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From Anthony Pastor <anth...@stickyads.tv>
Subject Re: Topic migration mentionning one removed server
Date Mon, 09 Feb 2015 10:13:28 GMT
Any help on this subject please ?

2015-02-05 10:45 GMT+01:00 Anthony Pastor <anthony@stickyads.tv>:

> We're using Kafka 0.8.1.1 on debian 7.7
>
> - Logs when i migrate a specific topic (~20GB) from kafka5 to kafka2 (No
> problem that way):
>     - controller.log: No logs.
>
> - Logs when i migrate the same specific topic from kafka2 to kafka5 (same
> problems as my original mail):
>     - controller.log:
>
> [2015-02-05 10:40:18,693] DEBUG [PartitionsReassignedListener on 1]:
> Partitions reassigned listener fired for path /admin/reassign_partitions.
> Record partitions to be reassigned
> {"version":1,"partitions":[{"topic":"AdBidderZoneDealDailyKey","partition":0,"replicas":[4,5]}]}
> (kafka.controller.PartitionsReassignedListener)
> [2015-02-05 10:40:18,695] INFO [Controller 1]: Handling reassignment of
> partition [AdBidderZoneDealDailyKey,0] to new replicas 4,5
> (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,703] INFO [Controller 1]: New replicas 4,5 for
> partition [AdBidderZoneDealDailyKey,0] being reassigned not yet caught up
> with the leader (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,710] DEBUG [Controller 1]: Updated path
> /brokers/topics/AdBidderZoneDealDailyKey with
> {"version":1,"partitions":{"0":[4,5,2]}} for replica assignment
> (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,710] INFO [Controller 1]: Updated assigned replicas
> for partition [AdBidderZoneDealDailyKey,0] being reassigned to 4,5,2
> (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,710] DEBUG [Controller 1]: Updating leader epoch for
> partition [AdBidderZoneDealDailyKey,0]. (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,718] INFO [Controller 1]: Updated leader epoch for
> partition [AdBidderZoneDealDailyKey,0] to 37
> (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,719] INFO [Replica state machine on controller 1]:
> Invoking state change to NewReplica for replicas
> [Topic=AdBidderZoneDealDailyKey,Partition=0,Replica=5]
> (kafka.controller.ReplicaStateMachine)
> [2015-02-05 10:40:18,721] INFO [Controller 1]: Waiting for new replicas
> 4,5 for partition [AdBidderZoneDealDailyKey,0] being reassigned to catch up
> with the leader (kafka.controller.KafkaController)
> [2015-02-05 10:40:18,721] INFO [AddPartitionsListener on 1]: Add Partition
> triggered {"version":1,"partitions":{"0":[4,5,2]}} for path
> /brokers/topics/AdBidderZoneDealDailyKey
> (kafka.controller.PartitionStateMachine$AddPartitionsListener)
> [2015-02-05 10:40:18,723] DEBUG [ReassignedPartitionsIsrChangeListener on
> controller 1]: Reassigned partitions isr change listener fired for path
> /brokers/topics/AdBidderZoneDealDailyKey/partitions/0/state with children
> {"controller_epoch":5,"leader":4,"version":1,"leader_epoch":37,"isr":[4,2]}
> (kafka.controller.ReassignedPartitionsIsrChangeListener)
> [2015-02-05 10:40:18,724] INFO [ReassignedPartitionsIsrChangeListener on
> controller 1]: 1/2 replicas have caught up with the leader for partition
> [AdBidderZoneDealDailyKey,0] being reassigned.Replica(s) 5 still need to
> catch up (kafka.controller.ReassignedPartitionsIsrChangeListener)
