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From "Yuki Morishita (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CASSANDRA-9097) Repeated incremental nodetool repair results in failed repairs due to running anticompaction
Date Thu, 14 May 2015 22:22:01 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yuki Morishita reopened CASSANDRA-9097:
---------------------------------------

This change still does not fix the issue when there is a failed repair session. Reopening.

> Repeated incremental nodetool repair results in failed repairs due to running anticompaction
> --------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-9097
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9097
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Gustav Munkby
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 2.2 beta 1, 2.1.6
>
>         Attachments: 0001-Wait-for-anticompaction-to-finish.patch
>
>
> I'm trying to synchronize incremental repairs over multiple nodes in a Cassandra cluster,
and it does not seem to easily achievable.
> In principle, the process iterates through the nodes of the cluster and performs `nodetool
-h $NODE repair --incremental`, but that sometimes fails on subsequent nodes. The reason for
failing seems to be that the repair returns as soon as the repair and the _local_ anticompaction
has completed, but does not guarantee that remote anticompactions are complete. If I subsequently
try to issue another repair command, they fail to start (and terminate with failure after
about one minute). It usually isn't a problem, as the local anticompaction typically involves
as much (or more) data as the remote ones, but sometimes not.



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