Sorry, am a newbie myself, I was adding to the scenario where broker has gone down and not come up when replication is 1, and a new leader is elected, it will be the leader for this topic/partition, but if other broker is down, it might not have the offsets?
On Sat, Aug 13, 2016 at 1:22 PM, Sudev A C <sudev...@goibibo.com> wrote: > No why wouldn't the partition come back ? > Before preferred election there was leader serving the requests > during election when it tries to elect the preferred leader and the > preferred leader happens not to be in in ISR, fallback to leader leader > happens. After this producing/consuming from this partition fails. > > On Sunday 14 August 2016, R Krishna <krishna...@gmail.com> wrote: > > > But, isn't that assuming your topics are replicated to all brokers, in > your > > case there are no offsets probably for this reason too. > > > > On Fri, Aug 12, 2016 at 2:23 PM, Zakee <kzak...@netzero.net > <javascript:;>> > > wrote: > > > > > Typically "preferred leader election” would fail if/when one or more > > > brokers still did not come back online after being down for some time. > Is > > > that your scenario? > > > > > > -Zakee > > > > > > > On Aug 11, 2016, at 12:42 AM, Sudev A C <sudev...@goibibo.com > > <javascript:;>> wrote: > > > > > > > > Hi, > > > > > > > > With *auto.leader.rebalance.enable=true* Kafka runs preferred > election > > > tool > > > > in regular intervals rebalancing topic-partition leaders. Now if > > > preferred > > > > election fails to elect the preferred leader for a topic partition it > > > falls > > > > back to any other leader in ISR. > > > > > > > > But for us in production when this happens, the newly elected leader > > > fails > > > > to serve/produce messages anymore. If you describe the topic the > latest > > > > offset shown is *0* but a leader is shown. > > > > > > > > My current fix is to restart the controller broker. > > > > 1. New controller comes up..fresh preferred election happens . > > > > 2. During this time around offsets comes back to a number from zero. > > > > > > > > Log - http://pastebin.com/raw/qeBnNPA6# > > > > Kafka Version - 0.9.1 > > > > > > > > Should I turn off auto.leader.rebalance or can I work around this > > > problem. > > > > Any suggestions ? > > > > Why would offset go to zero ? > > > > > > > > -- > > > > Thanks > > > > Sudev Ambadi > > > > > > > > > ____________________________________________________________ > > > Affordable Wireless Plans > > > Set up is easy. Get online in minutes. > > > Starting at only $14.95 per month! > > > www.netzero.net?refcd=nzmem0216 > > > > > > > > > > > -- > > Radha Krishna, Proddaturi > > 253-234-5657 > > > > > -- > Thanks > Sudev A C > Data Team > -- Radha Krishna, Proddaturi 253-234-5657
