[jira] Commented: (SOLR-2174) commit durring backup of more then 10 seconds causes snapshoot to fail ?

["Hoss Man (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12922247#action_12922247 ] 

Hoss Man commented on SOLR-2174:
--------------------------------

Note: i personally don't fully understand the issue, but i noticed the message was unreplied and had a patch so i wanted to make sure if got tracked in Jira

> commit durring backup of more then 10 seconds causes snapshoot to fail ?
> ------------------------------------------------------------------------
>
>                 Key: SOLR-2174
>                 URL: https://issues.apache.org/jira/browse/SOLR-2174
>             Project: Solr
>          Issue Type: Bug
>          Components: replication (java)
>    Affects Versions: 1.4.1
>            Reporter: Hoss Man
>
> Comment from Peter Sturge in email...
> http://lucene.472066.n3.nabble.com/commitReserveDuration-backups-and-saveCommitPoint-td1407399.html
> {quote}
> In Solr 1.4 and 1.4.1, the SOLR-1475 patch is certainly there, but I don't believe it truly addresses the problem.
> Here's why:
> When a 'backup' command is received by the RemplicationHandler, it creates a SnapShooter instance and asynchronously does a full file snapshot of the current commit point.
> The current commit version to which this refers, however, is set to be cleared on the next commit by the value of 'commitReserveDuration', which, by default, is set to 10secs. (see cleanReserves() in IndexDeletionPolicyWrapper.java).
> If you perform a backup and no commits occur during this time, it's fine, because clearReserves() is not called. If you do get a commit during the backup process, and the backup takes longer than 10secs,
> the whole snapshot operation fails (because delete() doesn't see the commit point in savedCommits - see below).
> {quote}
> Peter's email mentions two patches that he believes will fix this problem

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org