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ASF GitHub Bot commented on KAFKA-2468: --------------------------------------- GitHub user SinghAsDev opened a pull request: https://github.com/apache/kafka/pull/167 KAFKA-2468: SIGINT during Kafka server startup can leave server deadlocked As we handle exceptions or invalid states in Kafka server by shutting it down, there is no reason to use exit() and not halt() in shutdown itself. You can merge this pull request into a Git repository by running: $ git pull https://github.com/SinghAsDev/kafka KAFKA-2468 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/kafka/pull/167.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #167 ---- commit 6b5954fb2747f9c94289ad4a75873131b7f55d0a Author: asingh <asi...@cloudera.com> Date: 2015-08-25T07:34:42Z KAFKA-2468: SIGINT during Kafka server startup can leave server deadlocked ---- > SIGINT during Kafka server startup can leave server deadlocked > -------------------------------------------------------------- > > Key: KAFKA-2468 > URL: https://issues.apache.org/jira/browse/KAFKA-2468 > Project: Kafka > Issue Type: Bug > Reporter: Ashish K Singh > Assignee: Ashish K Singh > > KafkaServer on receiving a SIGINT will try to shutdown and if this happens > while the server is starting up, it will get into deadlock. > Thread dump after deadlock > {code} > 2015-08-24 22:03:52 > Full thread dump Java HotSpot(TM) 64-Bit Server VM (24.55-b03 mixed mode): > "Attach Listener" daemon prio=5 tid=0x00007fc08e827800 nid=0x5807 waiting on > condition [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "Thread-2" prio=5 tid=0x00007fc08b9de000 nid=0x6b03 waiting for monitor entry > [0x000000011ad3a000] > java.lang.Thread.State: BLOCKED (on object monitor) > at java.lang.Shutdown.exit(Shutdown.java:212) > - waiting to lock <0x00000007bae86ac0> (a java.lang.Class for > java.lang.Shutdown) > at java.lang.Runtime.exit(Runtime.java:109) > at java.lang.System.exit(System.java:962) > at > kafka.server.KafkaServerStartable.shutdown(KafkaServerStartable.scala:46) > at kafka.Kafka$$anon$1.run(Kafka.scala:65) > "SIGINT handler" daemon prio=5 tid=0x00007fc08ca51800 nid=0x6503 in > Object.wait() [0x000000011aa31000] > java.lang.Thread.State: WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > - waiting on <0x00000007bcb40610> (a kafka.Kafka$$anon$1) > at java.lang.Thread.join(Thread.java:1281) > - locked <0x00000007bcb40610> (a kafka.Kafka$$anon$1) > at java.lang.Thread.join(Thread.java:1355) > at > java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:106) > at > java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46) > at java.lang.Shutdown.runHooks(Shutdown.java:123) > at java.lang.Shutdown.sequence(Shutdown.java:167) > at java.lang.Shutdown.exit(Shutdown.java:212) > - locked <0x00000007bae86ac0> (a java.lang.Class for java.lang.Shutdown) > at java.lang.Terminator$1.handle(Terminator.java:52) > at sun.misc.Signal$1.run(Signal.java:212) > at java.lang.Thread.run(Thread.java:745) > "RMI TCP Accept-0" daemon prio=5 tid=0x00007fc08c164000 nid=0x5c07 runnable > [0x0000000119fe8000] > java.lang.Thread.State: RUNNABLE > at java.net.PlainSocketImpl.socketAccept(Native Method) > at > java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) > at java.net.ServerSocket.implAccept(ServerSocket.java:530) > at java.net.ServerSocket.accept(ServerSocket.java:498) > at > sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:52) > at > sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:388) > at > sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:360) > at java.lang.Thread.run(Thread.java:745) > "Service Thread" daemon prio=5 tid=0x00007fc08d015000 nid=0x5503 runnable > [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "C2 CompilerThread1" daemon prio=5 tid=0x00007fc08c82b000 nid=0x5303 waiting > on condition [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "C2 CompilerThread0" daemon prio=5 tid=0x00007fc08c82a000 nid=0x5103 waiting > on condition [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "Signal Dispatcher" daemon prio=5 tid=0x00007fc08c829800 nid=0x4f03 runnable > [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "Surrogate Locker Thread (Concurrent GC)" daemon prio=5 > tid=0x00007fc08d002000 nid=0x400b waiting on condition [0x0000000000000000] > java.lang.Thread.State: RUNNABLE > "Finalizer" daemon prio=5 tid=0x00007fc08d012800 nid=0x3b03 in Object.wait() > [0x0000000117ee6000] > java.lang.Thread.State: WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > - waiting on <0x00000007bae05568> (a java.lang.ref.ReferenceQueue$Lock) > at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135) > - locked <0x00000007bae05568> (a java.lang.ref.ReferenceQueue$Lock) > at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151) > at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:189) > "Reference Handler" daemon prio=5 tid=0x00007fc08c803000 nid=0x3903 in > Object.wait() [0x0000000117de3000] > java.lang.Thread.State: WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > - waiting on <0x00000007bae050f0> (a java.lang.ref.Reference$Lock) > at java.lang.Object.wait(Object.java:503) > at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133) > - locked <0x00000007bae050f0> (a java.lang.ref.Reference$Lock) > "main" prio=5 tid=0x00007fc08d000800 nid=0x1303 waiting for monitor entry > [0x000000010f353000] > java.lang.Thread.State: BLOCKED (on object monitor) > at java.lang.Shutdown.exit(Shutdown.java:212) > - waiting to lock <0x00000007bae86ac0> (a java.lang.Class for > java.lang.Shutdown) > at java.lang.Runtime.exit(Runtime.java:109) > at java.lang.System.exit(System.java:962) > at > kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:35) > at kafka.Kafka$.main(Kafka.scala:69) > at kafka.Kafka.main(Kafka.scala) > "VM Thread" prio=5 tid=0x00007fc08b83b000 nid=0x3703 runnable > "Gang worker#0 (Parallel GC Threads)" prio=5 tid=0x00007fc08d00f800 > nid=0x2103 runnable > "Gang worker#1 (Parallel GC Threads)" prio=5 tid=0x00007fc08b80e000 > nid=0x2303 runnable > "Gang worker#2 (Parallel GC Threads)" prio=5 tid=0x00007fc08c801000 > nid=0x2503 runnable > "Gang worker#3 (Parallel GC Threads)" prio=5 tid=0x00007fc08c801800 > nid=0x2703 runnable > "Gang worker#4 (Parallel GC Threads)" prio=5 tid=0x00007fc08c804000 > nid=0x2903 runnable > "Gang worker#5 (Parallel GC Threads)" prio=5 tid=0x00007fc08c804800 > nid=0x2b03 runnable > "Gang worker#6 (Parallel GC Threads)" prio=5 tid=0x00007fc08c805000 > nid=0x2d03 runnable > "Gang worker#7 (Parallel GC Threads)" prio=5 tid=0x00007fc08c806000 > nid=0x2f03 runnable > "Concurrent Mark-Sweep GC Thread" prio=5 tid=0x00007fc08c806800 nid=0x3503 > runnable > "Gang worker#0 (Parallel CMS Threads)" prio=5 tid=0x00007fc08c0bd800 > nid=0x3103 runnable > "Gang worker#1 (Parallel CMS Threads)" prio=5 tid=0x00007fc08c0be800 > nid=0x3303 runnable > "VM Periodic Task Thread" prio=5 tid=0x00007fc08c155000 nid=0x5d03 waiting on > condition > JNI global references: 239 > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)