cluster+c2+...+cN proportion1 prop2 prop3...propN--+ '-status--cluster+c2+...+cN:metric+metric1+...+metricN------------' >--------------------------------------------------------------><
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sscontrol metric add site1:metric1
sscontrol metric proportions site1 0 100
sscontrol metric status site1:metric1¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¶ÈÁ¿×´Ì¬£º ------------ Ⱥ¼¯ .......................... 10.10.10.20 ¶ÈÁ¿Ãû³Æ ...................... metric1 ¶ÈÁ¿±ÈÀý ...................... 50 ·þÎñÆ÷ .................... plm3 ¶ÈÁ¿Êý¾Ý .................. -1
>>-ndcontrol--port--+-add--cluster:port--+-----------------------+-+-> | +-crossport--otherport--+ | | +-maxservers--size------+ | | +-stickymask--value-----+ | | +-stickytime--time------+ | | +-method--type----------+ | | +-staletimeout--value---+ | | +-weightbound--weight---+ | | +-porttype--type--------+ | | '-protocol--type--------' | +-set--cluster:port--+-crossport--otherport--+-+ | +-maxservers--size------+ | | +-stickymask--value-----+ | | +-stickytime--time------+ | | +-staletimeout--value---+ | | +-weightbound--weight---+ | | +-porttype--type--------+ | | '-maxhalfopen--value----' | +-remove--cluster:port-------------------------+ +-report--cluster:port-------------------------+ +-status--cluster:port-------------------------+ '-halfopenaddressreport--cluster:port----------' >--------------------------------------------------------------><
ÔÚ Windows ÉÏ£¬ ÕâÒâζ×ÅËü±ØÐëÔÚ Windows ÁªÍøÉèÖÃÖС£cluster configure ÃüÁî²¢²»¹»£¬ÒòΪËü½öÄ£Äâ IP ±ðÃûÅб𣬶ø´úÀíÎÞ·¨°ó¶¨µ½´Ëα IP¡£¶ÔÓÚËùÓÐÆäËü²Ù×÷ϵͳ£¬cluster configure ÃüÁîºÜºÏÊÊ£¬ÒòΪËüʹÓà ifconfig À´¸ø IP ½¨Á¢±ðÃû¡£
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ndcontrol port add 130.40.52.153:80+23
ndcontrol port set 130.40.52.153:0
mlcontrol port add 9.37.60.91:20 protocol pop3
ndcontrol port set 130.40.52.153:80 weightbound 10
ndcontrol port set 130.40.52.153:80+23 stickytime 60
ndcontrol port set 130.40.52.153:80 crossport 23
ndcontrol port remove 130.40.52.153:23
ndcontrol port status 9.67.131.153:80¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¶Ë¿Ú״̬£º ------------ ¶Ë¿ÚºÅ ......................... 80 Ⱥ¼¯µØÖ· ....................... 9.67.131.153 ·þÎñÆ÷ÊýÄ¿ ..................... 2 ʧЧ³¬Ê± ....................... 30 Ȩֵ·¶Î§ ....................... 20 ×î´ó·þÎñÆ÷ÊýÄ¿ ................. 32 Õ³ÐÔʱ¼ä ....................... 0 ¶Ë¿ÚÀàÐÍ ....................... tcp/udp ת·¢·½·¨ ....................... »ùÓÚ MAC ת·¢ Õ³ÐÔÑÚÂëλ ..................... 32 ½»²æ¶Ë¿ÚÇ×ÔµÐÔ ................. 80 ×î´ó°ë¿ªÁ¬½Ó ................... 0
ndcontrol port halfopenaddressreport 9.67.127.121:80¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
³É¹¦´´½¨°ë¿ªÁ¬½Ó±¨¸æ£º ------------ Half Open Address Report for cluster:port = 9.67.127.121:80 ±¨¸æ°ë¿ªÁ¬½Ó×ܼƵØÖ· ................................ 0 ±¨¸æ°ë¿ªÁ¬½Ó×ܼÆÊýÁ¿ .................................. 0 ±¨¸æ°ë¿ªÁ¬½ÓµÄ×î´óÊý .................................. 0 ±¨¸æ°ë¿ªÁ¬½ÓµÄƽ¾ùÊý .................................. 0 ±¨¸æÆ½¾ù°ë¿ªÁ¬½Óʱ¼ä£¨Ã룩 ............................ 0 ½ÓÊÕ×ܼư뿪Á¬½Ó ...................................... 0
>>-ndcontrol--rule--+-add--cluster:port:rule--type--type--| opts |--+-> +-dropserver--cluster:port:rule--server---------+ +-remove--cluster:port:rule---------------------+ +-report--cluster:port:rule---------------------+ +-set--cluster:port:rule--| opts |--------------+ +-status--cluster:port:rule---------------------+ '-useserver--cluster:port:rule--server+s2+...---' >-------------------------------------------------------------->< opts |---+----------------------------------+------------------------| +-beginrange--low--endrange--high--+ +-priority--level------------------+ +-pattern=--pattern----------------+ +-tos--value-----------------------+ +-stickytime--time-----------------+ +-affinity--affinity_type----------+ +-cookiename--value----------------+ +-evaluate--level------------------+ '-sharelevel--level----------------'
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ndcontrol rule add 9.37.67.100:80:trule type true priority 100
ndcontrol rule add 9.37.131.153:80:ni type ip b 9.0.0.0 e 9.255.255.255
ndcontrol rule add cluster1:80:timerule type time beginrange 11 endrange 14 ndcontrol rule useserver cluster1:80:timerule server05
ndcontrol rule add 9.67.131.153:80:tosrule type service tos 0xx1001x
ndcontrol rule add 9.67.131.153:80:rbwrule type reservedbandwidth beginrange 0 endrange 100 evaluate rule
ndcontrol cluster set 9.67.131.153 sharedbandwidth 200 ndcontrol rule add 9.67.131.153:80:shbwrule type sharedbandwidth sharelevel cluster
>>-ndcontrol--server--+-add--cluster :port:server--+--------------------------+-+-> | +-address--address---------+ | | +-collocated--value--------+ | | +-sticky--value------------+ | | +-weight--value------------+ | | +-fixedweight--value-------+ | | +-mapport--portvalue-------+ | | +-router--addr-------------+ | | +-cookievalue--value-------+ | | +-returnaddress--addr------+ | | +-advisorrequest--string---+ | | '-advisorresponse--string--' | +-set--cluster :port:server--+-collocated--value--------+-+ | +-sticky--value------------+ | | +-weight--value------------+ | | +-fixedweight--value-------+ | | +-router--addr-------------+ | | +-cookievalue--value-------+ | | +-advisorrequest--string---+ | | '-advisorresponse--string--' | +-down--cluster :port:server------------------------------+ +-remove--cluster :port:server----------------------------+ +-report--cluster :port:server----------------------------+ +-up--cluster :port:server--------------------------------+ '-status--cluster :port:server----------------------------' >--------------------------------------------------------------><
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ndcontrol server add 130.40.52.153:80:27.65.89.42
ndcontrol server set 130.40.52.153:80:27.65.89.42 sticky no
ndcontrol server down 130.40.52.153:80:27.65.89.42
ndcontrol server remove ::27.65.89.42
ndcontrol server set 130.40.52.153:80:27.65.89.42 collocated yes
ndcontrol server set 130.40.52.153:80:27.65.89.42 weight 10
ndcontrol server up 130.40.52.153:80:27.65.89.42
ndcontrol server add 130.40.52.153:80:130.60.70.1 router 130.140.150.0
ndcontrol server set 130.40.52.153:80:27.65.89.42 advisorrequest "\"HEAD / HTTP/2.0\""
>>-ndcontrol--set--+-loglevel--level--------+------------------>< +-logsize--+-unlimited-+-+ | '-size------' | '-logstatus--------------'
>>-ndcontrol--status-------------------------------------------><
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ndcontrol status¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
Ö´ÐгÌÐòÒѾÆô¶¯¡£¹ÜÀíÆ÷ÒѾÆô¶¯¡£ -------------------------------- | ADVISOR | PORT | TIMEOUT | -------------------------------- | reach | 0 | unlimited | | http | 80 | unlimited | | ftp | 21 | unlimited | --------------------------------
