WildFly and Garbage Collection Logging: Difference between revisions
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| Line 36: | Line 36: | ||
<jvm-options> | <jvm-options> | ||
<option value="-verbose:gc"/> | <option value="-verbose:gc"/> | ||
<option value="-Xloggc: | <option value="-Xloggc:${jboss.server.log.dir}/gc.log"/> | ||
<option value="-XX:+PrintGCDetails"/> | <option value="-XX:+PrintGCDetails"/> | ||
<option value="-XX:+PrintGCDateStamps"/> | <option value="-XX:+PrintGCDateStamps"/> | ||
Revision as of 17:09, 1 November 2016
External
- How to enable Garbage Collection (GC) logging in EAP 6 domain mode https://access.redhat.com/solutions/269023
- Preventing GC log file overwrites upon restart in domain mode https://access.redhat.com/solutions/1325293
- How to rotate gc log file configured in domain mode in EAP 6? https://access.redhat.com/solutions/1132613
Internal
Overview
GC logging is enabled by default for standalone mode (to verify form which version on). It generates output to $JBOSS_HOME/standalone/log/gc.log.<digit>. The system uses log rotation with the number of log files limited to 5, and the size of each file limited to 3 MB.
Enabling GC Logging in Standalone Mode
TODO.
Enabling GC Logging in Domain Mode
Server Node
The GC logging can be enabled for a specific server node, or generically, across the server group.
To enable GC logging for just one server node, modify the corresponding <jvm> declaration in the host.xml file.
To enable GC logging for an entire server group, edit the <ivm-options> section corresponding to the <jvm> configuration specified for the server group, in domain.xml.
In both cases, add the following JVM options:
<jvm-options>
<option value="-verbose:gc"/>
<option value="-Xloggc:${jboss.server.log.dir}/gc.log"/>
<option value="-XX:+PrintGCDetails"/>
<option value="-XX:+PrintGCDateStamps"/>
</jvm-options>
Host Controller
TODO.