[
https://issues.apache.org/jira/browse/RATIS-706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mukul Kumar Singh updated RATIS-706:
------------------------------------
Description:
I started an Ozone cluster on Kubernetes and started a freon test (ozone freon
ockg -n10000)
After a while I found that the one freon instance is not creating keys any
more. I checked the om RPC endpoint with ozone insight and no RPC messages has
been arrived.
Based on the jstack output we have a deadlock between
PeerProxyMap.handleException and GrpcClientRpc.sendRequestAsync.
I am not sure (yet) what is the exact problem, but based on the stack traces It
seems to be Ratis related.
{code}
Found one Java-level deadlock:
=============================
"pool-2-thread-6":
waiting to lock monitor 0x00007f80356c8800 (object 0x000000033eb70a00, a
java.lang.Object),
which is held by
"java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
queue]"
"java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
queue]":
waiting to lock monitor 0x0000000001170980 (object 0x000000033eb99b10, a
org.apache.ratis.util.SlidingWindow$Client),
which is held by
"java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
queue]"
"java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
queue]":
waiting to lock monitor 0x00007f80356c8800 (object 0x000000033eb70a00, a
java.lang.Object),
which is held by
"java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
queue]"
Java stack information for the threads listed above:
===================================================
"pool-2-thread-6":
at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:103)
- waiting to lock <0x000000033eb70a00> (a java.lang.Object)
at
org.apache.ratis.grpc.client.GrpcClientRpc.sendRequestAsyncUnordered(GrpcClientRpc.java:78)
at
org.apache.ratis.client.impl.UnorderedAsync.sendRequestWithRetry(UnorderedAsync.java:75)
at
org.apache.ratis.client.impl.UnorderedAsync.send(UnorderedAsync.java:59)
at
org.apache.ratis.client.impl.RaftClientImpl.sendWatchAsync(RaftClientImpl.java:139)
at
org.apache.hadoop.hdds.scm.XceiverClientRatis.watchForCommit(XceiverClientRatis.java:282)
at
org.apache.hadoop.hdds.scm.storage.CommitWatcher.watchForCommit(CommitWatcher.java:198)
at
org.apache.hadoop.hdds.scm.storage.CommitWatcher.watchOnLastIndex(CommitWatcher.java:161)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.watchForCommit(BlockOutputStream.java:346)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.handleFlush(BlockOutputStream.java:482)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.close(BlockOutputStream.java:496)
at
org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry.close(BlockOutputStreamEntry.java:143)
at
org.apache.hadoop.ozone.client.io.KeyOutputStream.handleFlushOrClose(KeyOutputStream.java:435)
at
org.apache.hadoop.ozone.client.io.KeyOutputStream.close(KeyOutputStream.java:473)
at
org.apache.hadoop.ozone.client.io.OzoneOutputStream.close(OzoneOutputStream.java:60)
- locked <0x00000003f2ba4240> (a
org.apache.hadoop.ozone.client.io.OzoneOutputStream)
at
org.apache.hadoop.ozone.freon.RandomKeyGenerator.createKey(RandomKeyGenerator.java:710)
at
org.apache.hadoop.ozone.freon.RandomKeyGenerator.access$1100(RandomKeyGenerator.java:88)
at
org.apache.hadoop.ozone.freon.RandomKeyGenerator$ObjectCreator.run(RandomKeyGenerator.java:615)
at
java.util.concurrent.Executors$RunnableAdapter.call(java.base@11.0.3/Executors.java:515)
at
java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
"java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
queue]":
at
org.apache.ratis.util.SlidingWindow$Client.resetFirstSeqNum(SlidingWindow.java:348)
- waiting to lock <0x000000033eb99b10> (a
org.apache.ratis.util.SlidingWindow$Client)
at
org.apache.ratis.client.impl.OrderedAsync.resetSlidingWindow(OrderedAsync.java:121)
at
org.apache.ratis.client.impl.OrderedAsync$$Lambda$496/0x0000000840498440.accept(Unknown
Source)
at
org.apache.ratis.client.impl.RaftClientImpl.lambda$handleIOException$6(RaftClientImpl.java:349)
at
org.apache.ratis.client.impl.RaftClientImpl$$Lambda$427/0x00000008402e1840.accept(Unknown
Source)
at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
at
org.apache.ratis.client.impl.RaftClientImpl.handleIOException(RaftClientImpl.java:349)
at
org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:236)
at
org.apache.ratis.client.impl.OrderedAsync$$Lambda$358/0x00000008402d7040.apply(Unknown
Source)
at
java.util.concurrent.CompletableFuture.uniExceptionally(java.base@11.0.3/CompletableFuture.java:986)
at
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(java.base@11.0.3/CompletableFuture.java:970)
at
java.util.concurrent.CompletableFuture.postComplete(java.base@11.0.3/CompletableFuture.java:506)
at
