Any error in the controller and state-change log?
Thanks,
Jun
On Tue, May 13, 2014 at 9:16 PM, Robin Yamaguchi <ro...@hasoffers.com>wrote:
> 0.8.1.1
>
>
> On Tue, May 13, 2014 at 9:02 PM, Jun Rao <jun...@gmail.com> wrote:
>
> > Which version of Kafka are you using?
> >
> > Thanks,
> >
> > Jun
> >
> >
> > On Tue, May 13, 2014 at 5:56 PM, Robin Yamaguchi <ro...@hasoffers.com
> > >wrote:
> >
> > > It seems like this mailing list wasn't updating through the web
> archives
> > > for a few days last week, so I wanted to send this out again in case it
> > > wasn't seen. My apologies for the repost.
> > >
> > > In further troubleshooting, I've also observed if a broker is shut down
> > > while a connection in is CLOSE_WAIT, this error is generated on the
> > broker
> > > that is still up:
> > >
> > > 2014-05-13 20:57:35,794 - INFO
> > > [ZkClient-EventThread-12-localhost:2181:Logging$class@68] -
> [Controller
> > > 0]: New leader and ISR for partition [Test3,10] is
> > > {"leader":0,"leader_epoch":2,"isr":[0]}
> > > 2014-05-13 20:57:35,796 - WARN
> > > [Controller-0-to-broker-0-send-thread:Logging$class@89] -
> > > [Controller-0-to-broker-0-send-thread], Controller 0 fails to send a
> > > request to broker id:0,host:localhost,port:13000
> > > java.io.EOFException: Received -1 when reading from channel, socket has
> > > likely been closed.
> > > at kafka.utils.Utils$.read(Utils.scala:376)
> > > at
> > >
> > >
> >
> kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54)
> > > at kafka.network.Receive$class.readCompletely(Transmission.scala:56)
> > > at
> > >
> > >
> >
> kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29)
> > > at kafka.network.BlockingChannel.receive(BlockingChannel.scala:100)
> > > at
> > >
> > >
> >
> kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:146)
> > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> > > 2014-05-13 20:57:35,799 - ERROR
> > > [Controller-0-to-broker-0-send-thread:Logging$class@103] -
> > > [Controller-0-to-broker-0-send-thread], Controller 0 epoch 4 failed to
> > send
> > > UpdateMetadata request with correlation id 9 to broker
> > > id:0,host:localhost,port:13000. Reconnecting to broker.
> > > java.nio.channels.ClosedChannelException
> > > at kafka.network.BlockingChannel.send(BlockingChannel.scala:89)
> > > at
> > >
> > >
> >
> kafka.controller.RequestSendThread.liftedTree1$1(ControllerChannelManager.scala:132)
> > > at
> > >
> > >
> >
> kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:131)
> > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> > > 2014-05-13 20:57:35,800 - INFO
> > > [Controller-0-to-broker-0-send-thread:Logging$class@68] -
> > > [Controller-0-to-broker-0-send-thread], Controller 0 connected to
> > > id:0,host:localhost,port:13000 for sending state change requests
> > >
> > >
> > > This WARN is logged for every partition:
> > >
> > > 2014-05-13 20:57:35,806 - WARN
> > > [ZkClient-EventThread-12-localhost:2181:Logging$class@83] - [Channel
> > > manager on controller 0]: Not sending request Name: StopReplicaRequest;
> > > Version: 0; CorrelationId: 9; ClientId: ; DeletePartitions: false;
> > > ControllerId: 0; ControllerEpoch: 4; Partitions: [Test2,8] to broker 1,
> > > since it is offline.
> > >
> > >
> > > This ERROR is then logged for every partition continuously:
> > >
> > > 2014-05-13 20:57:45,839 - INFO [kafka-scheduler-3:Logging$class@68] -
> > > Partition [Test1,6] on broker 0: Shrinking ISR for partition [Test1,6]
> > from
> > > 0,1 to 0
> > > 2014-05-13 20:57:45,841 - ERROR [kafka-scheduler-3:Logging$class@97] -
> > > Conditional update of path /brokers/topics/Test1/partitions/6/state
> with
> > > data
> > >
> {"controller_epoch":4,"leader":0,"version":1,"leader_epoch":3,"isr":[0]}
> > > and expected version 6 failed due to
> > > org.apache.zookeeper.KeeperException$BadVersionException:
> > KeeperErrorCode =
> > > BadVersion for /brokers/topics/Test1/partitions/6/state
> > > 2014-05-13 20:57:45,841 - INFO [kafka-scheduler-3:Logging$class@68] -
> > > Partition [Test1,6] on broker 0: Cached zkVersion [6] not equal to that
> > in
> > > zookeeper, skip updating ISR
> > >
> > >
> > >
> > >
> > > On Thu, May 8, 2014 at 2:19 PM, Robin Yamaguchi <ro...@hasoffers.com>
> > > wrote:
> > >
> > > > Greetings,
> > > >
> > > > I'm looking for some feedback with using advertised.host.name and
> > > > advertised.port on kafka 0.8.1.1 through a load balancer. The
> brokers
> > > are
> > > > fronted with haproxy to support our cluster mirroring configuration.