>>-ndcontrol--subagent--+-loglevel--level---------------------+->< +-logsize--+-bytes-----+--------------+ | '-unlimited-' | +-report------------------------------+ +-start--+--------------------------+-+ | '-community_name--logfile--' | +-status------------------------------+ +-stop--------------------------------+ '-version-----------------------------'
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ndcontrol subagent start bigguy bigguy.log
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Method=GET URI=/path/webpage.htm Version=/HTTP/1.1 Host=www.company.com Connection=Keep-Alive Referer=http://www.company.com/path/parentwebpage.htm
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rule add 10.1.203.4:80:cbr_prod_rule_ek type content pattern client=181.0.153.222&uri=http://10.1.203.4/nipoek/*
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cbrcontrol rule add 10.1.203.4:80:cbr_prod_rule_ek type content pattern "client=181.0.153.222&uri=http://10.1.203.4/nipoek/*"
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>>rule add cluster1:80:servlets type content pattern uri=*/servlet/*priority 1 >>rule uses cluster1:80:servlets server1+server2
>>rule add cluster1:80:notes type content pattern uri=*.nsf* priority 2 >>rule uses cluster1:80:notes server3+server4
>>rule add cluster1:80:regular type true priority 3 >>rule uses cluster1:80:regular server5+server6
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>>rule add cluster1:80:div1 type content pattern uri=/software/* priority 1 >>rule uses cluster1:80:div1 server1+server2
>>rule add cluster1:80:div2 type content pattern uri=/hardware/* priority 2 >>rule uses cluster1:80:div2 server3+server4
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>>rule add cluster1:80:pcs type content pattern (uri=/pcs/*)&(uri=*/software/*) >>rule uses cluster 1:80:pcs server1
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>>rule add cluster1:80:pc1 type content pattern uri=/pcs/* >>rule uses cluster1:80:pc1 server2
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>>rule add cluster1:80:pc2 type content pattern uri=/*/pcs/* >>rule uses cluster1:80:pc2 server3
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>>rule add cluster1:80:sorry type true priority 100 >>rule uses cluster1:80:sorry server5
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>>-sscontrol--advisor--+-connecttimeout--name--+-port------+---seconds-------+-> | '-sitename:port-' | +-interval--name--+-port------+---seconds-------------+ | '-sitename:port-' | +-list------------------------------------------------+ +-loglevel--name--+-port------+---level---------------+ | '-sitename:port-' | +-logsize--name--+-port------+---+-size | unlimited-+-+ | '-sitename:port-' '-bytes------------' | +-receivetimeout--name--+-port------+---seconds-------+ | '-sitename:port-' | +-report--name--+-port------+-------------------------+ | '-sitename:port-' | +-start--name--+-port------+---+-----------+----------+ | '-sitename:port-' '-log file--' | +-status--name--+-port------+-------------------------+ | '-sitename:port-' | +-stop--name--+-port------+---------------------------+ | '-sitename:port-' | +-timeout--name--+-port------+------------------------+ | '-sitename:port-' | '-version--name--+-port------+---seconds--------------' '-sitename:port-' >--------------------------------------------------------------><
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db2 | private | 50000 |
ftp | FTP | 21 |
http | HTTP | 80 |
imap | IMAP | 143 |
nntp | NNTP | 119 |
PING | PING | 0 |
pop3 | POP3 | 110 |
smtp | SMTP | 25 |
ssl | SSL | 443 |
telnet | Telnet | 23 |
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sscontrol advisor connecttimeout http 80 30
sscontrol advisor interval ftp 21 6
sscontrol advisor list¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
--------------------------------------- | ADVISOR | SITENAME:PORT | TIMEOUT | --------------------------------------- | http | 80 | unlimited | | ftp | 21 | unlimited | ---------------------------------------
sscontrol advisor loglevel http mysite:80 0
sscontrol advisor logsize ftp mysite:21 5000
sscontrol advisor receivetimeout http 80 60
sscontrol advisor report ftp 21¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¹ËÎʳÌÐò±¨¸æ£º --------------- ¹ËÎʳÌÐòÃû³Æ ............. http ¶Ë¿ÚºÅ ................... 80 Õ¾µãÃû ................... mySite ·þÎñÆ÷µØÖ· ............... 9.67.129.230 ¸ºÔØ ..................... 8
sscontrol advisor start ftp 21 ftpadv.log
sscontrol advisor status http 80¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¹ËÎʳÌÐò״̬£º --------------- ¼ä¸ô£¨Ã룩 .................... 7 ³¬Ê±£¨ÃëÊý£© .................. Unlimited Á¬½Ó³¬Ê±£¨ÃëÊý£© .............. 21 ½ÓÊÕ³¬Ê±£¨ÃëÊý£© .............. 21 ¹ËÎʳÌÐòÈÕÖ¾ÎļþÃû ............ Http_80.log ÈÕÖ¾¼¶±ð ...................... 1 ×î´óÈÕÖ¾´óС£¨×Ö½ÚÊý£© ........ Unlimited
sscontrol advisor stop http 80
sscontrol advisor timeout ftp 21 5
sscontrol advisor version ssl 443
>>-sscontrol--file--+-delete--filename.ext-----------+--------->< +-appendload--filename.ext-------+ +-report-------------------------+ +-save--filename.ext--+--------+-+ | '-force--' | '-newload--filename.ext----------'
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sscontrol file delete file3 Îļþ£¨file3£©±»É¾³ý¡£
sscontrol file newload file1.sv Îļþ£¨file1.sv£©×°Èëµ½ Dispatcher¡£
sscontrol file appendload file2.sv ÒѾ½«Îļþ£¨file2.sv£©Ìí¼Óµ½µ±Ç°ÅäÖò¢×°Èë¡£
sscontrol file report Îļþ±¨¸æ£º file1.save file2.sv file3
sscontrol file save file3 ÅäÖñ£´æÖÁÎļþ£¨file3£©¡£
>>-sscontrol--help--+-advisor-----+---------------------------->< +-file--------+ +-help--------+ +-host--------+ +-manager-----+ +-metric------+ +-nameserver--+ +-rule--------+ +-server------+ +-set---------+ +-sitename----+ '-status------'
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sscontrol help¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
HELP ÃüÁî²ÎÊý£º --------------------------------- Ó÷¨£º help <°ïÖúÑ¡Ïî> ʾÀý£ºhelp name help £ ÏÔʾÍêÕûµÄ°ïÖú advisor £ advisor ÃüÁîµÄ°ïÖú file £ file ÃüÁîµÄ°ïÖú host £ host ÃüÁîµÄ°ïÖú manager £ manager ÃüÁîµÄ°ïÖú metric £ metric ÃüÁîµÄ°ïÖú sitename £ sitename ÃüÁîµÄ°ïÖú nameserver £ nameserver ÃüÁîµÄ°ïÖú rule £ rule ÃüÁîµÄ°ïÖú server £ server ÃüÁîµÄ°ïÖú set £ set ÃüÁîµÄ°ïÖú status £ status ÃüÁîµÄ°ïÖú< > ÄڵIJÎÊýÊDZäÁ¿¡£
logsize <number of bytes | unlimited> £ ÉèÖÃÔÚÈÕÖ¾ÎļþÖмǼµÄ×î´ó×Ö½ÚÊý
>>-sscontrol--manager--+-interval--seconds-------------------------------+-> +-loglevel--level---------------------------------+ +-logsize--+-size | unlimited-+-------------------+ | '-bytes------------' | +-reach set--+-interval-seconds-----------------+-+ | '-+-loglevel-level---------------+-' | | '---logsize-size | unlimited---' | +-report--+sn2+...+snN----------------------------+ +-restart--message--------------------------------+ +-sensitivity--weight-----------------------------+ +-smoothing--smoothing index----------------------+ +-start--+-----------------------+----------------+ | '-logfile--metric_port--' | +-status------------------------------------------+ +-stop--------------------------------------------+ '-version-----------------------------------------' >--------------------------------------------------------------><
