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Bug
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Resolution: Unresolved
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Minor
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metrics plugin 4.0.2.6
We faced problem described in https://github.com/dropwizard/metrics/pull/1654
Under heavy load web intarface hangs and all threads that handles http requests are stuck in waiting state until restart with the same stacktrace:
Handling GET /jenkins/job/somejob/1251 from 10.18.172.22 : Jetty (winstone)-815006" #815006 prio=5 os_prio=0 tid=0x00007f44d0128800 nid=0x4fdc waiting on condition [0x00007f43e989a000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000242204970> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) at java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(ReentrantReadWriteLock.java:943) at com.codahale.metrics.ExponentiallyDecayingReservoir.lockForRescale(ExponentiallyDecayingReservoir.java:197) at com.codahale.metrics.ExponentiallyDecayingReservoir.rescale(ExponentiallyDecayingReservoir.java:164) at com.codahale.metrics.ExponentiallyDecayingReservoir.rescaleIfNeeded(ExponentiallyDecayingReservoir.java:122) at com.codahale.metrics.ExponentiallyDecayingReservoir.update(ExponentiallyDecayingReservoir.java:94) at com.codahale.metrics.ExponentiallyDecayingReservoir.update(ExponentiallyDecayingReservoir.java:84) at com.codahale.metrics.Histogram.update(Histogram.java:41) at com.codahale.metrics.Timer.update(Timer.java:185) at com.codahale.metrics.Timer.update(Timer.java:89) at com.codahale.metrics.Timer$Context.stop(Timer.java:36) at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:127) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:157) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:159) .......
I hope update of dropwizard metrics library up to 4.1.13 helps
Version 4.2.10-386.v1c612ef0355c of the Metrics plugin was released in July 2022. Comparing v4.2.10 to v4.1.13 shows that 4.2.10 includes everything that was in 4.1.13. brainsam, can you still reproduce the issue with this plugin version or a later one?