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From "Arpan (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (KAFKA-5153) KAFKA Cluster : 0.10.2.0 : Servers Getting disconnected : Service Impacting
Date Sun, 30 Jul 2017 19:31:01 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-5153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106619#comment-16106619
] 

Arpan edited comment on KAFKA-5153 at 7/30/17 7:30 PM:
-------------------------------------------------------

[~dennisxie1992] [~apurva] Yes we are still facing the same issue after changing those parameters
as well. We tried increasing the number of partitions assuming each partition is handling
more traffic causing this issue.

It runs fine for 8-10 days after clean restart and then we come across the same issue. Not
quite sure if this is present only in 0.10/0.11 version [ we upgraded to 0.11 as well thinking
this could have resolved in that but no chance ]




was (Author: arpan.khagram0212@gmail.com):
[~dennisxie1992] Yes we are still facing the same issue after changing those parameters as
well. We tried increasing the number of partitions assuming each partition is handling more
traffic causing this issue.

It runs fine for 8-10 days after clean restart and then we come across the same issue. Not
quite sure if this is present only in 0.10/0.11 version [ we upgraded to 0.11 as well thinking
this could have resolved in that but no chance ]



> KAFKA Cluster : 0.10.2.0 : Servers Getting disconnected : Service Impacting
> ---------------------------------------------------------------------------
>
>                 Key: KAFKA-5153
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5153
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.10.2.0, 0.11.0.0
>         Environment: RHEL 6
> Java Version  1.8.0_91-b14
>            Reporter: Arpan
>            Priority: Critical
>         Attachments: server_1_72server.log, server_2_73_server.log, server_3_74Server.log,
server.properties, ThreadDump_1493564142.dump, ThreadDump_1493564177.dump, ThreadDump_1493564249.dump
>
>
> Hi Team, 
> I was earlier referring to issue KAFKA-4477 because the problem i am facing is similar.
I tried to search the same reference in release docs as well but did not get anything in 0.10.1.1
or 0.10.2.0. I am currently using 2.11_0.10.2.0.
> I am have 3 node cluster for KAFKA and cluster for ZK as well on the same set of servers
in cluster mode. We are having around 240GB of data getting transferred through KAFKA everyday.
What we are observing is disconnect of the server from cluster and ISR getting reduced and
it starts impacting service.
> I have also observed file descriptor count getting increased a bit, in normal circumstances
we have not observed FD count more than 500 but when issue started we were observing it in
the range of 650-700 on all 3 servers. Attaching thread dumps of all 3 servers when we started
facing the issue recently.
> The issue get vanished once you bounce the nodes and the set up is not working more than
5 days without this issue. Attaching server logs as well.
> Kindly let me know if you need any additional information. Attaching server.properties
as well for one of the server (It's similar on all 3 serversP)



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