ȱʡÎļþ°²×°ÔÚ logs Ŀ¼ÖС£Çë²ÎÔĸ½Â¼ F, Ñù±¾ÅäÖÃÎļþ¡£Òª¸ü¸ÄÈÕÖ¾ÎļþËùÔÚµÄĿ¼£¬Çë²ÎÔĸü¸ÄÈÕÖ¾Îļþ·¾¶¡£
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sscontrol manager interval 5
sscontrol manager loglevel 0
sscontrol manager logsize 1000000
sscontrol manager report¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
---------------------------------- | ·þÎñÆ÷ | ״̬ | ---------------------------------- | 9.67.129.221| ACTIVE| | 9.67.129.213| ACTIVE| | 9.67.134.223| ACTIVE| ---------------------------------- -------------------------- | ¹ÜÀíÆ÷±¨¸æÍ¼×¢ | -------------------------- | CPU | CPU ¸ºÔØ | | MEM | ÄÚ´æ¸ºÔØ | | SYS | ϵͳ¶ÈÁ¿ | | NOW | µ±Ç°È¨Öµ | | NEW | еÄȨֵ | | WT | Ȩֵ | -------------------------- ------------------------------------------------------------------------ | mySite | WEIGHT | CPU 49% | MEM 50% | PORT 1% | SYS 0% | ------------------------------------------------------------------------ | |NOW NEW | WT LOAD | WT LOAD | WT LOAD | WT LOAD | ------------------------------------------------------------------------ | 9.37.56.180 | 10 10 |-99 -1|-99 -1|-99 -1| 0 0| ------------------------------------------------------------------------ | TOTALS:| 10 10 | -1| -1| -1| 0| ------------------------------------------------------------------------ ----------------------------------------- | ADVISOR | SITENAME:PORT | TIMEOUT | ----------------------------------------- | http | 80 | unlimited | -----------------------------------------
sscontrol manager restart Restarting the manager to update code¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
320-14:04:54 ÖØÐÂÆô¶¯¹ÜÀíÆ÷ÒÔ¸üдúÂë
sscontrol manager sensitivity 10
sscontrol manager smoothing 2.0
sscontrol manager start ndmgr.log
sscontrol manager status¸ÃÃüÁî²úÉúÀàËÆÓÚÒÔÏÂʾÀýµÄÊä³ö¡£
¹ÜÀíÆ÷״̬£º ============= ¶ÈÁ¿¶Ë¿Ú...................................... 10004 ¹ÜÀíÆ÷ÈÕÖ¾ÎļþÃû.............................. manager.log ¹ÜÀíÆ÷ÈÕÖ¾¼¶±ð................................ 1 ×î´ó¹ÜÀíÆ÷ÈÕÖ¾´óС£¨×Ö½ÚÊý£©.................. unlimited ÁéÃô¶È¼¶±ð.................................... 5 ƽ»¬Ö¸Êý...................................... 1.5 ¸üмä¸ô£¨ÃëÊý£©.............................. 2 ȨֵˢÐÂÖÜÆÚ.................................. 2 µ½´ïÈÕÖ¾¼¶±ð.................................. 1 ×î´óµ½´ïÈÕÖ¾´óС£¨×Ö½ÚÊý£©.................... unlimited µ½´ï¸üмä¸ô£¨ÃëÊý£©.......................... 7
sscontrol manager stop
sscontrol manager version
>>-sscontrol--metric--+-add--sitename+sn2+...+snN:metric+metric1+...+metricN---------------+-> +-remove--sitename+sn2+...+snN:metric+metric1+...+metricN------------+ +-proportions--sitename+sn2+...+snN:proportion1 prop2 prop3...propN--+ '-status--sitename+sn2+...+snN metric+metric1+...+metricN------------' >--------------------------------------------------------------><
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sscontrol metric add site1:metric1
sscontrol metric proportions site1 0 100
sscontrol metric status site1:metric1¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¶ÈÁ¿×´Ì¬£º ------------ Õ¾µãÃû ....................... site1 ¶ÈÁ¿Ãû³Æ ...................... metric1 ¶ÈÁ¿±ÈÀý ...................... 50 ·þÎñÆ÷ ......... 9.37.56.100 ¶ÈÁ¿Êý¾Ý ....... -1
>>-sscontrol--nameserver--+-start--+-----------------------+-+->< | '-bindaddress--address--' | +-stop-----------------------------+ '-status---------------------------'
>>-sscontrol--rule--+-add--sitename+sn2+...+snN:rule+r2+...+rN--type--value--| value |--| opts |--+-> +-dropserver--sitename+sn2+...+snN:rule+r2+...+rN--server+s2+...+snN----------+ +-remove--sitename+sn2+...+snN:rule+r2+...+rN---------------------------------+ +-set--sitename+sn2+...+snN:rule+r2+...+rN--| value |--| opts |---------------+ +-status--sitename+sn2+...+snN:rule+r2+...+rN---------------------------------+ '-useserver--sitename+sn2+...+snN:rule+r2+...+rN--server+s2+...+snN-----------' >-------------------------------------------------------------->< opts |---+----------------------------------+------------------------| +-beginrange--low--endrange--high--+ +-priority--value------------------+ '-metricname--value----------------'
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sscontrol rule add sitename:rulename type true priority 100
sscontrol rule add sitename:rulename type ip b 9.0.0.0 e 9.255.255.255
sscontrol rule add sitename:rulename type time beginrange 11 endrange 14 sscontrol rule useserver sitename:rulename server05
>>-sscontrol--server--+-add--sitename+sn2+...+snN:server+s2+...+sN--+-------------------------+-+-> | +-metricaddress--address--+ | | '-weight--value-----------' | +-down--sitename+sn2+...+snN:server+s2+...+sN-----------------------------+ +-remove--sitename+sn2+...+snN:server+s2+...+sN---------------------------+ +-set--sitename+sn2+...+snN:server+s2+...+sN--+-------------------------+-+ | +-metricaddress--address--+ | | '-weight--value-----------' | +-status--sitename+sn2+...+snN:server+s2+...+sN---------------------------+ '-up--sitename+sn2+...+snN:server+s2+...+sN-------------------------------' >--------------------------------------------------------------><
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sscontrol server add site1:27.65.89.42
sscontrol server down site1:27.65.89.42
sscontrol server remove :27.65.89.42
sscontrol server up site1:27.65.89.42
>>-sscontrol--set--+-loglevel--level--------+------------------>< +-logsize--+-unlimited-+-+ | '-size------' | '-logstatus--------------'
>>-sscontrol--sitename--+-add--+sn2+...+snN--+-----------------------------------------+---------+-> | +-cachelife--value------------------------+ | | +-networkproximity--yes | no--------------+ | | +-proportions--cpu--memory--port--metric--+ | | +-proximitypercentage--value--------------+ | | +-stickytime--time------------------------+ | | +-ttl--time-------------------------------+ | | +-waitforallresponses--yes | no-----------+ | | '-weightbound--weight---------------------' | +-remove--sitename+sn2+...+snN-------------------------------------------+ +-set--sitename+sn2+...+snN--+-----------------------------------------+-+ | +-cachelife--value------------------------+ | | +-networkproximity--yes | no--------------+ | | +-proportions--cpu--memory--port--metric--+ | | +-proximitypercentage--value--------------+ | | +-stickytime--time------------------------+ | | +-ttl--time-------------------------------+ | | +-waitforallresponses--yes | no-----------+ | | '-weightbound--weight---------------------' | '-status--sitename+sn2+...+snN-------------------------------------------' >--------------------------------------------------------------><
