[Occurrence condition]
When jvm is running using G1GC (garbage collector), a graph of Garbage Collection Time is not displayed.
One of the following case corresponds.
・In the case of using Resin Pro 4.0.56 or earlier versions
・-XX:+UseG1GC java start option is set to jvm_args of resin.properties.
・In the case of using Resin Pro 4.0.58 or later versions
・-XX:+UseG1GC java start option is set to jvm_args of resin.properties (It is set as default).
*In the case of using Java 11 and start option which specifies explicit page collector is not set, it might become G1GC.
[Cause]
It is not displayed because the element of G1GC (garbage collector) is not included in graph of Garbage Collection Time.
[Workaround]
Add the element of G1GC (garbage collector) to Resin root folder /conf/health.xml.
The element to add is as follows:
・<meter>JVM|Memory|GC Time|G1 Old Generation</meter>
・<meter>JVM|Memory|GC Time|G1 Young Generation</meter>
Add two elements above to <graph name="Garbage Collection Time (ms)">.
Setting contents after adding are as follows:
<graph name="Garbage Collection Time (ms)">
<meter>JVM|Memory|GC Time|G1 Old Generation</meter>
<meter>JVM|Memory|GC Time|G1 Young Generation</meter>
<meter>JVM|Memory|GC Time|PS MarkSweep</meter>
<meter>JVM|Memory|GC Time|PS Scavenge</meter>
<meter>JVM|Memory|GC Time|ParNew</meter>
<meter>JVM|Memory|GC Time|ConcurrentMarkSweep</meter>
</graph>
[Handling method]
This will be released with next version, Resin Pro.
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FAQID:1025