CSV file statistics definitions

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 name to which this container 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 the number of entries in a partition since the server started. For example, a value of 100 indicates that the entry is the 100th entry since the server started.
TotalGetCount (column 8): Displays the total number of get operations on the map. The total determines both hits and misses that the map made 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 increase (delta) of data count since the last data sample.
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 increase of 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.
PartitionId (column 3): Specifies the partition ID.
Count (column 4): Indicates the number of transactions collected since the server started. For example, a value of 100 indicates that the entry is the 100th entry since the server started.
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 (in milliseconds) spent by the most time-consuming transaction for this server.
MinTime (column 8): Displays the time (in milliseconds) spent by the least time-consuming transaction for this server.
MeanTime (column 9): Specifies the average time (in milliseconds) spent on the total transaction time.
TotalTime (column 10): Displays total time (in milliseconds) spent on transactions for this server, since the time for this server was initialized.
AvgTransTime (column 11): Displays the average time (in milliseconds) 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 current count minus the count from the previous sample. The delta since the last sample.
LastTotalTime (column 16): Specifies the current total time (in milliseconds) minus the total time from the previous sample. The delta in the total time.
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.