Automatic preferred leader election hasn¹t been turned on in 0.8.1.1. It¹s been turned on in latest trunk though.
The config name is ³auto.leader.rebalance.enable". Jiangjie (Becket) Qin On 5/13/15, 10:50 AM, "Stephen Armstrong" <stephen.armstr...@linqia.com> wrote: >Does anyone have any insight into this? Am I correct that 0.8.1.1 should >be >running the leader election automatically? If this is a known issue, is >there any reason not to have a cron script that runs the leader election >regularly? > >Thanks >Steve > >On Thu, May 7, 2015 at 2:47 PM, Stephen Armstrong < >stephen.armstr...@linqia.com> wrote: > >> I'm running 2.10-0.8.1.1, and rebalance will not trigger on it's own. >>From >> >>http://grokbase.com/t/kafka/users/14bj5ps9hp/partition-auto-rebalance#201 >>41118rf39q8cs4sjh6vzjgdw92e37cw >> I think the leader imbalance means: For a single broker, add up all the >> partitions it is leading (Y), and count the ones for which it's not the >> preferred broker (X). The ratio of X:Y is the one being used. >> >> I have about 10 topics spread between the 3 brokers, each with 4 or 8 >> partitions. If I restart broker A, wait 5 min, then restart B, >>leadership >> ends up entirely on C (even though A was in ISR when B went down). >>Nothing >> triggers on it's own. Triggering it manually works (with >> bin/kafka-preferred-replica-election.sh). >> >> Is there something I should be checking, or is there a downside to just >> adding a cron job to trigger replica election once an hour? >> >> Thanks >> Steve >> >> >> >> > > >-- >Stephen Armstrong >Senior Software Engineer >Linqia, Inc - Matching Marketers with Storytellers > >www.linqia.com >Like <http://www.facebook.com/linqia> | Follow ><https://twitter.com/#%21/linqia> | Blog <http://www.linqia.com/blog/> > >Email. stephen.armstr...@linqia.com > >The information in this e-mail and in any attachments is confidential and >solely for the attention and use of the named addressee(s). You are hereby >notified that any dissemination, distribution or copy of this >communication >is prohibited without the prior written consent of Linqia, Inc. If you >have >received this communication in error, please, notify the sender >immediately >by reply e-mail and delete this e-mail from your system as well as any >files transmitted with it.
