[jira] [Resolved] (CASSANDRA-2290) Repair hangs if one of the neighbor is dead

["Sylvain Lebresne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sylvain Lebresne resolved CASSANDRA-2290.
-----------------------------------------

    Resolution: Fixed

> Repair hangs if one of the neighbor is dead
> -------------------------------------------
>
>                 Key: CASSANDRA-2290
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2290
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.6
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 0.7.5, 0.8
>
>         Attachments: 0001-Don-t-start-repair-if-a-neighbor-is-dead.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Repair don't cope well with dead/dying neighbors. There is 2 problems:
>   # Repair don't check if a node is dead before sending a TreeRequest; this is easily fixable.
>   # If a neighbor dies mid-repair, the repair will also hang forever.
> The second point is not easy to deal with. The best approach is probably CASSANDRA-1740 however. That is, if we add a way to query the state of a repair, and that this query correctly check all neighbors and also add a way to cancel a repair, this would probably be enough.

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