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sscontrol sitename add 130.40.52.153
sscontrol sitename set mySite networkproximity yes
sscontrol sitename set mySite cachelife 1900000
sscontrol sitename set mySite proximitypercentage 45
sscontrol sitename set mySite waitforallresponses no
sscontrol sitename set mySite ttl 7
sscontrol sitename set mySite proportions 50 48 1 1
sscontrol sitename remove 130.40.52.153
sscontrol sitename status mySite¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
Õ¾µãÃû״̬£º --------------- Õ¾µãÃû ............................. mySite Ȩֵ·¶Î§ ........................... 20 TTL ................................ 5 Õ³ÐÔʱ¼ä ........................... 0 ·þÎñÆ÷Êý ........................... 1 CpuLoad ¸ø¶¨±ÈÀý ................... 49 MemLoad ¸ø¶¨±ÈÀý ................... 50 ¶Ë¿Ú¸ø¶¨±ÈÀý ........................ 1 ϵͳ¶ÈÁ¿¸ø¶¨±ÈÀý .................... 0 ¹ËÎʳÌÐòÔËÐÐ¶Ë¿Ú .................... 80 ʹÓýӽü ............................ N
>>-sscontrol--status-------------------------------------------><
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sscontrol status¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
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±¾¸½Â¼ÃèÊöÈçºÎʹÓÃÏÂÁÐ Cisco CSS ½»»»»úµÄ×ÉѯÆ÷ lbccontrol ÃüÁ
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>>-lbccontrol--advisor--+-connecttimeout--name--+-port-----+---timeoutseconds---+-> | '-cluster:port-' | +-interval--name--+-port-----+---seconds----------------+ | '-cluster:port-' | +-list--------------------------------------------------+ +-loglevel--name--+-port-----+---level------------------+ | '-cluster:port-' | +-logsize--+-port-----+---port--+-size | unlimited-+----+ | '-cluster:port-' '-bytes------------' | +-receivetimeout--name--+-port-----+---timeoutseconds---+ | '-cluster:port-' | +-report--name--+-port-----+----------------------------+ | '-cluster:port-' | +-start--name--+-port-----+---+-----------+-------------+ | '-cluster:port-' '-log file--' | +-status--name--+-port-----+----------------------------+ | '-cluster:port-' | +-stop--name--+-port-----+------------------------------+ | '-cluster:port-' | +-timeout--name--+-port-----+---+-seconds | unlimited-+-+ | '-cluster:port-' '-seconds-------------' | '-version--name--+-port-----+---------------------------' '-cluster:port-' >--------------------------------------------------------------><
¹ËÎʳÌÐòÃû³Æ | ÐÒé | ¶Ë¿Ú |
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connect | ICMP | 12345 |
db2 | רÓà | 50000 |
ftp | FTP | 21 |
http | HTTP | 80 |
ibmproxy | HTTP£¨Í¨¹ý¸ßËÙ»º´æ´úÀí£© | 80 |
imap | IMAP | 143 |
nntp | NNTP | 119 |
ping | PING | 0 |
pop3 | POP3 | 110 |
smtp | SMTP | 25 |
ssl | SSL | 443 |
telnet | Telnet | 23 |
WLM | רÓà | 10007 |
ȱʡÎļþΪ advisorname_port.log£¬ÀýÈ磬http_80.log¡£Òª¸ü¸Ä±£ÁôÈÕÖ¾ÎļþµÄĿ¼£¬Çë²ÎÔĸü¸ÄÈÕÖ¾Îļþ·¾¶¡£
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lbccontrol advisor connecttimeout http 80 30
lbccontrol advisor interval ftp 21 6
lbccontrol advisor list¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
------------------------------ | ADVISOR | PORT | TIMEOUT | ------------------------------ | http | 80 | unlimited | | ftp | 21 | unlimited | ------------------------------
lbccontrol advisor loglevel http 80 0
lbccontrol advisor logsize ftp 21 5000
lbccontrol advisor receivetimeout http 80 60
lbccontrol advisor report ftp 21¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¹ËÎʳÌÐò±¨¸æ£º --------------- ¹ËÎʳÌÐòÃû³Æ ............. Ftp ¶Ë¿ÚºÅ ................... 21 Ⱥ¼¯µØÖ· ................. 9.67.131.18 ·þÎñÆ÷µØÖ· ............... 9.67.129.230 ¸ºÔØ ..................... 8 Ⱥ¼¯µØÖ· ................. 9.67.131.18 ·þÎñÆ÷µØÖ· ............... 9.67.131.215 ¸ºÔØ ..................... -1
lbccontrol advisor start ftp 21 ftpadv.log
lbccontrol advisor status http 80¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¹ËÎʳÌÐò״̬£º --------------- ¼ä¸ô£¨Ã룩 ................... 15 ³¬Ê±£¨Ã룩 ................... Unlimited Á¬½Ó³¬Ê±£¨Ã룩 ................ 21 ½ÓÊÕ³¬Ê±£¨Ã룩 ................ 21 ¹ËÎʳÌÐòÈÕÖ¾ÎļþÃû ............ Http_80.log ÈÕÖ¾¼¶±ð ...................... 1 ×î´óÈÕÖ¾´óС£¨×Ö½Ú£© .......... Unlimited
lbccontrol advisor stop http 80
lbccontrol advisor timeout ftp 21 5
lbccontrol advisor version ssl 443
>>-lbccontrol--cluster--+-add--cluster+c2+...--+-proportions--active--new--port--system--+-+-> | '-weightbound--weight---------------------' | +-set--cluster+c2+...--+-proportions--active--new--port--system--+-+ | '-weightbound--weight---------------------' | +-remove--cluster--------------------------------------------------+ '-status--cluster--------------------------------------------------' >--------------------------------------------------------------><
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lbccontrol cluster add 130.40.52.153
lbccontrol cluster remove 130.40.52.153
lbccontrol cluster proportions 60 35 5 0
lbccontrol cluster status 9.67.131.167´ËÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö
Ⱥ¼¯×´Ì¬£º --------------- µØÖ· .................................... 9.67.131.167 Ä¿±ê¶Ë¿ÚÊý .............................. 3 ȱʡ¶Ë¿ÚȨֵ·¶Î§ ........................ 10 ¸øÓè»î¶¯Á¬½ÓµÄ±ÈÀý ...................... 49 ¸øÓèн¨Á¬½ÓµÄ±ÈÀý ...................... 49 ¸øÓèÌØ¶¨¶Ë¿ÚµÄ±ÈÀý ...................... 2 ¸øÓèϵͳ¶ÈÁ¿µÄ±ÈÀý ...................... 0
>>-lbccontrol--executor--+-set--+-address--value--------+-+---->< | +-communityname--value--+ | | +-timeout--value--------+ | | '-retries--value--------' | '-status-------------------------'
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lbccontrol executor status Ö´ÐгÌÐò״̬£º ---------------- µØÖ· ................................ 9.67.131.151 ¹«ÓÃÃû .............................. public ³¬Ê±Öµ .............................. 3 ÖØÊÔ´ÎÊýÖµ .......................... 2
lbccontrol executor set address 130.40.52.167
>>-lbccontrol--file--+-delete--filename.ext--------------+----->< +-appendload--filename.ext----------+ +-report----------------------------+ +-save--filename.ext--force---------+ '-newload--filename.ext--+--------+-' '-force--'
ÎļþÀ©Õ¹Ãû£¨.ext£©¿ÉÒÔÊÇÈκÎÄúÑ¡ÔñµÄÃû³Æ²¢ÇÒÊÇ¿ÉÑ¡µÄ
¹«¹²°²×°Ä¿Â¼Â·¾¶ £ c:\Program Files\ibm\edge\nd\servers\configurations\component
±¾»ú°²×°Ä¿Â¼Â·¾¶ £ c:\Program Files\ibm\nd\servers\configurations\component
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lbccontrol file delete file3 Îļþ£¨file3£©±»É¾³ý¡£
lbccontrol file newload file1.sv Îļþ£¨file1.sv£©×°Èëµ½ Dispatcher¡£
lbccontrol file appendload file2.sv Îļþ£¨file2.sv£©¸½¼Óµ½µ±Ç°ÅäÖò¢×°Èë¡£
lbccontrol file report Îļþ±¨¸æ: file1.save file2.sv file3
lbccontrol file save file3 ÅäÖñ£´æµ½Îļþ£¨file3£©¡£
>>-lbccontrol--help--+-advisor---+----------------------------->< +-cluster---+ +-executor--+ +-file------+ +-help------+ +-host------+ +-log-------+ +-manager---+ +-metric----+ +-port------+ +-server----+ +-set-------+ '-status----'