java.util.concurrent.CompletableFuture.completeExceptionally(java.base@11.0.3/CompletableFuture.java:2088)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.completeReplyExceptionally(GrpcClientProtocolClient.java:345)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.close(GrpcClientProtocolClient.java:334)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.access$400(GrpcClientProtocolClient.java:261)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient.lambda$close$1(GrpcClientProtocolClient.java:141)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$$Lambda$435/0x00000008402d1c40.accept(Unknown
Source)
at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient.close(GrpcClientProtocolClient.java:141)
at
org.apache.ratis.util.PeerProxyMap$PeerAndProxy.lambda$close$1(PeerProxyMap.java:74)
at
org.apache.ratis.util.PeerProxyMap$PeerAndProxy$$Lambda$430/0x00000008402e1440.run(Unknown
Source)
at
org.apache.ratis.util.LifeCycle.lambda$checkStateAndClose$2(LifeCycle.java:231)
at
org.apache.ratis.util.LifeCycle$$Lambda$433/0x00000008402d1040.get(Unknown
Source)
at
org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:251)
at
org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:229)
at
org.apache.ratis.util.PeerProxyMap$PeerAndProxy.close(PeerProxyMap.java:70)
- locked <0x000000008c1ba0e8> (a
org.apache.ratis.util.PeerProxyMap$PeerAndProxy)
at org.apache.ratis.util.PeerProxyMap.resetProxy(PeerProxyMap.java:127)
- locked <0x000000033eb70a00> (a java.lang.Object)
at
org.apache.ratis.util.PeerProxyMap.handleException(PeerProxyMap.java:136)
at
org.apache.ratis.client.impl.RaftClientRpcWithProxy.handleException(RaftClientRpcWithProxy.java:47)
at
org.apache.ratis.client.impl.RaftClientImpl.handleIOException(RaftClientImpl.java:372)
at
org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:236)
at
org.apache.ratis.client.impl.OrderedAsync$$Lambda$358/0x00000008402d7040.apply(Unknown
Source)
at
java.util.concurrent.CompletableFuture.uniExceptionally(java.base@11.0.3/CompletableFuture.java:986)
at
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(java.base@11.0.3/CompletableFuture.java:970)
at
java.util.concurrent.CompletableFuture.postComplete(java.base@11.0.3/CompletableFuture.java:506)
at
java.util.concurrent.CompletableFuture.completeExceptionally(java.base@11.0.3/CompletableFuture.java:2088)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$timeoutCheck$3(GrpcClientProtocolClient.java:324)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers$$Lambda$490/0x000000084049f040.accept(Unknown
Source)
at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$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$1(GrpcClientProtocolClient.java:318)
at
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers$$Lambda$336/0x00000008403b2040.run(Unknown
Source)
at
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:113)
at
org.apache.ratis.util.TimeoutScheduler$$Lambda$345/0x00000008403ac440.accept(Unknown
Source)
at
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:133)
at
org.apache.ratis.util.TimeoutScheduler$$Lambda$349/0x00000008403a1440.run(Unknown
Source)
at
org.apache.ratis.util.LogUtils$1$$Lambda$448/0x00000008402d6840.run(Unknown
Source)
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(java.base@11.0.3/Executors.java:515)
at
java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(java.base@11.0.3/ScheduledThreadPoolExecutor.java:304)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
"java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
queue]":
at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:103)
- waiting to lock <0x000000033eb70a00> (a java.lang.Object)
at
org.apache.ratis.grpc.client.GrpcClientRpc.sendRequestAsync(GrpcClientRpc.java:66)
at
org.apache.ratis.client.impl.OrderedAsync.sendRequest(OrderedAsync.java:208)
at
org.apache.ratis.client.impl.OrderedAsync.sendRequestWithRetry(OrderedAsync.java:169)
at
org.apache.ratis.client.impl.OrderedAsync$$Lambda$449/0x00000008402d6c40.accept(Unknown
Source)
at
org.apache.ratis.util.SlidingWindow$Client.sendOrDelayRequest(SlidingWindow.java:278)
at
org.apache.ratis.util.SlidingWindow$Client.retry(SlidingWindow.java:294)
- locked <0x000000033eb99b10> (a
org.apache.ratis.util.SlidingWindow$Client)
at
org.apache.ratis.client.impl.OrderedAsync.lambda$scheduleWithTimeout$7(OrderedAsync.java:195)
at
org.apache.ratis.client.impl.OrderedAsync$$Lambda$444/0x00000008402d4840.run(Unknown
Source)
at
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:113)
at
org.apache.ratis.util.TimeoutScheduler$$Lambda$345/0x00000008403ac440.accept(Unknown
Source)
at
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:133)
at
org.apache.ratis.util.TimeoutScheduler$$Lambda$349/0x00000008403a1440.run(Unknown
Source)
at
org.apache.ratis.util.LogUtils$1$$Lambda$448/0x00000008402d6840.run(Unknown
Source)
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(java.base@11.0.3/Executors.java:515)
at
java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(java.base@11.0.3/ScheduledThreadPoolExecutor.java:304)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
Found 1 deadlock.
