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Deadlock with Sniffy NIO #387

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bedrin opened this issue Nov 10, 2020 · 0 comments
Closed

Deadlock with Sniffy NIO #387

bedrin opened this issue Nov 10, 2020 · 0 comments
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@bedrin
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bedrin commented Nov 10, 2020


"hz.hz.client_0.IO.thread-out-0@17777" daemon prio=5 tid=0x42 nid=NA waiting for monitor entry

  java.lang.Thread.State: BLOCKED

                blocks hz.client_0.internal-3@17774

                blocks hz.hz.client_0.IO.thread-in-0@17778

                waiting for hz.hz.client_0.IO.thread-in-0@17778 to release lock on <0x45a8> (a java.lang.Object)

                  at io.sniffy.nio.SniffySelector.updateSelectionKeysFromDelegate(SniffySelector.java:187)

                  - locked <0x45a7> (a java.util.WeakHashMap)

                  - locked <0x45a6> (a java.lang.Object)

                  at io.sniffy.nio.SniffySelector.select(SniffySelector.java:219)

                  at com.hazelcast.internal.networking.nio.NioThread.selectLoop(NioThread.java:277)

                  at com.hazelcast.internal.networking.nio.NioThread.run(NioThread.java:234)

 

 

 

 

 

 

"hz.hz.client_0.IO.thread-in-0@17778" daemon prio=5 tid=0x41 nid=NA waiting for monitor entry

 java.lang.Thread.State: BLOCKED

                blocks hz.hz.client_0.IO.thread-out-0@17777

                waiting for hz.hz.client_0.IO.thread-out-0@17777 to release lock on <0x45a6> (a java.lang.Object)

                  at io.sniffy.nio.SniffySelector.register(SniffySelector.java:131)

                  at java.nio.channels.spi.AbstractSelectableChannel.register(AbstractSelectableChannel.java:219)

                  - locked <0x45a9> (a java.lang.Object)

                  - locked <0x45a8> (a java.lang.Object)

                  at com.hazelcast.internal.networking.nio.NioPipeline.getSelectionKey(NioPipeline.java:128)

                  at com.hazelcast.internal.networking.nio.NioPipeline.access$000(NioPipeline.java:37)

                  at com.hazelcast.internal.networking.nio.NioPipeline$1.run0(NioPipeline.java:118)

                  at com.hazelcast.internal.networking.nio.NioPipelineTask.run(NioPipelineTask.java:47)

                  at com.hazelcast.internal.networking.nio.NioThread.processTaskQueue(NioThread.java:340)

                  at com.hazelcast.internal.networking.nio.NioThread.selectLoop(NioThread.java:275)

                  at com.hazelcast.internal.networking.nio.NioThread.run(NioThread.java:234)
@bedrin bedrin added this to the 3.1.8 milestone Nov 10, 2020
bedrin added a commit that referenced this issue Nov 10, 2020
bedrin added a commit that referenced this issue Nov 10, 2020
Reduced synchronization in SniffySelector
bedrin added a commit that referenced this issue Nov 10, 2020
@bedrin bedrin closed this as completed Nov 10, 2020
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