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lbccontrol help¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
HELP ÃüÁî²ÎÊý£º --------------------------------- Ó÷¨£ºhelp <°ïÖúÑ¡Ïî> ʾÀý£ºhelp cluster executor £ executor ÃüÁîµÄ°ïÖú cluster £ cluster ÃüÁîµÄ°ïÖú port £ port ÃüÁîµÄ°ïÖú server £ server ÃüÁîµÄ°ïÖú manager £ manager ÃüÁîµÄ°ïÖú metric £ metric ÃüÁîµÄ°ïÖú advisor £ advisor ÃüÁîµÄ°ïÖú file £ file ÃüÁîµÄ°ïÖú host £ host ÃüÁîµÄ°ïÖú log £ log ÃüÁîµÄ°ïÖú set £ set ÃüÁîµÄ°ïÖú status £ status ÃüÁîµÄ°ïÖú help £ ´òÓ¡ÍêÕûµÄ°ïÖúÎı¾< > ÄڵIJÎÊýÊDZäÁ¿¡£
>>-lbccontrol--host:--remote_host------------------------------><
lbccontrol host:remote_host
ÔÚÃüÁîÌáʾÏ·¢³ö´ËÃüÁȻºóÊäÈëÈκÎÄúÏ£Íû·¢µ½Ô¶³Ì Cisco ×ÉѯÆ÷»úÆ÷ÉϵÄÓÐЧ lbccontrol ÃüÁî¡£
>>-lbccontrol--log--+-start-----------------------+------------>< +-stop------------------------+ +-set--+-retention--hours---+-+ | '-interval--seconds--' | '-status----------------------'
>>-lbccontrol--manager--+-interval--seconds-------------------------+-> +-loglevel--level---------------------------+ +-logsize--+-size | unlimited-+-------------+ | '-bytes------------' | +-quiesce--server--+------+-----------------+ | '-now--' | +-reach set--+-interval--seconds----------+-+ | +-loglevel--level------------+ | | '-logsize--size | unlimited--' | +-refresh--refresh cycle--------------------+ +-report--+-----------------+---------------+ | '-cluster+c2+...--' | +-restart--message--------------------------+ +-sensitivity--weight-----------------------+ +-smoothing--value--------------------------+ +-start--+--------------------------+-------+ | '-logfilename--metricport--' | +-status------------------------------------+ +-stop--------------------------------------+ +-unquiesce--server-------------------------+ '-version-----------------------------------' >--------------------------------------------------------------><
ȱʡÎļþ°²×°ÔÚ logs Ŀ¼ÖС£Çë²ÎÔĸ½Â¼ F, Ñù±¾ÅäÖÃÎļþ¡£²ÎÔĸü¸ÄÈÕÖ¾Îļþ·¾¶£¬ÒÔ»ñÈ¡Óйظü¸Ä±£´æÈÕÖ¾ÎļþµÄĿ¼µÄÐÅÏ¢¡£
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lbccontrol manager interval 5
lbccontrol manager loglevel 0
lbccontrol manager logsize 1000000
lbccontrol manager quiesce 130.40.52.153
lbccontrol manager refresh 3
lbccontrol manager report¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
lbccontrol>>manager report ---------------------------------------- | HOST TABLE LIST | STATUS | ---------------------------------------- | server6| ACTIVE| | server5| ACTIVE| | server4| ACTIVE| | server3| ACTIVE| | server2| ACTIVE| | server1| ACTIVE| ---------------------------------------- ------------------------------------------------------------------------------------------------- | 9.67.154.35 | WEIGHT | ACTIVE % 49 | NEW % 50 | PORT % 1 | SYSTEM % 0 | ------------------------------------------------------------------------------------------------- | PORT: 80 | NOW | NEW | WT | CONNECT | WT | CONNECT | WT | LOAD | WT | LOAD | ------------------------------------------------------------------------------------------------- | server1 | 4 | 4 | 5 | 0 | 5 | 0 | 3| 301| -9999| -1| | server2 | 5 | 5 | 5 | 0 | 5 | 0 | 6| 160| -9999| -1| ------------------------------------------------------------------------------------------------- | PORT TOTALS:| 9 | 9 | | 0 | | 0 | | 461 | | -2 | ------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------- | 9.67.154.35 | WEIGHT | ACTIVE % 49 | NEW % 50 | PORT % 1 | SYSTEM % 0 | ------------------------------------------------------------------------------------------------- | PORT: 443 | NOW | NEW | WT | CONNECT | WT | CONNECT | WT | LOAD | WT | LOAD | ------------------------------------------------------------------------------------------------- | server3 | 4 | 4 | 5 | 0 | 5 | 0 | | 0| -9999| -1| | server4 | 5 | 5 | 5 | 0 | 5 | 0 | 0| 0| -9999| -1| ------------------------------------------------------------------------------------------------- | PORT TOTALS:| 9 | 9 | | 0 | | 0 | | 0 | | -2 | ------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------- | 9.67.154.34 | WEIGHT | ACTIVE % 49 | NEW % 50 | PORT % 1 | SYSTEM % 0 | ------------------------------------------------------------------------------------------------- | PORT: 80 | NOW | NEW | WT | CONNECT | WT | CONNECT | WT | LOAD | WT | LOAD | ------------------------------------------------------------------------------------------------- | server5 | 5 | 5 | 5 | 0 | 5 | 0 | 5| 160| -9999| -1| | server6 | 0 | 0 | 5 | 0 | 5 | 0 | -9999| -1| -9999| -1| ------------------------------------------------------------------------------------------------- | PORT TOTALS:| 5 | 5 | | 0 | | 0 | | 159 | | -2 | ------------------------------------------------------------------------------------------------- -------------------------------- | ADVISOR | PORT | TIMEOUT | -------------------------------- | http | 80 | unlimited | --------------------------------
lbccontrol manager restart Restarting the manager to update code¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
320-14:04:54 ÖØÐÂÆô¶¯¹ÜÀíÆ÷ÒÔ¸üдúÂë
lbccontrol manager sensitivity 10
lbccontrol manager smoothing 2.0
lbccontrol manager start ndmgr.log
lbccontrol manager status¸ÃÃüÁî²úÉúÀàËÆÒÔÏÂʾÀýµÄÊä³ö£º
¹ÜÀíÆ÷״̬£º ============= ¶ÈÁ¿¶Ë¿Ú ..................................... 10004 ¹ÜÀíÆ÷ÈÕÖ¾ÎļþÃû ............................. manager.log ¹ÜÀíÆ÷ÈÕÖ¾¼¶±ð ............................... 1 ×î´ó¹ÜÀíÆ÷ÈÕÖ¾´óС£¨×Ö½Ú£© ................... unlimited ÁéÃô¶È¼¶±ð ................................... 0.05 ƽ»¬Ö¸Êý ..................................... 1.5 ¸üмä¸ô£¨Ã룩 .......... .................... 2 ȨֵˢÐÂÖÜÆÚ ................................. 1 µ½´ïÈÕÖ¾¼¶±ð ................................. 1 ×î´óµ½´ïÈÕÖ¾´óС£¨×Ö½Ú£© ..................... unlimited µ½´ï¸üмä¸ô£¨Ã룩 ........................... 7
lbccontrol manager stop
lbccontrol manager version
>>-lbccontrol--metric--+-add--cluster+c2+...+cN:metric+metric1+...+metricN---------------+-> +-remove--cluster+c2+...+cN:metric+metric1+...+metricN------------+ +-proportions--cluster+c2+...+cN:proportion1 prop2 prop3...propN--+ '-status--cluster+c2+...+cN:metric+metric1+...+metricN------------' >--------------------------------------------------------------><
×¢£º¶ÔÓÚ Cisco ×ÉѯÆ÷£¬Èº¼¯µØÖ·Ï൱ÓÚ Cisco CSS ½»»»»úÅäÖÃÖÐËùÓÐÕßÄÚÈݹæÔòµÄÐéÄâ IP£¨VIP£©µØÖ·¡£
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lbccontrol metric add 10.10.10.20:metric1
lbccontrol metric proportions 10.10.10.20 48 52
lbccontrol metric status 10.10.10.20:metric1¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¶ÈÁ¿×´Ì¬£º ------------ Ⱥ¼¯ .......................... 10.10.10.20 ¶ÈÁ¿Ãû³Æ ...................... metric1 ¶ÈÁ¿±ÈÀý ............. 52 ·þÎñÆ÷ ......... 9.37.56.100 ¶ÈÁ¿Êý¾Ý ....... -1
>>-lbccontrol--port--+-add--cluster:port--+----------------------+-+-> | '-weightbound--weight--' | +-set--cluster:port--+----------------------+-+ | '-weightbound--weight--' | +-remove--cluster:port------------------------+ '-status--cluster:port------------------------' >--------------------------------------------------------------><
