I also tried changing the broker id to a new id: 5 and still got many many similar warnings and no data generated in log.dir.
[2014-01-21 18:00:00,923] WARN [KafkaApi-5] Fetch request with correlation id 1528423082 from client ReplicaFetcherThread-0-1 on partition [co,9] failed due to Partition [co,9] doesn't exist on 5 (kafka.server.KafkaApis) [2014-01-21 18:00:00,924] WARN [Replica Manager on Broker 5]: While recording the follower position, the partition [co,4] hasn't been created, skip updating leader HW (kafka.server.ReplicaManager) 2014/1/22 Xiao Bo <xiaob...@gmail.com> > Thanks for reply. Yes, the broker id is the same. > We have tried just restarting the broker, but after 1 day there were still > no partition files generated in the log.dir and by list-topic I could not > see broker-1 back. Any other way can I add it back ? > As I said in last mail, the topic seems having only 2 replicas for all > partitions on alive brokers, what's the reason ? > > > 2014/1/22 Jun Rao <jun...@gmail.com> > >> If you keep the broker id the same, you don't need to use the >> reassign-partitions tool to add the failed broker back to the cluster. Just >> restart the broker and it should catch up with the leader. Once it's fully >> caught up, you can run the rebalance leader tool to move some leaders back >> to the failed broker. >> >> Thanks, >> >> Jun >> >> >> On Tue, Jan 21, 2014 at 8:24 PM, Xiao Bo <xiaob...@gmail.com> wrote: >> >>> Hi guys and jun, >>> >>> We have a problem when adding a breakdown broker back to the cluster. >>> Hope you guys have some solution for it. >>> >>> A cluster of 5 brokers(id=0~4) of kafka 0.8.0 was running for log >>> aggregation . Because of some issues of the disk, a broker(id=1) was down. >>> We spent one week to replace the disk, so we don't have any old data. When >>> adding the brokers back and using kafka-reassign-partitions.sh tool to >>> receive partition data from the up-to-date leaders, we have so many >>> warnings in server.log as shown below and no partition data files generated >>> in log.dirs. >>> >>> >>> [2014-01-15 20:00:00,519] WARN [Replica Manager on Broker 1]: While >>> recording the follower position, the partition [co,4] hasn't been created, >>> skip updating leader HW (kafka.server.ReplicaManager) >>> >>> [2014-01-15 20:00:00,519] WARN [Replica Manager on Broker 1]: While >>> recording the follower position, the partition [co,9] hasn't been created, >>> skip updating leader HW (kafka.server.ReplicaManager) >>> >>> [2014-01-15 20:00:00,519] WARN [KafkaApi-1] Fetch request with >>> correlation id 359929003 from client ReplicaFetcherThread-0-1 on partition >>> [co,4] failed due to Partition [co,4] doesn't exist on 1 >>> (kafka.server.KafkaApis) >>> >>> [2014-01-15 20:00:00,519] WARN [KafkaApi-1] Fetch request with >>> correlation id 359929003 from client ReplicaFetcherThread-0-1 on partition >>> [co,9] failed due to Partition [co,9] doesn't exist on 1 >>> (kafka.server.KafkaApis) >>> >>> [2014-01-15 >>> >>> And it seems an another issue in the listing topics result. Previously >>> we had configured 3 replica for the topic, but now there are only 2 >>> replicas for all the partitions and alive brokers. >>> >>> topic: countinfo partition: 0 leader: 4 replicas: 3,4 isr: 4,3 >>> >>> topic: countinfo partition: 1 leader: 0 replicas: 4,0 isr: 0,4 >>> >>> topic: countinfo partition: 2 leader: 0 replicas: 0,2 isr: 0,2 >>> >>> topic: countinfo partition: 3 leader: 2 replicas: 2,3 isr: 2,3 >>> >>> topic: countinfo partition: 4 leader: 3 replicas: 3,0 isr: 3,0 >>> >>> topic: countinfo partition: 5 leader: 4 replicas: 4,2 isr: 4,2 >>> >>> topic: countinfo partition: 6 leader: 0 replicas: 0,3 isr: 0,3 >>> >>> topic: countinfo partition: 7 leader: 4 replicas: 2,4 isr: 4,2 >>> >>> topic: countinfo partition: 8 leader: 2 replicas: 3,2 isr: 2,3 >>> >>> topic: countinfo partition: 9 leader: 3 replicas: 4,3 isr: 3,4 >>> >>> So my question is: how can I re-add the breakdown broker back and make >>> the replicas to be 3 again ? >>> >>> Thanks in advance. >>> >>> >>> -- >>> Best Wishes, >>> >>> Bo >>> >> >> > > > -- > Best Wishes, > > Bo > -- Best Wishes, Bo
