Hello Ignite community. We are running Ignite 2.15 in production with JDK 17. We are seeing the following errors and have no idea what is causing it.
Failed to process selector key [ses=GridSelectorNioSessionImpl [worker=DirectNioClientWorker [super=AbstractNioClientWorker [idx=3, bytesRcvd=64732383766, bytesSent=30081901336, bytesRcvd0=0, bytesSent0=0, select=true, super=GridWorker [name=grid-nio-worker-tcp-comm-3, igniteInstanceName=TcpCommunicationSpi, finished=false, heartbeatTs=1699879571052, hashCode=475467093, interrupted=false, runner=grid-nio-worker-tcp-comm-3-#50%TcpCommunicationSpi%]]], writeBuf=java.nio.DirectByteBuffer[pos=0 lim=32768 cap=32768], readBuf=java.nio.DirectByteBuffer[pos=10 lim=282 cap=32768], inRecovery=GridNioRecoveryDescriptor [acked=209920, resendCnt=0, rcvCnt=229599, sentCnt=209938, reserved=true, lastAck=229568, nodeLeft=false, node=TcpDiscoveryNode [id=c8353de9-9cd2-4ae5-bc48-3271c47fffae, consistentId=c8353de9-9cd2-4ae5-bc48-3271c47fffae, addrs=ArrayList [machine1, 127.0.0.1], sockAddrs=null, discPort=0, order=26, intOrder=26, lastExchangeTime=1699691907837, loc=false, ver=2.15.0#20230425-sha1:f98f7f35, isClient=true], connected=true, connectCnt=0, queueLimit=4096, reserveCnt=1, pairedConnections=false], outRecovery=GridNioRecoveryDescriptor [acked=209920, resendCnt=0, rcvCnt=229599, sentCnt=209938, reserved=true, lastAck=229568, nodeLeft=false, node=TcpDiscoveryNode [id=c8353de9-9cd2-4ae5-bc48-3271c47fffae, consistentId=c8353de9-9cd2-4ae5-bc48-3271c47fffae, addrs=ArrayList [machine1, 127.0.0.1], sockAddrs=null, discPort=0, order=26, intOrder=26, lastExchangeTime=1699691907837, loc=false, ver=2.15.0#20230425-sha1:f98f7f35, isClient=true], connected=true, connectCnt=0, queueLimit=4096, reserveCnt=1, pairedConnections=false], closeSocket=true, outboundMessagesQueueSizeMetric=o.a.i.i.processors.metric.impl.LongAdderMetric@69a257d1, super=GridNioSessionImpl [locAddr=/10.129.34.235:47100, rmtAddr=/machine1:42492, createTime=1699700047871, closeTime=0, bytesSent=3311788770, bytesRcvd=23387281236, bytesSent0=0, bytesRcvd0=0, sndSchedTime=1699852982273, lastSndTime=1699879565624, lastRcvTime=1699879571052, readsPaused=false, filterChain=FilterChain[filters=[GridNioCodecFilter [parser=o.a.i.i.util.nio.GridDirectParser@f6e5016, directMode=true], GridConnectionBytesVerifyFilter], accepted=true, markedForClose=false]]] And there is also this stacktrace: j.l.NullPointerException: Cannot invoke "Object.hashCode()" because "key" is null at j.u.c.ConcurrentHashMap.get(ConcurrentHashMap.java:936) at o.a.i.i.m.c.GridIoManager.processOrderedMessage(GridIoManager.java:1707) at o.a.i.i.m.c.GridIoManager.onMessage0(GridIoManager.java:1328) at o.a.i.i.m.c.GridIoManager.access$300(GridIoManager.java:243) at o.a.i.i.m.c.GridIoManager$2.onMessage(GridIoManager.java:509) at o.a.i.s.c.t.TcpCommunicationSpi.notifyListener(TcpCommunicationSpi.java:1220) at o.a.i.s.c.t.TcpCommunicationSpi$1.onMessage(TcpCommunicationSpi.java:689) at o.a.i.s.c.t.TcpCommunicationSpi$1.onMessage(TcpCommunicationSpi.java:687) at o.a.i.s.c.t.i.InboundConnectionHandler.onMessage(InboundConnectionHandler.java:392) at o.a.i.s.c.t.i.InboundConnectionHandler.onMessage(InboundConnectionHandler.java:78) at o.a.i.i.u.n.GridNioFilterChain$TailFilter.onMessageReceived(GridNioFilterChain.java:279) at o.a.i.i.u.n.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109) at o.a.i.i.u.n.GridNioCodecFilter.onMessageReceived(GridNioCodecFilter.java:116) at o.a.i.i.u.n.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109) at o.a.i.i.u.n.GridConnectionBytesVerifyFilter.onMessageReceived(GridConnectionBytesVerifyFilter.java:88) at o.a.i.i.u.n.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109) at o.a.i.i.u.n.GridNioServer$HeadFilter.onMessageReceived(GridNioServer.java:3752) at o.a.i.i.u.n.GridNioFilterChain.onMessageReceived(GridNioFilterChain.java:175) at o.a.i.i.u.n.GridNioServer$DirectNioClientWorker.processRead(GridNioServer.java:1379) at o.a.i.i.u.n.GridNioServer$AbstractNioClientWorker.processSelectedKeysOptimized(GridNioServer.java:2526) at o.a.i.i.u.n.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:2281) at o.a.i.i.u.n.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1910) at o.a.i.i.u.w.GridWorker.run(GridWorker.java:125) at java.lang.Thread.run(Thread.java:833) We are using the following flags: "-XX:+AlwaysPreTouch", "-XX:+UseG1GC", "-XX:+ScavengeBeforeFullGC", "-XX:+DisableExplicitGC", "-XX:MaxMetaspaceSize=640m", "-Djava.net.preferIPv4Stack=true", "-DIGNITE_QUIET=false", "-DIGNITE_UPDATE_NOTIFIER=false", "-DIGNITE_WAIT_FOR_BACKUPS_ON_SHUTDOWN=true", "--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED", "--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED", "--add-opens=java.base/sun.nio.ch=ALL-UNNAMED", "--add-opens=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED", "--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED", "--add-opens=java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED", "--add-opens=java.base/java.io=ALL-UNNAMED", "--add-opens=java.base/java.nio=ALL-UNNAMED", "--add-opens=java.base/java.util=ALL-UNNAMED", "--add-opens=java.base/java.util.concurrent=ALL-UNNAMED", "--add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED", "--add-opens=java.base/java.lang=ALL-UNNAMED", "--add-opens=java.base/java.time=ALL-UNNAMED", "--add-opens=java.base/java.lang.invoke=ALL-UNNAMED" Is there anything I'm missing? The error is happening on a server node, but looks like the remote address is a client node? I see isClient = true in the message. What does it mean and what can we do to fix it? Humphrey