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lbccontrol port add 130.40.52.153:80+23
lbccontrol port set 130.40.52.153:80 weightbound 10
lbccontrol port remove 130.40.52.153:23
lbccontrol port status 9.67.131.153:80¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¶Ë¿Ú״̬£º ------------ ¶Ë¿ÚºÅ ......................... 80 Ⱥ¼¯µØÖ· ....................... 9.67.131.153 ·þÎñÆ÷Êý ....................... 2 Ȩֵ·¶Î§ ....................... 10
>>-lbccontrol--server--+-add--cluster:port:server--+---------------------+-------------+-> | +-weight--value-------+ | | +-fixedweight--value--+ | | '-address--address----' | +-set--cluster :port:server--+-weight--value-------+-+ | '-fixedweight--value--' | +-down--cluster :port:server-------------------------+ +-remove--cluster :port:server-----------------------+ +-report--cluster :port:server-----------------------+ +-up--cluster :port:server---------------------------+ '-status--cluster :port:server-----------------------' >--------------------------------------------------------------><
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lbccontrol server add 130.40.52.153:80:27.65.89.42
lbccontrol server remove ::27.65.89.42
lbccontrol server set 130.40.52.153:80:27.65.89.42 weight 10
>>-lbccontrol--set--+-loglevel--level---+---------------------->< +-logsize--+-size-+-+ | '-size-' | '-logstatus---------'
>>-lbccontrol--status------------------------------------------><
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lbccontrol status¸ÃÃüÁî²úÉúÀàËÆÒÔϵÄÊä³ö£º
¹ÜÀíÆ÷ÒѾÆô¶¯¡£ -------------------------------- | ADVISOR | PORT | TIMEOUT | -------------------------------- | http | 80 | unlimited | | ftp | 21 | unlimited | --------------------------------
´Ë¸½Â¼°üº¬ Network Dispatcher µÄ Dispatcher ×é¼þµÄÑù±¾ÅäÖÃÎļþ¡£
Ñù±¾ÎļþλÓÚ .../nd/servers/samples/ Ŀ¼ÖС£
#!/bin/ksh
#
# configuration.sample - Sample configuration file for the
Dispatcher component
#
#
# Ensure the root user is the one executing this script.
#
# iam=`whoami`
# if [ "$iam" != "root" ]if [ "$iam" != "root" ]
# then
# echo "You must login as root to run this script"
# exit 2
# fi
#
# First start the server
#
# ndserver start
# sleep 5
#
# Then start the executor
#
# ndcontrol executor start
#
# The Dispatcher can be removed at any time using the
# "ndcontrol executor stop" and "ndserver stop" commands to
# stop the executor and server respectively prior to removing
# the Dispatcher software.
#
# The next step in configuring the Dispatcher is to set the
# NFA (non-forwarding address) and the cluster address(es).
#
# The NFA is used to remotely access the Dispatcher machine
# for administration or configuration purposes. This
# address is required since the Dispatcher will forward packets
# to the cluster address(es).
#
# The CLUSTER address is the hostname (or IP address) to
# which remote clients will connect.
#
# Anywhere in this file, you may use hostnames and IP
# addresses interchangeably.
#
# NFA=hostname.domain.name
# CLUSTER=www.yourcompany.com
# echo "Loading the non-forwarding address"
# ndcontrol executor set nfa $NFA
#
# The next step in configuring the Dispatcher is to create
# a cluster. The Dispatcher will route requests sent to
# the cluster address to the corresponding server machines
# defined to that cluster. You may configure and server
# multiple cluster address using Dispatcher.
# Use a similar configuration for CLUSTER2, CLUSTER3, etc.
#
# echo "Loading first CLUSTER address "
# ndcontrol cluster add $CLUSTER
#
# Now we must define the ports this cluster will use. Any
# requests received by the Dispatcher on a defined port will
# be forwared to the corresponding port of one of the server
# machines.
#
# echo "Creating ports for CLUSTER: $CLUSTER"
# ndcontrol port add $CLUSTER:20+21+80
#
# The last step is to add each of the server machines to the
# ports in this cluster.
# Again, you can use either the hostname or the IP address
# of the server machines.
#
# SERVER1=server1name.domain.name
# SERVER2=server2name.domain.name
# SERVER3=server3name.domain.name
# echo "Adding server machines"
# ndcontrol server add $CLUSTER:20+21+80:
# $SERVER1+$SERVER2+$SERVER3
#
# We will now start the load balancing components of the
# Dispatcher. The main load balancing component is called
# the manager and the second load balancing components are the
# advisors. If the manager and advisors are not running the
# Dispatcher sends requests in a round-robin format. Once the
# manager is started, weighting decisions based on the number
# of new and active connections is employed and incoming
# requests are sent to the best server. The advisors give the
# manager further insight into a servers ability to service
# requests as well as detecting whether a server is up. If
# an advisor detects that a server is down it will be
# marked down (providing the manager proportions have been
# set to include advisor input) and no further requests will be
# routed to the server.
# The last step in setting up the load balancing components
# is to set the manager proportions. The manager updates the
# weight of each of the servers based on four policies:
# 1. The number of active connections on each server.
# 2. The number of new connections to each server.
# 3. Input from the advisors.
# 4. Input from the system level advisor.
# These proportions must add up to 100. As an example, setting
# the manager proportions to
# ndcontrol manager proportions 48 48 0 0
# will give active and new connections 48% input into the
# weighting decision, the advisors will contribute 4% and
# the system input will not be considered.
#
# NOTE: By default the manager proportions are set to 50 50 0 0
#
# echo "Starting the manager..."
# ndcontrol manager start
# echo "Starting the FTP advisor on port 21 ..."
# ndcontrol advisor start ftp 21
# echo "Starting the HTTP advisor on port 80 ..."
# ndcontrol advisor start http 80
# echo "Starting the Telnet advisor on port 23 ..."
# ndcontrol advisor start telnet 23
# echo "Starting the SMTP advisor on port 25 ..."
# ndcontrol advisor start smtp 25
# echo "Starting the POP3 advisor on port 110 ..."
# ndcontrol advisor start pop3 110
# echo "Starting the NNTP advisor on port 119 ..."
# ndcontrol advisor start nntp 119
# echo "Starting the SSL advisor on port 443 ..."
# ndcontrol advisor start ssl 443
#
# echo "Setting the manager proportions..."
# ndcontrol manager proportions 58 40 2 0
#
# The final step in setting up the Dispatcher machine is to
# alias the Network Interface Card (NIC).
#
# NOTE: Do NOT use this command in a high availability
# environment. The go* scripts will configure the NIC and
# loopback as necessary.
# ndcontrol cluster configure $CLUSTER
# If your cluster address is on a different NIC or subnet
from the NFA use the following format for the cluster configure
command.
