[jira] [Commented] (ACCUMULO-3021) Limit size of split rows

["David Medinets (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ACCUMULO-3021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14075104#comment-14075104 ] 

David Medinets commented on ACCUMULO-3021:
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What do you mean by 'very large split row'? I can think of several different definitions for this phrase. 

> Limit size of split rows
> ------------------------
>
>                 Key: ACCUMULO-3021
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3021
>             Project: Accumulo
>          Issue Type: Improvement
>    Affects Versions: 1.4.0
>            Reporter: Keith Turner
>             Fix For: 1.7.0
>
>
> Just ran into an issue where a very large split row was added to Accumulo.  The large split row caused the metadata table to split and was pushed up into the root tablet.   This caused the root tablet to become unresponsive as many clients and tservers tried to scan the root tablet.  Had to write a custom utility for 1.4 to fix this.
> I am curious if 1.5 would have been able to merge it away.  Even if 1.5 could merge it away, the root tablet becoming unresponsive was really bad.  It took a lot of poking and proding to get the system to anything.  It would be best to avoid this situation altogether.
> Could make the max split size configurable.  This config would be used to limit automatic and user added splits.



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