> > The
> > > > setup has been working as expected, where producers, consumers, and
> > > broker
> > > > connections go through haproxy. I am however sometimes getting
> errors
> > > when
> > > > attempting to create a new topic:
> > > >
> > > > 2014-05-08 19:00:49,757 - WARN
> > > > [Controller-0-to-broker-0-send-thread:Logging$class@89] -
> > > > [Controller-0-to-broker-0-send-thread], Controller 0 fails to send a
> > > > request to broker id:0,host:localhost,port:13000
> > > > java.io.EOFException: Received -1 when reading from channel, socket
> has
> > > > likely been closed.
> > > > at kafka.utils.Utils$.read(Utils.scala:376)
> > > > at
> > > >
> > >
> >
> kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54)
> > > > at kafka.network.Receive$class.readCompletely(Transmission.scala:56)
> > > > at
> > > >
> > >
> >
> kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29)
> > > > at kafka.network.BlockingChannel.receive(BlockingChannel.scala:100)
> > > > at
> > > >
> > >
> >
> kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:146)
> > > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> > > > 2014-05-08 19:00:49,769 - ERROR
> > > > [Controller-0-to-broker-0-send-thread:Logging$class@103] -
> > > > [Controller-0-to-broker-0-send-thread], Controller 0 epoch 2 failed
> to
> > > send
> > > > UpdateMetadata request with correlation id 7 to broker
> > > > id:0,host:localhost,port:13000. Reconnecting to broker.
> > > > java.nio.channels.ClosedChannelException
> > > > at kafka.network.BlockingChannel.send(BlockingChannel.scala:89)
> > > > at
> > > >
> > >
> >
> kafka.controller.RequestSendThread.liftedTree1$1(ControllerChannelManager.scala:132)
> > > > at
> > > >
> > >
> >
> kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:131)
> > > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> > > > 2014-05-08 19:00:49,770 - INFO
> > > > [Controller-0-to-broker-0-send-thread:Logging$class@68] -
> > > > [Controller-0-to-broker-0-send-thread], Controller 0 connected to
> > > > id:0,host:localhost,port:13000 for sending state change requests
> > > >
> > > >
> > > > When receiving this error, the new topic is registered in zookeeper,
> > but
> > > > not written to disk by the broker. The topic however will be written
> > to
> > > > disk the next time the kafka broker is restarted. I did not
> experience
> > > > this behavior in other clusters that are not fronted by a load
> > balancer.
> > > I
> > > > also do not get this error when kafka is initially started.
> > > >
> > > > To help simplify troubleshooting, I setup a single host with kafka,
> > > > zookeeper, and haproxy running on it with these relevant
> > configurations:
> > > >
> > > > Kafka:
> > > > advertised.host.name = localhost
> > > > advertised.port = 13000
> > > >
> > > > Zookeeper:
> > > > port = default
> > > >
> > > > Haproxy:
> > > > listen kafka_13000 0.0.0.0:13000
> > > > mode tcp
> > > > option tcpka
> > > > timeout client 5m
> > > > timeout server 5m
> > > > timeout connect 5m
> > > > server h-kafka01-1b localhost:9092
> > > >
> > > > Here are the network sockets Kafka creates on start-up:
> > > >
> > > > [r...@dp-robin01-dev.sea1.office.priv kafka]# lsof -i -P | grep -i
> > kafka
> > > > java 25532 kafka 18u IPv6 14717680 0t0 TCP *:44398
> > > > (LISTEN)
> > > > java 25532 kafka 23u IPv6 14717684 0t0 TCP
> > > > localhost.localdomain:58093->localhost.localdomain:2181 (ESTABLISHED)
> > > > java 25532 kafka 38u IPv6 14717692 0t0 TCP *:9092
> > > > (LISTEN)
> > > > java 25532 kafka 39u IPv6 14717694 0t0 TCP
> > > > localhost.localdomain:45037->localhost.localdomain:13000
> (ESTABLISHED)
> > > > java 25532 kafka 40u IPv6 14717698 0t0 TCP
> > > > localhost.localdomain:9092->localhost.localdomain:46448 (ESTABLISHED)
> > > >
> > > >
> > > > After the 5m timeout configured in haproxy is surpassed, the
> connection
> > > > through port 13000 is closed (from kafka.log):
> > > >
> > > > 2014-05-08 19:05:40,904 - INFO
> > [kafka-processor-9092-0:Logging$class@68
> > > ]
> > > > - Closing socket connection to /127.0.0.1.
