[jira] [Created] (FLUME-2812) Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.Error: Maximum permit count exceeded

["Rollin Crittendon (JIRA)" <ji...@apache.org>]

Rollin Crittendon created FLUME-2812:
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             Summary: Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.Error: Maximum permit count exceeded
                 Key: FLUME-2812
                 URL: https://issues.apache.org/jira/browse/FLUME-2812
             Project: Flume
          Issue Type: Bug
          Components: Channel, Sinks+Sources
    Affects Versions: v1.6.0
         Environment: **OS INFO**
CentOS release 6.6 (Final)
Kernel \r on an \m

**JAVA INFO**
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
            Reporter: Rollin Crittendon
            Priority: Critical


We are finding that around after an hour or so of heavy processing of Flume data in an agent we are getting the following exception.  This is after processing about 5-7 k lines/second during that time.

The configuration of this agent is using a Kafka source, the one that comes with 1.6.0. 

It is also using a Memory channel, and a Thrift sink.

=======
Exception in thread "SinkRunner-PollingRunner-DefaultSinkProcessor" java.lang.Error: Maximum permit count exceeded
	at java.util.concurrent.Semaphore$Sync.tryReleaseShared(Semaphore.java:192)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1341)
	at java.util.concurrent.Semaphore.release(Semaphore.java:609)
	at org.apache.flume.channel.MemoryChannel$MemoryTransaction.doCommit(MemoryChannel.java:147)
	at org.apache.flume.channel.BasicTransactionSemantics.commit(BasicTransactionSemantics.java:151)
	at org.apache.flume.sink.AbstractRpcSink.process(AbstractRpcSink.java:379)
	at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
	at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
	at java.lang.Thread.run(Thread.java:745)
=======

It sounds like something in JDK 7+ got stricter?!



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