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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2288) Tserver under heavy ingest dies when unloading many tablets
Date Thu, 30 Jan 2014 18:28:16 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13886873#comment-13886873
] 

Keith Turner commented on ACCUMULO-2288:
----------------------------------------

What was your selection criteria for trimming the logs?  I am curious what the logs related
to compactions look like.  What type of data were you writing?  

> Tserver under heavy ingest dies when unloading many tablets
> -----------------------------------------------------------
>
>                 Key: ACCUMULO-2288
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2288
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.4.4
>         Environment: 4G heap, 6G native map for tserver;
> table.compaction.minor.logs.threshold=6
>            Reporter: Mike Drob
>         Attachments: logs.tar.gz
>
>
> # Create a table
> # Add lots of splits (they'll all be on the same server)
> # Start a heavy ingest load
> # Wait for master to decide to balance
> # When master sends unload requests, tablet server dies.
> It would be good if instead of trying to flush everything at once, the tserver could
go a little bit slower, but stay up. Or at least provide better logging.



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