> [2015-02-05 10:40:18,852] INFO [AddPartitionsListener on 1]: Add Partition
> triggered {"version":1,"partitions":{"0":[4,5,2,7]}} for path
> /brokers/topics/AdBidderZoneDealDailyKey
> (kafka.controller.PartitionStateMachine$AddPartitionsListener)
>
> 2015-02-05 6:29 GMT+01:00 Jun Rao <jun@confluent.io>:
>
>> Which version of Kafka are you using? Anything interesting from the
>> controller log?
>>
>> Thanks,
>>
>> Jun
>>
>> On Wed, Feb 4, 2015 at 8:19 AM, Anthony Pastor <anthony@stickyads.tv>
>> wrote:
>>
>> > Hello,
>> >
>> > I'm trying to understand an awkward issue we're having on our Kafka
>> > production.
>> > We currently have 8 Kafka servers named:
>> > kafka1, kafka2, kafka3 ...
>> >
>> > Few weeks ago we migrated all topics present on kafka7 and then have
>> > shutdown it.
>> >
>> > The main issue is a performance issue on Kafka5.
>> > Topic migration are very slow.
>> >
>> > Today i tried to do a topic migration from kafka2 to kafka5.
>> > The awkward part is that we've kafka7 references like if it's on
>> > replication on this server :
>> >
>> > Here are my commands & comments:
>> >
>> > - Original state of the topic was :
>> >
>> > $ /usr/share/kafka/bin/kafka-topics.sh --zookeeper 172.16.22.1
>> --describe
>> > --topic AdBidderZoneDealDailyKey
>> > Topic:AdBidderZoneDealDailyKey    PartitionCount:1
>> > ReplicationFactor:2    Configs:retention.ms=604800000
>> >     Topic: AdBidderZoneDealDailyKey    Partition: 0    Leader: 4
>> > Replicas: 4,2    Isr: 4,2
>> >
>> >
>> > - Then i ran a topic migration :
>> >
>> > $ /usr/share/kafka/bin/kafka-reassign-partitions.sh --zookeeper
>> > 172.16.22.1 --reassignment-json-file target-zone-deal-daily.json
>> --execute
>> >
>> > $ cat target-zone-deal-daily.json
>> >
>> >
>> {"version":1,"partitions":[{"topic":"AdBidderZoneDealDailyKey","partition":0,"replicas":[4,5]}]}
>> >
>> >
>> > - Now i've two issues : the replication is very very slow, and i've
>> kafka7
>> > occurence (but we've shutdown this machine few weeks ago when all topic
>> > were migrated to other servers) :
>> >
>> > $ /usr/share/kafka/bin/kafka-topics.sh --zookeeper 172.16.22.1
>> --describe
>> > --topic AdBidderZoneDealDailyKey
>> > Topic:AdBidderZoneDealDailyKey    PartitionCount:1
>> > ReplicationFactor:4    Configs:retention.ms=604800000
>> >     Topic: AdBidderZoneDealDailyKey    Partition: 0    Leader: 4
>> > Replicas: 4,5,2,*7*    Isr: 4,2
>> >
>> >
>> > Does anyone have an idea on our issue please ?
>> >
>> > Regards.
>> >
>> >
>> > --
>> >
>> > Anthony Pastor.
>> >
>> > <http://www.stickyads.tv/>
>> >
>> > [image:
>> >
>> http://www.stickyads.tv/wp-content/uploads/2013/03/StickyADS.tv-Black-Logo-PNG-300x46.png
>> ]
>> > <http://www.stickyads.tv/>
>> > PARIS | *MONTPELLIER* | MADRID | MILAN | HAMBURG | LONDON
>> >
>>
>
>
>
> --
>
> Anthony Pastor.
>
> <http://www.stickyads.tv/>
>
> [image:
> http://www.stickyads.tv/wp-content/uploads/2013/03/StickyADS.tv-Black-Logo-PNG-300x46.png]
> <http://www.stickyads.tv/>
> PARIS | *MONTPELLIER* | MADRID | MILAN | HAMBURG | LONDON
>



-- 

Anthony Pastor.

<http://www.stickyads.tv/>

[image:
http://www.stickyads.tv/wp-content/uploads/2013/03/StickyADS.tv-Black-Logo-PNG-300x46.png]
<http://www.stickyads.tv/>
PARIS | *MONTPELLIER* | MADRID | MILAN | HAMBURG | LONDON

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