> > > >
> > > >
> > > > Looking again at the network sockets, the controller to broker
> > connection
> > > > is in a CLOSE_WAIT state:
> > > >
> > > > [r...@dp-robin01-dev.sea1.office.priv kafka]# lsof -i -P | grep -i
> > kafka
> > > > java 25532 kafka 18u IPv6 14717680 0t0 TCP *:44398
> > > > (LISTEN)
> > > > java 25532 kafka 23u IPv6 14717684 0t0 TCP
> > > > localhost.localdomain:58093->localhost.localdomain:2181 (ESTABLISHED)
> > > > java 25532 kafka 38u IPv6 14717692 0t0 TCP *:9092
> > > > (LISTEN)
> > > > java 25532 kafka 39u IPv6 14717694 0t0 TCP
> > > > localhost.localdomain:45037->localhost.localdomain:13000 (CLOSE_WAIT)
> > > >
> > > >
> > > > This is when attemping to create a topic will error with:
> > > > java.io.EOFException: Received -1 when reading from channel, socket
> has
> > > > likely been closed.
> > > >
> > > > The linux kernel will remove the socket in a CLOSE_WAIT state after
> the
> > > > tcp keepalive expires, which defaults to 2 hours:
> > > >
> > > > [r...@dp-robin01-dev.sea1.office.priv kafka]# ss -o | grep 13000
> > > > CLOSE-WAIT 1 0 ::ffff:127.0.0.1:45040 ::ffff:
> > > > 127.0.0.1:13000 timer:(keepalive,46sec,0)
> > > >
> > > >
> > > > List of kafka sockets after the controller to broker connection has
> > been
> > > > completely removed:
> > > >
> > > > [r...@dp-robin01-dev.sea1.office.priv kafka]# lsof -i -P | grep -i
> > kafka
> > > > java 25532 kafka 18u IPv6 14717680 0t0 TCP *:44398
> > > > (LISTEN)
> > > > java 25532 kafka 23u IPv6 14717684 0t0 TCP
> > > > localhost.localdomain:58093->localhost.localdomain:2181 (ESTABLISHED)
> > > > java 25532 kafka 38u IPv6 14717692 0t0 TCP *:9092
> > > > (LISTEN)
> > > >
> > > >
> > > > Now when attempting to create a new topic, Kafka detects that the
> > > > controller to broker connection is down, reconnects successfully, and
> > is
> > > > able to write topic to disk:
> > > >
> > > > 2014-05-08 21:02:47,685 - INFO
> > > > [ZkClient-EventThread-12-localhost:2181:Logging$class@68] -
> > [Partition
> > > > state machine on Controller 0]: Invoking state change to
> > OnlinePartition
> > > > for partitions
> > > >
> > >
> >
> [Test2,1],[Test2,14],[Test2,3],[Test2,12],[Test2,0],[Test2,13],[Test2,4],[Test2,6],[Test2,9],[Test2,15],[Test2,2],[Test2,7],[Test2,11],[Test2,5],[Test2,8],[Test2,10]
> > > > 2014-05-08 21:02:47,796 - ERROR
> > > > [Controller-0-to-broker-0-send-thread:Logging$class@103] -
> > > > [Controller-0-to-broker-0-send-thread], Controller 0 epoch 2 failed
> to
> > > send
> > > > LeaderAndIsr request with correlation id 11 to broker
> > > > id:0,host:localhost,port:13000. Reconnecting to broker.
> > > > java.io.IOException: Broken pipe
> > > > at sun.nio.ch.FileDispatcherImpl.writev0(Native Method)
> > > > at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51)
> > > > at sun.nio.ch.IOUtil.write(IOUtil.java:148)
> > > > at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:524)
> > > > at java.nio.channels.SocketChannel.write(SocketChannel.java:493)
> > > > at
> > > >
> > >
> >
> kafka.network.BoundedByteBufferSend.writeTo(BoundedByteBufferSend.scala:56)
> > > > at kafka.network.Send$class.writeCompletely(Transmission.scala:75)
> > > > at
> > > >
> > >
> >
> kafka.network.BoundedByteBufferSend.writeCompletely(BoundedByteBufferSend.scala:26)
> > > > at kafka.network.BlockingChannel.send(BlockingChannel.scala:92)
> > > > at
> > > >
> > >
> >
> kafka.controller.RequestSendThread.liftedTree1$1(ControllerChannelManager.scala:132)
> > > > at
> > > >
> > >
> >
> kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:131)
> > > > at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> > > > 2014-05-08 21:02:47,802 - INFO
> > > > [Controller-0-to-broker-0-send-thread:Logging$class@68] -
> > > > [Controller-0-to-broker-0-send-thread], Controller 0 connected to
> > > > id:0,host:localhost,port:13000 for sending state change requests
> > > >
> > > >
> > > > It seems that the controller isn't able to properly resolve a
> > connection
> > > > in a CLOSE_WAIT state. The exceptions thrown is different from when
> > the
> > > > socket is in a CLOSE_WAIT vs not existing at all.
> > > >
> > > > I can somewhat work around this issue by lowering the kernel tcp
> > > keepalive
> > > > settings and increasing my haproxy timeouts, but thats not very
> > desirable
> > > > and wouldn't work 100% of the time. I've looked through the broker
> > > > configuration documentation, and didn't get any meaningful results
> > > changing
> > > > controller.socket.timeout.ms.
> > > >
> > > > Any feedback / suggestions would be greatly appreciated.
> > > >
> > > > Thank you,
> > > > Robin
> > > >
> > >
> >
>