{code}
was:
I started an Ozone cluster on Kubernetes and started a freon test (ozone freon
ockg -n10000)
After a while I found that the one freon instance is not creating keys any
more. I checked the om RPC endpoint with ozone insight and no RPC messages has
been arrived.
Based on the jstack output we have a deadlock between
PeerProxyMap.handleException and GrpcClientRpc.sendRequestAsync.
I am not sure (yet) what is the exact problem, but based on the stack traces It
seems to be Ratis related.
> Dead lock in GrpcClientRpc
> --------------------------
>
> Key: RATIS-706
> URL: https://issues.apache.org/jira/browse/RATIS-706
> Project: Ratis
> Issue Type: Bug
> Components: gRPC
> Reporter: Marton Elek
> Priority: Major
> Attachments: jstack.txt
>
>
> I started an Ozone cluster on Kubernetes and started a freon test (ozone
> freon ockg -n10000)
> After a while I found that the one freon instance is not creating keys any
> more. I checked the om RPC endpoint with ozone insight and no RPC messages
> has been arrived.
> Based on the jstack output we have a deadlock between
> PeerProxyMap.handleException and GrpcClientRpc.sendRequestAsync.
> I am not sure (yet) what is the exact problem, but based on the stack traces
> It seems to be Ratis related.
> {code}
> Found one Java-level deadlock:
> =============================
> "pool-2-thread-6":
> waiting to lock monitor 0x00007f80356c8800 (object 0x000000033eb70a00, a
> java.lang.Object),
> which is held by
> "java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
> queue]"
> "java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
> queue]":
> waiting to lock monitor 0x0000000001170980 (object 0x000000033eb99b10, a
> org.apache.ratis.util.SlidingWindow$Client),
> which is held by
> "java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
> queue]"
> "java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
> queue]":
> waiting to lock monitor 0x00007f80356c8800 (object 0x000000033eb70a00, a
> java.lang.Object),
> which is held by
> "java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
> queue]"
> Java stack information for the threads listed above:
> ===================================================
> "pool-2-thread-6":
> at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:103)
> - waiting to lock <0x000000033eb70a00> (a java.lang.Object)
> at
> org.apache.ratis.grpc.client.GrpcClientRpc.sendRequestAsyncUnordered(GrpcClientRpc.java:78)
> at
> org.apache.ratis.client.impl.UnorderedAsync.sendRequestWithRetry(UnorderedAsync.java:75)
> at
> org.apache.ratis.client.impl.UnorderedAsync.send(UnorderedAsync.java:59)
> at
> org.apache.ratis.client.impl.RaftClientImpl.sendWatchAsync(RaftClientImpl.java:139)
> at
> org.apache.hadoop.hdds.scm.XceiverClientRatis.watchForCommit(XceiverClientRatis.java:282)
> at
> org.apache.hadoop.hdds.scm.storage.CommitWatcher.watchForCommit(CommitWatcher.java:198)
> at
> org.apache.hadoop.hdds.scm.storage.CommitWatcher.watchOnLastIndex(CommitWatcher.java:161)
> at
> org.apache.hadoop.hdds.scm.storage.BlockOutputStream.watchForCommit(BlockOutputStream.java:346)
> at
> org.apache.hadoop.hdds.scm.storage.BlockOutputStream.handleFlush(BlockOutputStream.java:482)
> at
> org.apache.hadoop.hdds.scm.storage.BlockOutputStream.close(BlockOutputStream.java:496)
> at
> org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry.close(BlockOutputStreamEntry.java:143)
> at
> org.apache.hadoop.ozone.client.io.KeyOutputStream.handleFlushOrClose(KeyOutputStream.java:435)
> at
> org.apache.hadoop.ozone.client.io.KeyOutputStream.close(KeyOutputStream.java:473)
> at
> org.apache.hadoop.ozone.client.io.OzoneOutputStream.close(OzoneOutputStream.java:60)
> - locked <0x00000003f2ba4240> (a
> org.apache.hadoop.ozone.client.io.OzoneOutputStream)
> at
> org.apache.hadoop.ozone.freon.RandomKeyGenerator.createKey(RandomKeyGenerator.java:710)
> at
