The CSV files that you can download for a server include
statistics that you can use to build historical charts or other information.
Java virtual machine (JVM) statistics log
- TimeStamp (column 1)
- Specifies the date and time of the statistics snapshot that was
taken for the Java virtual machine (JVM).
- ServerName (column 2)
- Specifies the server name of the JVM.
- Hostname (column 3)
- Specifies the host name of the JVM.
- DomainName (column 4)
- Specifies the catalog service domain to which the JVM belongs.
- FreeMemory (column 5)
- Specifies the number of available bytes for the JVM.
- MaxMemory (column 6)
- Specifies the maximum number of bytes that can be allocated for
the JVM.
- TotalMemory (column 7)
- Displays the real memory usage in the server
run time.
- AvailProcs (column 8)
- Displays the number of processors that are available
to this catalog service and its maps. For the highest stability, run
your servers at 60% processor loading and JVM heaps at 60% heap loading.
Spikes can then drive the processor usage to 80–90%, but do not regularly
run your servers higher than these levels
Map statistics log
- TimeStamp (column 1)
- Specifies the date and time of the statistics snapshot that was
taken for the map.
- MapName (column 2)
- Specifies the name of the map.
- PartitionId (column 3)
- Specifies the ID of the partition.
- OgName (column 4)
- Specifies the name of the data grid to which this map belongs.
- MapSetName (column 5)
- Specifies the map set to which this map belongs.
- HitRate (column 6)
- Displays the hit rate (hit ratio) for the selected map. A high
hit rate is desirable. The hit rate indicates how well the data grid
is helping to avoid accessing the persistent store.
- Count (column 7)
- Indicates a count of the data samples that have been gathered
since the server started. For example, a value of 100 indicates that
the entry is the 100th sample entry that has been gathered since the
server started.
- TotalGetCount (column 8)
- Displays the total number of times the map had
to access the persistent store to obtain data.
- TotalHitCount (column 9)
- Displays the total number of times the requested
data was found in the map, avoiding the need to access persistent
store.
- StartTime (column 10)
- Specifies the time that the counters began from last reset call.
The resets occur when the server starts or restarts.
- LastCount (column 11)
- Specifies the amount of time since the last data sample was taken.
- LastTotalGetCount (column 12)
- Indicates the current total number of get operations from the
cache minus the number of get operations in the previous time period.
- LastTotalHitCount (column 13)
- Indicates the current total number of hits from the cache minus
the number of hits in the previous time period.
- UsedBytes (column 14)
- Displays memory consumption by this map. The used
bytes statistics are accurate only when you are using simple objects
or the COPY_TO_BYTES copy mode.
- MinUsedBytes (column 15)
- Displays the low point in memory consumption
by this catalog service and its maps. The used bytes statistics are
accurate only when you are using simple objects or the COPY_TO_BYTES
copy mode.
- MaxUsedBytes (column 16)
- Displays the high point in memory consumption
by this catalog service and its maps. The used bytes statistics are
accurate only when you are using simple objects or the COPY_TO_BYTES
copy mode.
- LastUsedBytes (column 17)
- Indicates the current UsedBytes value minus the UsedBytes value
from the previous statistics collection period.
- SampleLen (column 18)
- Indicates the length, in milliseconds, of the time period during
with the data was sampled.
ObjectGrid statistics log
- TimeStamp (column 1)
- Specifies the date and time of the statistics snapshot that was
taken for the data grid.
- OgName (column 2)
- Specifies the name of the data grid.
- Count (column 3)
- Indicates a count of the data samples that have been gathered
since the server started. For example, a value of 100 indicates that
the entry is the 100th sample entry that has been gathered since the
server started.
- PartitionId (column 4)
- Specifies the partition ID.
- Hostname (column 5)
- Specifies the host name.
- DomainName (column 6)
- Specifies the catalog service domain to which this data grid belongs.
- MaxTime (column 7)
- Displays the time spent by the most time-consuming transaction
for this server.
- MinTime (column 8)
- Displays the time spent by the least time-consuming transaction
for this server.
- MeanTime (column 9)
- Specifies the average time spent on a transaction.
- TotalTime (column 10)
- Displays total time spent on transactions for this
server, since the time for this server was initialized.
- AvgTransTime (column 11)
- Displays the average time required to complete
a transaction for this server.
- AvgThroughPut (column 12)
- Displays the average number of transactions
per second for this server.
- SumOfSquares (column 13)
- Specifies the sum of squares value for the transaction time. This
value measures the deviation from the mean at the given point in time.
- SampleLen (column 14)
- Indicates the length, in milliseconds, of the time period during
with the data was sampled.
- LastDataSample (column 15)
- Specifies the time since the last sample was taken.
- LastTotalTime (column 16)
- Specifies the current total time minus the previous total time
for the data sample.
- StartTime (column 17)
- Indicates the time that the statistics began to be collected since
the last reset of the data. The data is reset when the server restarts.