The version of kafka is 0.8.1.1.
The controller log shows the controller starting up complete with no warn or
error message. And we could not find the state-change log belong to the day we
restart the broker. I found some error message in broker 0's log when i
restart the broker 2. I am not sure whether it is related or not.
[2015-02-16 11:10:11,869] INFO Partition [wx_rtdc_EventTrackData_bolt2,8] on
broker 0: Shrinking ISR for partition [wx_rtdc_EventTrackData_bolt2,8] from
0,2,1 to 0,2 (kafka.cluster.Partition)[2015-02-16 11:10:11,878] ERROR
Conditional update of path
/brokers/topics/wx_rtdc_EventTrackData_bolt2/partitions/8/state with data
{"controller_epoch":36,"leader":0,"version":1,"leader_epoch":0,"isr":[0,2]} and
expected version 0 failed due to
org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode =
BadVersion for /brokers/topics/wx_rtdc_EventTrackData_bolt2/partitions/8/state
(kafka.utils.ZkUtils$)[2015-02-16 11:10:11,878] INFO Partition
[wx_rtdc_EventTrackData_bolt2,8] on broker 0: Cached zkVersion [0] not equal to
that in zookeeper, skip updating ISR (kafka.cluster.Partition)
Thanks> Date: Thu, 26 Feb 2015 13:11:24 -0800
> Subject: Re: broker restart problems
> From: j...@confluent.io
> To: users@kafka.apache.org
>
> Right, you need to look into why the restarted broker is not sync-ed up.
> Any error in the controller and state-change log? Also, what version of
> Kafka are you on?
>
> Thanks,
>
> Jun
>
> On Wed, Feb 25, 2015 at 5:46 PM, ZhuGe <t...@outlook.com> wrote:
>
> > we did not have this setting in the property file, so it should be false.
> > BTW, it this command means periodically invoking 'preferred replica leader
> > election tool'?and how should i solve the "out of syn" problem of the
> > broker?
> > > Date: Wed, 25 Feb 2015 16:09:42 -0800
> > > Subject: Re: broker restart problems
> > > From: kzak...@netzero.net
> > > To: users@kafka.apache.org
> > >
> > > Do you have the property auto.leader.rebalance.enable=true set in
> > brokers?
> > >
> > > Thanks
> > > -Zakee
> > >
> > > On Tue, Feb 24, 2015 at 11:47 PM, ZhuGe <t...@outlook.com> wrote:
> > >
> > > > Hi all:We have a cluster of 3 brokers(id : 0,1,2). We restart(simply
> > use
> > > > stop.sh and start.sh in bin directory) broker 1. The broker started
> > > > successfully. However, all the partitions' leader moved to other
> > brokers
> > > > and no data were written into broker 2. This is the status of one
> > > > topic:Topic:wx_rtdc_flumesinks PartitionCount:12
> > > > ReplicationFactor:3 Configs: Topic: wx_rtdc_flumesinks
> > > > Partition: 0 Leader: 2 Replicas: 1,2,0 Isr: 2,0 Topic:
> > > > wx_rtdc_flumesinks Partition: 1 Leader: 2 Replicas:
> > 2,0,1
> > > > Isr: 2,0 Topic: wx_rtdc_flumesinks Partition: 2
> > Leader: 0
> > > > Replicas: 0,1,2 Isr: 0,2 Topic: wx_rtdc_flumesinks
> > > > Partition: 3 Leader: 0 Replicas: 1,0,2 Isr: 0,2 Topic:
> > > > wx_rtdc_flumesinks Partition: 4 Leader: 2 Replicas:
> > 2,1,0
> > > > Isr: 2,0 Topic: wx_rtdc_flumesinks Partition: 5
> > Leader: 0
> > > > Replicas: 0,2,1 Isr: 0,2 Topic: wx_rtdc_flumesinks
> > > > Partition: 6 Leader: 2 Replicas: 1,2,0 Isr: 2,0 Topic:
> > > > wx_rtdc_flumesinks Partition: 7 Leader: 2 Replicas:
> > 2,0,1
> > > > Isr: 2,0 Topic: wx_rtdc_flumesinks Partition: 8
> > Leader: 0
> > > > Replicas: 0,1,2 Isr: 0,2 Topic: wx_rtdc_flumesinks
> > > > Partition: 9 Leader: 0 Replicas: 1,0,2 Isr: 0,2 Topic:
> > > > wx_rtdc_flumesinks Partition: 10 Leader: 2 Replicas:
> > 2,1,0
> > > > Isr: 2,0 Topic: wx_rtdc_flumesinks Partition: 11
> > Leader: 0
> > > > Replicas: 0,2,1 Isr: 0,2
> > > > It seems the broker is out of synchronize with other brokers. and
> > nothing
> > > > changed after i run preferred replication leader election tool. i
> > think it
> > > > is because the preferred replication is not in Isr, which is described
> > in
> > > > the wiki of replication tool.
> > > > I want to know how to synchronize the replications of 3 brokers so that
> > > > the broker 1 could work properly.any help would be appreciated.
> > > > ____________________________________________________________
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> >
> >