> org.apache.hadoop.ozone.freon.RandomKeyGenerator.access$1100(RandomKeyGenerator.java:88)
> at
> org.apache.hadoop.ozone.freon.RandomKeyGenerator$ObjectCreator.run(RandomKeyGenerator.java:615)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(java.base@11.0.3/Executors.java:515)
> at
> java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
> at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
> "java.util.concurrent.ThreadPoolExecutor$Worker@77329f41[State = -1, empty
> queue]":
> at
> org.apache.ratis.util.SlidingWindow$Client.resetFirstSeqNum(SlidingWindow.java:348)
> - waiting to lock <0x000000033eb99b10> (a
> org.apache.ratis.util.SlidingWindow$Client)
> at
> org.apache.ratis.client.impl.OrderedAsync.resetSlidingWindow(OrderedAsync.java:121)
> at
> org.apache.ratis.client.impl.OrderedAsync$$Lambda$496/0x0000000840498440.accept(Unknown
> Source)
> at
> org.apache.ratis.client.impl.RaftClientImpl.lambda$handleIOException$6(RaftClientImpl.java:349)
> at
> org.apache.ratis.client.impl.RaftClientImpl$$Lambda$427/0x00000008402e1840.accept(Unknown
> Source)
> at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
> at
> org.apache.ratis.client.impl.RaftClientImpl.handleIOException(RaftClientImpl.java:349)
> at
> org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:236)
> at
> org.apache.ratis.client.impl.OrderedAsync$$Lambda$358/0x00000008402d7040.apply(Unknown
> Source)
> at
> java.util.concurrent.CompletableFuture.uniExceptionally(java.base@11.0.3/CompletableFuture.java:986)
> at
> java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(java.base@11.0.3/CompletableFuture.java:970)
> at
> java.util.concurrent.CompletableFuture.postComplete(java.base@11.0.3/CompletableFuture.java:506)
> at
> java.util.concurrent.CompletableFuture.completeExceptionally(java.base@11.0.3/CompletableFuture.java:2088)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.completeReplyExceptionally(GrpcClientProtocolClient.java:345)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.close(GrpcClientProtocolClient.java:334)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.access$400(GrpcClientProtocolClient.java:261)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient.lambda$close$1(GrpcClientProtocolClient.java:141)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$$Lambda$435/0x00000008402d1c40.accept(Unknown
> Source)
> at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient.close(GrpcClientProtocolClient.java:141)
> at
> org.apache.ratis.util.PeerProxyMap$PeerAndProxy.lambda$close$1(PeerProxyMap.java:74)
> at
> org.apache.ratis.util.PeerProxyMap$PeerAndProxy$$Lambda$430/0x00000008402e1440.run(Unknown
> Source)
> at
> org.apache.ratis.util.LifeCycle.lambda$checkStateAndClose$2(LifeCycle.java:231)
> at
> org.apache.ratis.util.LifeCycle$$Lambda$433/0x00000008402d1040.get(Unknown
> Source)
> at
> org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:251)
> at
> org.apache.ratis.util.LifeCycle.checkStateAndClose(LifeCycle.java:229)
> at
> org.apache.ratis.util.PeerProxyMap$PeerAndProxy.close(PeerProxyMap.java:70)
> - locked <0x000000008c1ba0e8> (a
> org.apache.ratis.util.PeerProxyMap$PeerAndProxy)
> at org.apache.ratis.util.PeerProxyMap.resetProxy(PeerProxyMap.java:127)
> - locked <0x000000033eb70a00> (a java.lang.Object)
> at
> org.apache.ratis.util.PeerProxyMap.handleException(PeerProxyMap.java:136)
> at
> org.apache.ratis.client.impl.RaftClientRpcWithProxy.handleException(RaftClientRpcWithProxy.java:47)
> at
> org.apache.ratis.client.impl.RaftClientImpl.handleIOException(RaftClientImpl.java:372)
> at
> org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:236)
> at
> org.apache.ratis.client.impl.OrderedAsync$$Lambda$358/0x00000008402d7040.apply(Unknown
> Source)
> at
> java.util.concurrent.CompletableFuture.uniExceptionally(java.base@11.0.3/CompletableFuture.java:986)
> at
> java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(java.base@11.0.3/CompletableFuture.java:970)
