[jira] [Created] (FLINK-22050) Failed to release input gate (IllegalReferenceCountException)

["Roman Khachatryan (Jira)" <ji...@apache.org>]

Roman Khachatryan created FLINK-22050:
-----------------------------------------

             Summary: Failed to release input gate (IllegalReferenceCountException)
                 Key: FLINK-22050
                 URL: https://issues.apache.org/jira/browse/FLINK-22050
             Project: Flink
          Issue Type: Bug
    Affects Versions: 1.13.0
            Reporter: Roman Khachatryan


When running UnalignedCheckpointITCase continuously, this error is periodically reported (though tests pass):
{code}
[INFO] Running org.apache.flink.test.checkpointing.UnalignedCheckpointITCase
34948 [Canceler for keyed (19/20)#1 (532afce89e3c90301e37b2f5e9a0bded).] ERROR org.apache.flink.runtime.taskmanager.Task [] - Failed to release input gate for task keyed (19/20)#1.
org.apache.flink.shaded.netty4.io.netty.util.IllegalReferenceCountException: refCnt: 0, decrement: 1
        at org.apache.flink.shaded.netty4.io.netty.util.internal.ReferenceCountUpdater.toLiveRealRefCnt(ReferenceCountUpdater.java:74) ~[flink-shaded-netty-4.1.49.Final-12.0.jar:?]
        at org.apache.flink.shaded.netty4.io.netty.util.internal.ReferenceCountUpdater.release(ReferenceCountUpdater.java:138) ~[flink-shaded-netty-4.1.49.Final-12.0.jar:?]
        at org.apache.flink.shaded.netty4.io.netty.buffer.AbstractReferenceCountedByteBuf.release(AbstractReferenceCountedByteBuf.java:100) ~[flink-shaded-netty-4.1.49.Final-12.0.jar:?]
        at org.apache.flink.runtime.io.network.buffer.NetworkBuffer.recycleBuffer(NetworkBuffer.java:156) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.BufferManager.releaseAllBuffers(BufferManager.java:234) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.releaseAllResources(RemoteInputChannel.java:267) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.close(SingleInputGate.java:555) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.InputGateWithMetrics.close(InputGateWithMetrics.java:119) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.Task.closeNetworkResources(Task.java:978) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.Task$TaskCanceler.run(Task.java:1559) [classes/:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]
38445 [Canceler for keyed (19/20)#2 (f94480c534db164b2cdf7f44682593d1).] ERROR org.apache.flink.runtime.taskmanager.Task [] - Failed to release input gate for task keyed (19/20)#2.
org.apache.flink.shaded.netty4.io.netty.util.IllegalReferenceCountException: refCnt: 0
        at org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.ensureAccessible(AbstractByteBuf.java:1489) ~[flink-shaded-netty-4.1.49.Final-12.0.jar:?]
        at org.apache.flink.runtime.io.network.buffer.NetworkBuffer.getMemorySegment(NetworkBuffer.java:139) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.BufferManager.releaseAllBuffers(BufferManager.java:232) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.releaseAllResources(RemoteInputChannel.java:267) ~[classes/:?]
        at org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.close(SingleInputGate.java:555) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.InputGateWithMetrics.close(InputGateWithMetrics.java:119) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.Task.closeNetworkResources(Task.java:978) ~[classes/:?]
        at org.apache.flink.runtime.taskmanager.Task$TaskCanceler.run(Task.java:1559) [classes/:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]
{code}



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