Stefan Egli created OAK-1759:
--------------------------------
Summary: Sporadic IllegalStateException in
AbstractServiceTracker.getServices
Key: OAK-1759
URL: https://issues.apache.org/jira/browse/OAK-1759
Project: Jackrabbit Oak
Issue Type: Bug
Components: core
Affects Versions: 0.20
Reporter: Stefan Egli
Seeing the below IlegalStateException about tracker being null several times on
a 4-node oak-mongo cluster. There were no log.warn 'Timed out waiting for
change processor to stop' near those errors (but there was once hour(s) before
in one case).
{code}16.04.2014 05:34:50.908 *ERROR* [oak-executor-1619]
org.apache.sling.extensions.threaddump.internal.Activator Uncaught exception in
Thread Thread[oak-executor-1619,1,Configuration
Admin Service]
java.lang.IllegalStateException: null
at
com.google.common.base.Preconditions.checkState(Preconditions.java:134)
at
org.apache.jackrabbit.oak.spi.whiteboard.AbstractServiceTracker.getServices(AbstractServiceTracker.java:60)
at
org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardExecutor.execute(WhiteboardExecutor.java:40)
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1.run(BackgroundObserver.java:130)
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$ListenableFutureTask.run(BackgroundObserver.java:283)
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$ListenableFutureTask.done(BackgroundObserver.java:278)
at java.util.concurrent.FutureTask$Sync.innerSet(FutureTask.java:281)
at java.util.concurrent.FutureTask.set(FutureTask.java:141)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:339)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
{code}
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