[jira] [Created] (RATIS-705) GrpcClientProtocolClient#close throws InterruptedException

["Lokesh Jain (Jira)" <ji...@apache.org>]

Lokesh Jain created RATIS-705:
---------------------------------

             Summary: GrpcClientProtocolClient#close throws InterruptedException
                 Key: RATIS-705
                 URL: https://issues.apache.org/jira/browse/RATIS-705
             Project: Ratis
          Issue Type: Bug
            Reporter: Lokesh Jain
            Assignee: Lokesh Jain


GrpcClientProtocolClient#close throws InterruptedException. This happens when GrpcClientProtocolClient#close is called from a TimeoutScheduler thread. GrpcClientProtocolClient#close calls scheduler.close() which interrupts all the timeout scheduler threads including the thread executing the close routine. This leads to InterruptedException when channel.awaitTermination is called.

 
{code:java}
19/10/09 07:40:33 ERROR client.GrpcClientProtocolClient: Unexpected exception while waiting for channel termination
java.lang.InterruptedException
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1326)
        at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:277)
        at org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelImpl.awaitTermination(ManagedChannelImpl.java:763)
        at org.apache.ratis.thirdparty.io.grpc.internal.ForwardingManagedChannel.awaitTermination(ForwardingManagedChannel.java:57)
        at org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelOrphanWrapper.awaitTermination(ManagedChannelOrphanWrapper.java:70)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient.close(GrpcClientProtocolClient.java:146)
        at org.apache.ratis.util.PeerProxyMap$PeerAndProxy.lambda$close$1(PeerProxyMap.java:74)
        at org.apache.ratis.util.LifeCycle.lambda$checkStateAndClose$2(LifeCycle.java:231)
        at org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:251)
        at org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:229)
        at org.apache.ratis.util.PeerProxyMap$PeerAndProxy.close(PeerProxyMap.java:70)
        at org.apache.ratis.util.PeerProxyMap.resetProxy(PeerProxyMap.java:127)
        at org.apache.ratis.util.PeerProxyMap.handleException(PeerProxyMap.java:136)
        at org.apache.ratis.client.impl.RaftClientRpcWithProxy.handleException(RaftClientRpcWithProxy.java:47)
        at org.apache.ratis.client.impl.RaftClientImpl.handleIOException(RaftClientImpl.java:372)
        at org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:236)
        at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870)
        at java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852)
        at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
        at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$timeoutCheck$3(GrpcClientProtocolClient.java:324)
        at java.util.Optional.ifPresent(Optional.java:159)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.handleReplyFuture(GrpcClientProtocolClient.java:329)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.timeoutCheck(GrpcClientProtocolClient.java:324)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$onNext$1(GrpcClientProtocolClient.java:318)
        at org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:113)
        at org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:133)
        at org.apache.ratis.util.LogUtils.runAndLog(LogUtils.java:50)
        at org.apache.ratis.util.LogUtils$1.run(LogUtils.java:91)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
{code}
 

 



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