# ndcontrol cluster configure $CLUSTER tr0 0xfffff800
# where tr0 is your NIC (tr1 for the second token ring card, en0
# for the first ethernet card) and 0xfffff800 is a valid
# subnet mask for your site.
#
#
# The following commands are set to the default values.
# Use these commands as a guide to change from the defaults.
# ndcontrol manager loglevel 1
# ndcontrol manager logsize 1048576
# ndcontrol manager sensitivity 5.000000
# ndcontrol manager interval 2
# ndcontrol manager refresh 2
#
# ndcontrol advisor interval ftp 21 5
# ndcontrol advisor loglevel ftp 21 1
# ndcontrol advisor logsize ftp 21 1048576
# ndcontrol advisor timeout ftp 21 unlimited
# ndcontrol advisor interval telnet 23 5
# ndcontrol advisor loglevel telnet 23 1
# ndcontrol advisor logsize telnet 23 1048576
# ndcontrol advisor timeout telnet 23 unlimited
# ndcontrol advisor interval smtp 25 5
# ndcontrol advisor loglevel smtp 25 1
# ndcontrol advisor logsize smtp 25 1048576
# ndcontrol advisor timeout smtp 25 unlimited
# ndcontrol advisor interval http 80 5
# ndcontrol advisor loglevel http 80 1
# ndcontrol advisor logsize http 80 1048576
# ndcontrol advisor timeout http 80 unlimited
# ndcontrol advisor interval pop3 110 5
# ndcontrol advisor loglevel pop3 110 1
# ndcontrol advisor logsize pop3 110 1048576
# ndcontrol advisor timeout pop3 110 unlimited
# ndcontrol advisor interval nntp 119 5
# ndcontrol advisor loglevel nntp 119 1
# ndcontrol advisor logsize nntp 119 1048576
# ndcontrol advisor timeout nntp 119 unlimited
# ndcontrol advisor interval ssl 443 5
# ndcontrol advisor loglevel ssl 443 1
# ndcontrol advisor logsize ssl 443 1048576
# ndcontrol advisor timeout ssl 443 unlimited
#
ÒÔÏÂÊÇʹÓà Windows ʱµÄÑù±¾ Network Dispatcher ÅäÖÃÎļþ£¬³ÆÎª configuration.cmd.sample¡£
@echo off rem configuration.cmd.sample - Sample configuration file for the rem Dispatcher component. rem rem ndserver must be started via Services rem rem rem Then start the executor rem rem call ndcontrol executor start rem rem The next step in configuring the Dispatcher is to set the rem NFA (non-forwarding address) and to set the cluster rem address(es). rem rem The NFA is used to remotely access the Dispatcher rem machine for administration configuration purposes. This rem address is required since the Dispatcher will forward rem packets to the cluster address(es). rem rem The CLUSTER address is the hostname (or IP address) to which rem remote clients will connect. rem rem Anywhere in this file, you may use hostnames and IP rem addresses interchangeably. rem NFA=[non-forwarding address] rem CLUSTER=[your clustername] rem rem set NFA=hostname.domain.name rem set CLUSTER=www.yourcompany.com rem echo "Loading the non-forwarding address" rem call ndcontrol executor set nfa %NFA% rem rem The following commands are set to the default values. rem Use these commands to change the defaults rem call ndcontrol executor set fintimeout 30 rem call ndcontrol executor set fincount 4000 rem rem The next step in configuring the Dispatcher is to create rem a cluster. The Dispatcher will route requests sent to rem the cluster address to the corresponding server machines rem defined to that cluster. You may configure and server rem multiple cluster addresses using Dispatcher. rem Use a similar configuration for CLUSTER2, CLUSTER3, etc. rem rem echo "Loading first CLUSTER address " rem call ndcontrol cluster add %CLUSTER% rem rem Now we must define the ports this cluster will use. Any rem requests received by the Dispatcher on a defined port rem will be forwarded to the corresponding rem port of one of the server machines. rem rem echo "Creating ports for CLUSTER: %CLUSTER%" rem call ndcontrol port add %CLUSTER%:20+21+80 rem rem The last step is to add each of the server machines to rem the ports in this cluster. Again, you can use either the rem hostname or the IP address of the server machines. rem rem set SERVER1=server1name.domain.name rem set SERVER2=server2name.domain.name rem set SERVER3=server3name.domain.name rem echo "Adding server machines" rem call ndcontrol server add %CLUSTER%:20+21+80: rem %SERVER1%+%SERVER2%+%SERVER3% rem rem We will now start the load balancing components of the rem Dispatcher. The main load balancing component is called rem the manager and the second load balancing components are the rem advisors. If the manager and advisors are not rem running the Dispatcher sends requests in a round-robin rem format. Once the manager is started, weighting decisions rem based on the number of new and active connections is rem employed and incoming requests are sent to the best rem server. The advisors give the manager further insight rem into a servers ability to service requests as well as rem detecting whether a server is up. If an advisor detects rem that a server is down it will be marked down (providing the rem manager proportions have been set to include advisor rem input) and no further requests will be routed to the server. rem The last step in setting up the load balancing rem components is to set the manager proportions. The rem manager updates the weight of each of the servers based rem on four policies: rem 1. The number of active connections on each server rem 2. The number of new connections for each server rem 3. Input from the advisors. rem 4. Input from the system level advisor. rem rem These proportions must add up to 100. As an example, rem setting the cluster proportions via rem ndcontrol cluster set <cluster> proportions 48 48 4 0 rem will give active and new connections 48% input into the rem weighting decision, the advisor will contribute 4% and rem the system input will not be considered. rem rem NOTE: By default the manager proportions are set to rem 50 50 0 0 rem echo "Starting the manager..." rem call ndcontrol manager start rem echo "Starting the FTP advisor on port 21 ..." rem call ndcontrol advisor start ftp 21 rem echo "Starting the HTTP advisor on port 80 ..." rem call ndcontrol advisor start http 80 rem echo "Starting the Telnet advisor on port 23 ..." rem call ndcontrol advisor start telnet 23 rem echo "Starting the SMTP advisor on port 25 ..." rem call ndcontrol advisor start smtp 25 rem echo "Starting the POP3 advisor on port 110 ..." rem call ndcontrol advisor start pop3 110 rem echo "Starting the NNTP advisor on port 119 ..." rem call ndcontrol advisor start nntp 119 rem echo "Starting the SSL advisor on port 443 ..." rem call ndcontrol advisor start ssl 443 rem rem echo "Setting the cluster proportions..." rem call ndcontrol cluster set %CLUSTER% proportions 58 40 2 0 rem rem The final step in setting up the Dispatcher machine is rem to alias the Network Interface Card (NIC). rem rem NOTE: Do NOT use this command in a high availability rem environment. The go* scripts will configure the NIC and rem loopback as necessary. rem rem ndcontrol cluster configure %CLUSTER% rem If your cluster address is on a different NIC or subnet rem from the NFA use the following format for the cluster rem configure command. rem ndcontrol cluster configure %CLUSTER% tr0 0xfffff800 rem where tr0 is your NIC (tr1 for the second token ring card, rem en0 for the first ethernet card) and 0xfffff800 is rem a valid subnet mask for your site. rem rem rem The following commands are set to the default values. rem Use these commands to guide to change from the defaults. rem call ndcontrol manager loglevel 1 rem call ndcontrol manager logsize 1048576 rem call ndcontrol manager sensitivity 5.000000 rem call ndcontrol manager interval 2 rem call ndcontrol manager refresh 2 rem rem call ndcontrol advisor interval ftp 21 5 rem call ndcontrol advisor loglevel ftp 21 1 rem call ndcontrol advisor logsize ftp 21 1048576 rem call ndcontrol advisor timeout ftp 21 unlimited rem call ndcontrol advisor interval telnet 23 5 rem call ndcontrol advisor loglevel telnet 23 1 rem call ndcontrol advisor logsize telnet 23 1048576 rem call ndcontrol advisor timeout telnet 23 unlimited rem call ndcontrol advisor interval smtp 25 5 rem call ndcontrol advisor loglevel smtp 25 1 rem call ndcontrol advisor logsize smtp 25 1048576 rem call ndcontrol advisor timeout smtp 25 unlimited rem call ndcontrol advisor interval http 80 5 rem call ndcontrol advisor loglevel http 80 1 rem call ndcontrol advisor logsize http 80 1048576 rem call ndcontrol advisor timeout http 80 unlimited rem call ndcontrol advisor interval pop3 110 5 rem call ndcontrol advisor loglevel pop3 110 1 rem call ndcontrol advisor logsize pop3 110 1048576 rem call ndcontrol advisor timeout pop3 110 unlimited rem call ndcontrol advisor interval nntp 119 5 rem call ndcontrol advisor loglevel nntp 119 1 rem call ndcontrol advisor logsize nntp 119 1048576 rem call ndcontrol advisor timeout nntp 119 unlimited rem call ndcontrol advisor interval ssl 443 5 rem call ndcontrol advisor loglevel ssl 443 1 rem call ndcontrol advisor logsize ssl 443 1048576 rem call ndcontrol advisor timeout ssl 443 unlimited rem
ÏÂÃæÊÇÒ»¸öÑù±¾¹ËÎʳÌÐòÎļþ£¬ÃûΪ ADV_sample¡£
/**
* ADV_sample: The Network Dispatcher HTTP advisor
*
*
* This class defines a sample custom advisor for Network Dispatcher.
