Portlet Factory, Version 6.1.2

 

Statistics log.properties file entries and format

The statistics log collects information about memory usage, active sessions, persisted (or swapped) sessions and the number of times models run.

Server statistics log files grow rapidly and multiply quickly when statistics logging is enabled. The maximum file size for this log file and all others is governed by the Log File Max Size setting in the logging.properties file.

Log entries that begin with log.serverStat contain information about serverStatus logging.

Log entries that begin with logging.serverStats.logBy and logging.serverStats.default have meanings similar to their access log counterparts.

Entries in the properties file determine what information is logged. The logging.ServerStats section of the WEB-INF/config/logging.properties file can have any number of entries. Each entry begins with log.serverStats.criterion and has the following attributes to determine what is logged.

  • Item For example: 
    log.serverStats.criterion.tooManySessions.item=Sessions

  • Comparator For example: 
    log.serverStats.criterion.tooManySessions.comparator=>

  • Threshold For example: 
    log.serverStats.criterion.tooManySessions.threshold=50

  • Message For example: 
    log.serverStats.criterion.tooManySessions.message="Session threshold reached"

  • flushImmediately For example: 
    log.serverStats.criterion.tooManySessions.flushImmediately

 

Item

An item is one value from the following list:

ActiveSessions

Number of sessions that were accessed since the last update. Snapshot.

ErrorsLogged

Number of ERROR level events generated. The error details are normally recorded in the event log. Accumulated.

MemFree

Total current Java heap memory free in bytes. Snapshot.

MemInUse

Total current Java heap memory in use in bytes. Snapshot.

MemTotal

Total Java heap size in bytes. Snapshot.

ModelCacheEntries

Number of models currently in cache. Snapshot.

ModelCacheRegenEntries

Number of regenerated web applications currently in cache. Snapshot.

OutputCacheHits

Number of hits to cached output data (when the Cache Control builder is used). Accumulated.

OutputCacheMisses

Number of misses to cached output (how many times output data was put in cache). Accumulated.

PeakSessions

Maximum number of sessions in memory since IBM® WebSphere Portlet Factory servlet started. Accumulated.

Regens

Total number of requests for regenerated models. Accumulated.

RegensFromCache

Of the total Regens requested, the number that were obtained from cache. Accumulated.

RestoredSessions

Number of sessions recovered from failover. Accumulated.

Sessions

Current number of user sessions in memory. Sessions stay in server memory until a logout or until the session expires due to inactivity. It includes web application sessions. Snapshot.

SevereErrorsLogged

Number of SEVERE level events generated. Accumulated.

WarningsLogged

Number of WARNING level events generated. Accumulated.

WebAppJSPSourceWritten

Number of times a generated JSP source page is written to disk. This happens just before a page is rendered for the first time. Accumulated.

WebAppMethodClassWritten

Number of times a generated method class for a web application is written (to genjava folder) and compiled. Accumulated.

WebAppRequests

Number of requests to web application models.

WebAppsInSessions

Total number of model instances held in all sessions in memory. Snapshot.

WebAppSOAPRequests

Similar function as WebAppRequests, but it is specifically for incoming SOAP requests.

 

Comparator

A comparison operator is one of the following values:

  • >= (greater than or equal to)

  • > (greater than)

  • = (equal to)

  • < (less than)

  • <= (less than or equal to)

 

Threshold

A threshold is a value defining an upper or lower limit for the item.

 

Message

A message is text that describes the logged event.

 

flushImmediately

Indicates to write the log immediately rather than queue it for output.

Parent topic: IBM WebSphere Portlet Factory property files

Library | Support |