> at
> java.util.concurrent.CompletableFuture.postComplete(java.base@11.0.3/CompletableFuture.java:506)
> at
> java.util.concurrent.CompletableFuture.completeExceptionally(java.base@11.0.3/CompletableFuture.java:2088)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$timeoutCheck$3(GrpcClientProtocolClient.java:324)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers$$Lambda$490/0x000000084049f040.accept(Unknown
> Source)
> at java.util.Optional.ifPresent(java.base@11.0.3/Optional.java:183)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.handleReplyFuture(GrpcClientProtocolClient.java:329)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.timeoutCheck(GrpcClientProtocolClient.java:324)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$onNext$1(GrpcClientProtocolClient.java:318)
> at
> org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers$$Lambda$336/0x00000008403b2040.run(Unknown
> Source)
> at
> org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:113)
> at
> org.apache.ratis.util.TimeoutScheduler$$Lambda$345/0x00000008403ac440.accept(Unknown
> Source)
> at
> org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:133)
> at
> org.apache.ratis.util.TimeoutScheduler$$Lambda$349/0x00000008403a1440.run(Unknown
> Source)
> at
> org.apache.ratis.util.LogUtils$1$$Lambda$448/0x00000008402d6840.run(Unknown
> Source)
> at org.apache.ratis.util.LogUtils.runAndLog(LogUtils.java:50)
> at org.apache.ratis.util.LogUtils$1.run(LogUtils.java:91)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(java.base@11.0.3/Executors.java:515)
> at
> java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(java.base@11.0.3/ScheduledThreadPoolExecutor.java:304)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
> at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
> "java.util.concurrent.ThreadPoolExecutor$Worker@df368f8[State = -1, empty
> queue]":
> at org.apache.ratis.util.PeerProxyMap.getProxy(PeerProxyMap.java:103)
> - waiting to lock <0x000000033eb70a00> (a java.lang.Object)
> at
> org.apache.ratis.grpc.client.GrpcClientRpc.sendRequestAsync(GrpcClientRpc.java:66)
> at
> org.apache.ratis.client.impl.OrderedAsync.sendRequest(OrderedAsync.java:208)
> at
> org.apache.ratis.client.impl.OrderedAsync.sendRequestWithRetry(OrderedAsync.java:169)
> at
> org.apache.ratis.client.impl.OrderedAsync$$Lambda$449/0x00000008402d6c40.accept(Unknown
> Source)
> at
> org.apache.ratis.util.SlidingWindow$Client.sendOrDelayRequest(SlidingWindow.java:278)
> at
> org.apache.ratis.util.SlidingWindow$Client.retry(SlidingWindow.java:294)
> - locked <0x000000033eb99b10> (a
> org.apache.ratis.util.SlidingWindow$Client)
> at
> org.apache.ratis.client.impl.OrderedAsync.lambda$scheduleWithTimeout$7(OrderedAsync.java:195)
> at
> org.apache.ratis.client.impl.OrderedAsync$$Lambda$444/0x00000008402d4840.run(Unknown
> Source)
> at
> org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:113)
> at
> org.apache.ratis.util.TimeoutScheduler$$Lambda$345/0x00000008403ac440.accept(Unknown
> Source)
> at
> org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:133)
> at
> org.apache.ratis.util.TimeoutScheduler$$Lambda$349/0x00000008403a1440.run(Unknown
> Source)
> at
> org.apache.ratis.util.LogUtils$1$$Lambda$448/0x00000008402d6840.run(Unknown
> Source)
> 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(java.base@11.0.3/Executors.java:515)
> at
> java.util.concurrent.FutureTask.run(java.base@11.0.3/FutureTask.java:264)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(java.base@11.0.3/ScheduledThreadPoolExecutor.java:304)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.3/ThreadPoolExecutor.java:1128)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.3/ThreadPoolExecutor.java:628)
> at java.lang.Thread.run(java.base@11.0.3/Thread.java:834)
> Found 1 deadlock.
> {code}
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