Hello Chia-Chun Shih, There are multiple issues, First thing is i don't see out of memory error every time and OOM happens after supervisord keep retrying to start kafka. It goes down when it tries to add partition fetcher
it starts with *conflict in /controller data: {"version":1,"brokerid":0,"timestamp":"1421296052741"} stored data: {"version":1,"brokerid":1,"timestamp":"1421291998088"} (kafka.utils.ZkUtils$)* ERROR Conditional update of path /brokers/topics/realtimestreaming/partitions/1/state with data {"controller_epoch":34,"leader":0,"version":1,"leader_epoch":54,"isr":[0]} and expected version 90 failed due to org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /brokers/topics/realtimestreaming/partitions/1/state (kafka.utils.ZkUtils$) and then [ReplicaFetcherManager on broker 0] Removed fetcher for partitions [realtimestreaming,0],[realtimestreaming,1] (kafka.server.ReplicaFetcherManager) [2015-01-15 09:57:34,350] INFO Truncating log realtimestreaming-0 to offset 846. (kafka.log.Log) [2015-01-15 09:57:34,351] INFO Truncating log realtimestreaming-1 to offset 957. (kafka.log.Log) [2015-01-15 09:57:34,650] INFO [ReplicaFetcherManager on broker 0] *Added fetcher for partitions ArrayBuffer([[realtimestreaming,0], initOffset 846 to broker id:1,host:realtimeslave1.novalocal,port:9092] , [[realtimestreaming,1], initOffset 957 to broker id:1,host:realtimeslave1.novalocal,port:9092] ) (kafka.server.ReplicaFetcherManager)* [2015-01-15 09:57:34,654] INFO [ReplicaFetcherThread-0-1], Starting (kafka.server.ReplicaFetcherThread) [2015-01-15 09:57:34,747] INFO [ReplicaFetcherThread-1-1], Starting (kafka.server.ReplicaFetcherThread) [2015-01-15 09:58:14,156] INFO Closing socket connection to /10.0.0.11. (kafka.network.Processor) On Thu, Jan 15, 2015 at 12:01 PM, Chia-Chun Shih <chiachun.s...@gmail.com> wrote: > You can use tools (e.g., VisialVM) to diagnose OOM problem. > > 2015-01-15 14:15 GMT+08:00 Tousif Khazi <tou...@senseforth.com>: > > > i see this error > > > > ERROR [ReplicaFetcherThread-0-1], Error for partition > > [realtimestreaming,1] to broker 1:class > > kafka.common.NotLeaderForPartitionException > > (kafka.server.ReplicaFetcherThread) > > [2015-01-15 10:00:04,348] INFO [ReplicaFetcherManager on broker 0] > > Removed fetcher for partitions [realtimestreaming,1] > > (kafka.server.ReplicaFetcherManager) > > [2015-01-15 10:00:04,355] INFO Closing socket connection to > > /10.0.0.11. (kafka.network.Processor) > > [2015-01-15 10:00:04,444] WARN [KafkaApi-0] Fetch request with > > correlation id 0 from client ReplicaFetcherThread-0-0 on partition > > [realtimestreaming,1] failed due to Leader not local for partition > > [realtimestreaming,1] on broker 0 (kafka.server.KafkaApis) > > [2015-01-15 10:00:04,545] INFO [ReplicaFetcherThread-0-1], Shutting > > down (kafka.server.ReplicaFetcherThread) > > [2015-01-15 10:00:04,848] INFO [ReplicaFetcherThread-0-1], Stopped > > (kafka.server.ReplicaFetcherThread) > > [2015-01-15 10:00:04,849] INFO [ReplicaFetcherThread-0-1], Shutdown > > completed (kafka.server.ReplicaFetcherThread) > > [2015-01-15 10:00:39,256] ERROR Closing socket for /10.0.0.11 because > > of error (kafka.network.Processor) > > java.io.IOException: Connection reset by peer > > at sun.nio.ch.FileDispatcher.read0(Native Method) > > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21) > > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198) > > at sun.nio.ch.IOUtil.read(IOUtil.java:171) > > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:245) > > > > On Wed, Jan 14, 2015 at 10:12 PM, Tousif <tousif.pa...@gmail.com> wrote: > > > Thanks harsha for quick response. > > > I don't see any other error. I used to see replica fetcher error but > > seems > > > to be disappeared after setting replica fetcher threads to 2 as I have > 2 > > > partitions. Some times I see zookeeper session expiration. > > > On Jan 14, 2015 8:02 PM, "Harsha" <ka...@harsha.io> wrote: > > > > > >> Tousif, > > >> Do you see any other errors in server.log > > >> -Harsha > > >> > > >> On Wed, Jan 14, 2015, at 01:51 AM, Tousif wrote: > > >> > Hello, > > >> > > > >> > I have configured kafka nodes to run via supervisord and see > > following > > >> > exceptions > > >> > and eventually brokers going out of memory. i have given enough > memory > > >> > and > > >> > process 1 event/second. kafka goes down every day > > >> > > > >> > i'm wondering what configurastion is missing or need to be added > > >> > > > >> > Here are my cluster details: > > >> > 2 brokers > > >> > 1 zookeeper > > >> > and 2 node apache storm > > >> > > > >> > > > >> > INFO zookeeper state changed (SyncConnected) > > >> > (org.I0Itec.zkclient.ZkClient) > > >> > ERROR Closing socket for /10.0.0.11 because of error > > >> > (kafka.network.Processor) > > >> > java.io.IOException: Connection reset by peer > > >> > at sun.nio.ch.FileDispatcher.read0(Native Method) > > >> > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21) > > >> > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198) > > >> > at sun.nio.ch.IOUtil.read(IOUtil.java:171) > > >> > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:245) > > >> > at kafka.utils.Utils$.read(Utils.scala:375) > > >> > at > > >> > > > >> > > > kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54) > > >> > at kafka.network.Processor.read(SocketServer.scala:347) > > >> > at kafka.network.Processor.run(SocketServer.scala:245) > > >> > at java.lang.Thread.run(Thread.java:662) > > >> > [2015-01-13 23:43:37,962] INFO Closing socket connection to / > > 10.0.0.11. > > >> > (kafka.network.Processor) > > >> > Error occurred during initialization of VM > > >> > Could not reserve enough space for object heap > > >> > Error occurred during initialization of VM > > >> > Could not reserve enough space for object heap > > >> > > > >> > > > >> > > > >> > > > >> > -- > > >> > Regards, > > >> > Tousif > > >> > +918050227279 > > >> > > > >> > > > >> > -- > > >> > > > >> > > > >> > Regards > > >> > Tousif Khazi > > >> > > > > > > > > -- > > Regards, > > Tousif > > +918050227279 > > > -- Regards Tousif Khazi