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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-3547) TabletServer clears cache after bulk import analysis
Date Fri, 30 Jan 2015 21:37:35 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Newton resolved ACCUMULO-3547.
-----------------------------------
    Resolution: Fixed

> TabletServer clears cache after bulk import analysis
> ----------------------------------------------------
>
>                 Key: ACCUMULO-3547
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3547
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1
>         Environment: Very large cluster
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Blocker
>             Fix For: 1.6.2, 1.7.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Tablet servers get told to analyze bulk files and hand them to other bulk importers.
 Every time it succeeds, it clears the tablet location cache.
> On our large system, we load thousands of bulk files. After every cache clear, the zookeeper
needs to be consulted, followed by the root tablet, followed by the metadata tablet.  This
is putting a great deal of pressure on some constrained resources, especially the root tablet.



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