Ryan, Apache mailing list does not allow attachments exceeding a certain size limit, so the server logs is blocked.
>From the controller log it seems this only broker has failed and hence no partitions will be available. This could be a soft failure (e.g. long GC), or the ZK server side issues. You may want to take a look at your controller log to see if there is any entries like "broker failure" before the offline leader selection process. Guozhang On Mon, Aug 11, 2014 at 5:08 PM, Ryan Williams <rwilli...@gmail.com> wrote: > The broker appears to be running > > $ telnet kafka-server 9092 > Trying... > Connected to kafka-server > Escape character is '^]'. > > I've attached today's server.log. There was a manual restart of kafka, > which you'll notice, but that didn't fix the issue. > > Thanks for looking! > > > > > > > > > On Mon, Aug 11, 2014 at 4:30 PM, Guozhang Wang <wangg...@gmail.com> wrote: > >> Hi Ryan, >> >> Could you check if all of your brokers are still live and running? Also >> could you check the server log in addition to the producer / state-change >> / >> controller logs? >> >> Guozhang >> >> >> On Mon, Aug 11, 2014 at 12:45 PM, Ryan Williams <rwilli...@gmail.com> >> wrote: >> >> > I have a single broker test Kafka instance that was running fine on >> Friday >> > (basically out of the box configuration with 2 partitions), now I come >> back >> > on Monday and producers are unable to send messages. >> > >> > What else can i look at to debug, and prevent? >> > >> > I know how to recover by removing data directories for kafka and >> zookeeper >> > to start fresh. But, this isn't the first time this has happened, so I >> > would like to understand it better to feel more comfortable with kafka. >> > >> > >> > =================== >> > Producer error (from console produce) >> > =================== >> > [2014-08-11 19:32:49,781] WARN Error while fetching metadata >> > [{TopicMetadata for topic mytopic -> >> > No partition metadata for topic mytopic due to >> > kafka.common.LeaderNotAvailableException}] for topic [mytopic]: class >> > kafka.common.LeaderNotAvailableException >> > (kafka.producer.BrokerPartitionInfo) >> > [2014-08-11 19:32:49,782] ERROR Failed to collate messages by topic, >> > partition due to: Failed to fetch topic metadata for topic: mytopic >> > (kafka.producer.async.DefaultEventHandler) >> > >> > =============== >> > state-change.log >> > =============== >> > [2014-08-11 19:12:45,312] TRACE Controller 0 epoch 3 started leader >> > election for partition [mytopic,0] (state.change.logger) >> > [2014-08-11 19:12:45,321] ERROR Controller 0 epoch 3 initiated state >> change >> > for partition [mytopic,0] from OfflinePartition to OnlinePartition >> failed >> > (state.change.logger) >> > kafka.common.NoReplicaOnlineException: No replica for partition >> [mytopic,0] >> > is alive. Live brokers are: [Set()], Assigned replicas are: [List(0)] >> > at >> > >> > >> kafka.controller.OfflinePartitionLeaderSelector.selectLeader(PartitionLeaderSelector.scala:61) >> > [2014-08-11 19:12:45,312] TRACE Controller 0 epoch 3 started leader >> > election for partition [mytopic,1] (state.change.logger) >> > [2014-08-11 19:12:45,321] ERROR Controller 0 epoch 3 initiated state >> change >> > for partition [mytopic,1] from OfflinePartition to OnlinePartition >> failed >> > (state.change.logger) >> > kafka.common.NoReplicaOnlineException: No replica for partition >> [mytopic,1] >> > is alive. Live brokers are: [Set()], Assigned replicas are: [List(0)] >> > at >> > >> > >> kafka.controller.OfflinePartitionLeaderSelector.selectLeader(PartitionLeaderSelector.scala:61) >> > >> > =============== >> > controller.log >> > =============== >> > [2014-08-11 19:12:45,308] DEBUG [OfflinePartitionLeaderSelector]: No >> broker >> > in ISR is alive for [mytopic,1]. Pick the leader from the alive assigned >> > replicas: (kafka.controller.OfflinePartitionLeaderSelector) >> > [2014-08-11 19:12:45,321] DEBUG [OfflinePartitionLeaderSelector]: No >> broker >> > in ISR is alive for [mytopic,0]. Pick the leader from the alive assigned >> > replicas: (kafka.controller.OfflinePartitionLeaderSelector) >> > >> >> >> >> -- >> -- Guozhang >> > > -- -- Guozhang