There’s no simple command. You’ll need to use either zookeeper-shell.sh or zkCli.sh or something similar that lets you explore and edit Zookeeper and do a recursive delete on the group name in the consumers tree. I’m not sure how Cloudera’s interface differs, however, or if they provide a separate tool for deleting a consumer group.
-Todd On Sat, Dec 19, 2015 at 11:34 AM, Akhilesh Pathodia < pathodia.akhil...@gmail.com> wrote: > What is the command to delete group from zookeeper? I dont find > /consumer/ directory? I am using cloudera, is there any place on cloudera > manager where I can delete the group? > > Thanks > > On Sat, Dec 19, 2015 at 11:47 PM, Todd Palino <tpal...@gmail.com> wrote: > > > If what you want to do is reset to smallest, all you need to do is stop > the > > consumer, delete the group from Zookeeper, and restart the consumer. It > > will automatically create the group again. > > > > You only need to export the offsets first if you later need to reset to > > where you were in the partitions. > > > > -Todd > > > > On Saturday, December 19, 2015, Akhilesh Pathodia < > > pathodia.akhil...@gmail.com> wrote: > > > > > What is the process for deleting the consumer group from zookeeper? > > Should > > > I export offset, delete and then import? > > > > > > Thanks, > > > Akhilesh > > > > > > On Fri, Dec 18, 2015 at 11:32 PM, Todd Palino <tpal...@gmail.com > > > <javascript:;>> wrote: > > > > > > > Yes, that’s right. It’s just work for no real gain :) > > > > > > > > -Todd > > > > > > > > On Fri, Dec 18, 2015 at 9:38 AM, Marko Bonaći < > > marko.bon...@sematext.com > > > <javascript:;>> > > > > wrote: > > > > > > > > > Hmm, I guess you're right Tod :) > > > > > Just to confirm, you meant that, while you're changing the exported > > > file > > > > it > > > > > might happen that one of the segment files becomes eligible for > > cleanup > > > > by > > > > > retention, which would then make the imported offsets out of range? > > > > > > > > > > Marko Bonaći > > > > > Monitoring | Alerting | Anomaly Detection | Centralized Log > > Management > > > > > Solr & Elasticsearch Support > > > > > Sematext <http://sematext.com/> | Contact > > > > > <http://sematext.com/about/contact.html> > > > > > > > > > > On Fri, Dec 18, 2015 at 6:29 PM, Todd Palino <tpal...@gmail.com > > > <javascript:;>> wrote: > > > > > > > > > > > That works if you want to set to an arbitrary offset, Marko. > > However > > > in > > > > > the > > > > > > case the OP described, wanting to reset to smallest, it is better > > to > > > > just > > > > > > delete the consumer group and start the consumer with > > > auto.offset.reset > > > > > set > > > > > > to smallest. The reason is that while you can pull the current > > > smallest > > > > > > offsets from the brokers and set them in Zookeeper for the > > consumer, > > > by > > > > > the > > > > > > time you do that the smallest offset is likely no longer valid. > > This > > > > > means > > > > > > you’re going to resort to the offset reset logic anyways. > > > > > > > > > > > > -Todd > > > > > > > > > > > > > > > > > > On Fri, Dec 18, 2015 at 7:10 AM, Marko Bonaći < > > > > marko.bon...@sematext.com <javascript:;> > > > > > > > > > > > > wrote: > > > > > > > > > > > > > You can also do this: > > > > > > > 1. stop consumers > > > > > > > 2. export offsets from ZK > > > > > > > 3. make changes to the exported file > > > > > > > 4. import offsets to ZK > > > > > > > 5. start consumers > > > > > > > > > > > > > > e.g. > > > > > > > bin/kafka-run-class.sh kafka.tools.ExportZkOffsets --group > > > group-name > > > > > > > --output-file /tmp/zk-offsets --zkconnect localhost:2181 > > > > > > > bin/kafka-run-class.sh kafka.tools.ImportZkOffsets --input-file > > > > > > > /tmp/zk-offsets --zkconnect localhost:2181 > > > > > > > > > > > > > > Marko Bonaći > > > > > > > Monitoring | Alerting | Anomaly Detection | Centralized Log > > > > Management > > > > > > > Solr & Elasticsearch Support > > > > > > > Sematext <http://sematext.com/> | Contact > > > > > > > <http://sematext.com/about/contact.html> > > > > > > > > > > > > > > On Fri, Dec 18, 2015 at 4:06 PM, Jens Rantil < > > jens.ran...@tink.se > > > <javascript:;>> > > > > > > wrote: > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > I noticed that a consumer in the new consumer API supports > > > setting > > > > > the > > > > > > > > offset for a partition to beginning. I assume doing so also > > would > > > > > > update > > > > > > > > the offset in Zookeeper eventually. > > > > > > > > > > > > > > > > Cheers, > > > > > > > > Jens > > > > > > > > > > > > > > > > On Friday, December 18, 2015, Akhilesh Pathodia < > > > > > > > > pathodia.akhil...@gmail.com <javascript:;>> > > > > > > > > wrote: > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > I want to reset the kafka offset in zookeeper so that the > > > > consumer > > > > > > will > > > > > > > > > start reading messages from first offset. I am using flume > > as a > > > > > > > consumer > > > > > > > > to > > > > > > > > > kafka. I have set the kafka property > kafka.auto.offset.reset > > to > > > > > > > > "smallest", > > > > > > > > > but it does not reset the offset in zookeeper and that's > why > > > > flume > > > > > > will > > > > > > > > not > > > > > > > > > read messages from first offset. > > > > > > > > > > > > > > > > > > Is there any way to reset kafka offset in zookeeper? > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > Akhilesh > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Jens Rantil > > > > > > > > Backend engineer > > > > > > > > Tink AB > > > > > > > > > > > > > > > > Email: jens.ran...@tink.se <javascript:;> > > > > > > > > Phone: +46 708 84 18 32 > > > > > > > > Web: www.tink.se > > > > > > > > > > > > > > > > Facebook <https://www.facebook.com/#!/tink.se> Linkedin > > > > > > > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > http://www.linkedin.com/company/2735919?trk=vsrp_companies_res_photo&trkInfo=VSRPsearchId%3A1057023381369207406670%2CVSRPtargetId%3A2735919%2CVSRPcmpt%3Aprimary > > > > > > > > > > > > > > > > > Twitter <https://twitter.com/tink> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > *—-* > > > > > > *Todd Palino* > > > > > > Staff Site Reliability Engineer > > > > > > Data Infrastructure Streaming > > > > > > > > > > > > > > > > > > > > > > > > linkedin.com/in/toddpalino > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > *—-* > > > > *Todd Palino* > > > > Staff Site Reliability Engineer > > > > Data Infrastructure Streaming > > > > > > > > > > > > > > > > linkedin.com/in/toddpalino > > > > > > > > > > > > > -- > > *—-* > > *Todd Palino* > > Staff Site Reliability Engineer > > Data Infrastructure Streaming > > > > > > > > linkedin.com/in/toddpalino > > > -- *—-* *Todd Palino* Staff Site Reliability Engineer Data Infrastructure Streaming linkedin.com/in/toddpalino
