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
