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From "Ryne Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-8625) intra broker data balance stuck
Date Wed, 03 Jul 2019 15:02:00 GMT
Ryne Yang created KAFKA-8625:
--------------------------------

             Summary: intra broker data balance stuck
                 Key: KAFKA-8625
                 URL: https://issues.apache.org/jira/browse/KAFKA-8625
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 1.1.1
         Environment: Linux 2.6.32-431.5.1.el6.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux
            Reporter: Ryne Yang


when we used kafka cruise control to invoke kafka's new feature intra broker disk balance,
it did a great work however the process seems to stuck at the last mile. 

we stop seeing more movements meaning the move is done and we do see great balanced results
from our monitoring, but there are some logdirs that are stuck at moving indicated as below
example:
{code:java}
{"partition":"LOGSTASH5-4","size":0,"offsetLag":123189442,"isFuture":true}
{code}
 there are a handful of those partitions on each broker and they seem to be random.

we have waited for days and they don't seem to go away. however we haven't tried to restart
the controller broker yet. 

does anyone know how to solve this and more importantly why did this happen?

so far we've only tried on version 1.1.1. no idea if this got fixed in the later version. 



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