* Like all advisors, this custom advisor extends the function of the
* advisor base, called ADV_Base. It is the advisor base that actually
* performs most of the advisor's functions, such as reporting loads back
* to the Network Dispatcher for use in the Network Dispatcher's weight
* algorithm. The advisor base also performs socket connect and close
* operations and provides send and receive methods for use by the advisor.
* The advisor itself is used only for sending and receiving data to and
* from the port on the server being advised.
* The TCP methods within the advisor base are timed to calculate the load.
* A flag within the constructor in the ADV_base
* overwrites the existing load with the new load returned from the advisor
* if desired.
*
* Note: Based on a value set in the constructor, the advisor base supplies
* the load to the weight algorithm at specified intervals. If the actual
* advisor has not completed so that it can return a valid load, the advisor
* base uses the previous load.
*
* NAMING
*
* The naming convention is as follows:
*
* - The file must be located in the following Network Dispatcher
* Directories:
*
* nd/servers/lib/CustomAdvisors/
* (nd\servers\lib\CustomAdvisors on Windows 2000)
*
* - The Advisor name must be preceded with "ADV_". The advisor can
* be started with only the name, however; for instance, the "ADV_sample"
* advisor can be started with "sample".
*
* - The advisor name must be in lowercase.
*
* With these rules in mind, therefore, this sample is referred to as:
*
* <base directory>/lib/CustomAdvisors/ADV_sample.class
*
*
* Advisors, as with the rest of Network Dispatcher, must be compiled with
* the prereq version of Java.
* To ensure access to Network Dispatcher classes, make sure that the
* ibmnd.jar file (located in the lib subdirectory of the base directory)
* is included in the system's CLASSPATH.
*
*
* Methods provided by ADV_Base:
*
* - ADV_Base (Constructor):
*
* - Parms
* - String sName = Name of the advisor
* - String sVersion = Version of the advisor
* - int iDefaultPort = Default port number to advise on
* - int iInterval = Interval on which to advise on the servers
* - String sDefaultLogFileName = Unused. Must be passed in as "".
* - boolean replace = True - replace the load value being calculated
* by the advisor base
* False - add to the load value being calculated
* by the advisor base
* - Return
* - Constructors do not have return values.
*
* Because the advisor base is thread based, it has several other methods
* available for use by an advisor. These methods can be referenced using
* the CALLER parameter passed in getLoad().
*
* These methods are as follows:
*
* - send - Send a packet of information on the established socket
* connection to the server on the specified port.
* - Parms
* - String sDataString - The data to be sent is sent in the form of a
* string
* - Return
* - int RC - Whether the data was sucessfully sent or not: zero
* indicates data was sent; a negative integer indicates an
* error.
*
* - receive - Receive information from the socket connection.
* - Parms
* - StringBuffer sbDataBuffer - The data received during the receive
* call
* - Return
* - int RC - Whether the data was successfully received or not; zero
* indicates data was sent; a negative integer indicates an error.
*
* If the function provided by the advisor base is
* not sufficient, you can create the appropriate function within the
* advisor and the methods provided by the advisor base will then be
* ignored.
*
* An important question regarding
* the load returned is whether to apply it to the load being generated
* within the advisor base, or to replace it; there are valid instances of
* both situations.
*
* This sample is essentially the Network Dispatcher HTTP advisor. It
* functions very simply:
* a send request--an http head request--is issued. Once a response is
* received, the getLoad method terminates, flagging the advisor base to
* stop timing the request. The method is then complete. The information
* returned is not parsed; the load is based on the time required
* to perform the send and receive operations.
*/
package CustomAdvisors;
import com.ibm.internet.nd.advisors.*;
public class ADV_sample extends ADV_Base implements ADV_MethodInterface
{
String COPYRIGHT = "(C) Copyright IBM Corporation 1997,
All Rights Reserved.\n";
static final String ADV_NAME = "Sample";
static final int ADV_DEF_ADV_ON_PORT = 80;
static final int ADV_DEF_INTERVAL = 7;
// Note: Most server protocols require a carriage return ("\r") and line
// feed ("\n") at the end of messages. If so, include them in your
// string here.
static final String ADV_SEND_REQUEST =
"HEAD / HTTP/1.0\r\nAccept: */*\r\nUser-Agent: " +
"IBM_Network_Dispatcher_HTTP_Advisor\r\n\r\n";
/**
* Constructor.
*
* Parms: None; but the constructor for ADV_Base has several parameters
* that must be passed to it.
*
*/
public ADV_sample()
{
super( ADV_NAME,
"2.0.0.0-03.27.98",
ADV_DEF_ADV_ON_PORT,
ADV_DEF_INTERVAL,
"", // not used
false);
super.setAdvisor( this );
}
/**
* ADV_AdvisorInitialize
*
* Any Advisor-specific initialization that must take place after the
* advisor base is started.
* This method is called only once and is typically not used.
*/
public void ADV_AdvisorInitialize()
{
return;
}
/**
* getLoad()
*
* This method is called by the advisor base to complete the advisor's
* operation, based on details specific to the protocol. In this sample
* advisor, only a single send and receive are necessary; if more complex
* logic is necessary, multiple sends and receives can be issued.
* For example, a response might be received and parsed. Based on the
* information learned thereby, another send and receive could be issued.
*
* Parameters:
*
* - iConnectTime - The current load as it refers to the length of time it
* took to complete the connection to the server through
] * the specified port.
*
* - caller - A reference to the advisor base class where the Network
* Dispatcher-supplied methods are to perform simple TCP
* requests, mainly send and receive.
*
* Results:
*
* - The load - A value, expressed in milliseconds, that can either be
* added to the existing load, or that can replace the existing load,
* as determined by the constructor's "replace" flag.
*
* The larger the load, the longer it took the server to respond;
* therefore, the higher the weight will be within Network Dispatcher
* regarding load balancing.
*
* If the value is negative, an error is assumed. An error from an
* advisor indicates that the server the advisor is trying to reach is
* not accessible and has been identified as being down.
* Network Dispatcher will not attempt to load balance to a server that
* is down. Network Dispatcher will resume load balancing to the server
* when a positive value is received.
*
* A value of zero is typically not returned; Network Dispatcher handles
* a load of zero in a special way. Zero is assumed to indicate an
* unknown status, and Network Dispatcher gives the server a high
* weight in response.
*/
public int getLoad(int iConnectTime, ADV_Thread caller)
{
int iRc;
int iLoad = ADV_HOST_INACCESSIBLE; // -1
// Send tcp request
iRc = caller.send(ADV_SEND_REQUEST);
if (iRc >= 0)
{
// Perform a receive
StringBuffer sbReceiveData = new StringBuffer("");
iRc = caller.receive(sbReceiveData);
// If the receive is successful, a load of zero is returned.
// This is because the "replace" flag is set to false,
// indicating that the load built within the base advisor is
// to be used.
// Since nothing was done with the returned data, additional
// load is not necessary.
// Note: it is known that the advisor base load will not be
// zero, therefore a zero load will
// not be returned for use in calculating the weight.
if (iRc >= 0)
{
iLoad = 0;
}
}
return iLoad;
}
} // End - ADV_sample
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