Use this page to configure an HTTP error log and National Center for Supercomputing Applications (NCSA) access log for an HTTP transport channel. The HTTP error log contains HTTP errors. The level of error logging that occurs is dependent on the value that is selected for the Error log level field.
To view this administrative console page, click Application servers > server name > HTTP error and NCSA access logging.
The NCSA access log contains a record of all inbound client requests that the HTTP transport channel handles. All of the messages that are contained in a NCSA access log are in NCSA format.
The HTTP error log contains a record of HTTP processing errors that occur. The level of error logging that occurs is dependent on the value that is selected for the Error log level field.
Configuring and enabling the logging is a two step process. After you use this page to configure the logging, you must explicitly enable each type of logging for the appropriate HTTP channels. To view the settings page for an HTTP channels, click Servers > Application Servers > server > Web container transport chains > Chain > HTTP inbound channel.
When selected, a record of inbound client requests that the HTTP transport channel handles is kept in the NCSA access log.
Specifies the directory path and name of the NCSA access log. Standard variable substitutions, such as $(SERVER_LOG_ROOT), can be used when specifying the directory path.
Specifies the maximum size, in megabytes, of the NCSA access log.
When the content of the NCSA access log reaches the specified maximum
size limit, a <logname>.<timestamp>.log
archive file
is created. The current content of the NCSA access
log is then copied to this archive log.
ncsa_access_11_08_20_16.11.04.log
The next time the content in the NCSA access log reaches the specified
maximum log size, the content of the NCSA access log is again copied
to the <logname>.<timestamp>.log
archive file
. The copy process overwrites the current content
of the archive log with the most current content of the NCSA access
log.
Specifies that the NCSA format is used when logging client access information. If Common is selected, the log entries contain the requested resource and a few other pieces of information, but does not contain referral, user agent, or cookie information. If Combined is selected, referral, user agent, and or cookie information is included.
When selected, HTTP errors that occur while the HTTP channel processes client requests are recorded in the HTTP error log.
Specifies the directory path and the name of the HTTP error log. Standard variable substitutions, such as $(SERVER_LOG_ROOT), can be used when specifying the directory path.
Specifies the maximum size, in megabytes, of the HTTP error log.
When the content of the HTTP error log reaches the specified maximum
size limit, a <logname>.<timestamp>.log
archive file
is created. The current content of the HTTP error
log is then copied to this archive log.
http_access_11_08_20_16.11.04.log
The next time the content in the HTTP error log reaches the specified
maximum log size, the content of the HTTP error log is again copied
to the <logname>.<timestamp>.log
archive file
. The copy process overwrites the current content
of the archive file with the most current content of the HTTP error
log.
Specifies the type of error messages that are included in the HTTP error log.
When selected, either an NCSA access log or an HTTP error log, or both are initialized when the server starts.