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https://issues.apache.org/jira/browse/ACCUMULO-1143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592701#comment-13592701
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Keith Turner commented on ACCUMULO-1143:
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I am thinking the best long term solution is to write delete markers for the
METADATA table into the root tablet. This fix will avoid possible future bugs.
Not doing merging minor compactions for the metadata table may not involve any
code changes. Setting table.file.max to a large number for the !METADATA
table should disable merging minor compactions. Could possibly make init do
this.
> unload of METADATA default_tablet with merging minor compactions can lockup
> ---------------------------------------------------------------------------
>
> Key: ACCUMULO-1143
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1143
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.4.0
> Reporter: Eric Newton
> Assignee: Keith Turner
> Priority: Critical
> Fix For: 1.5.0, 1.4.3
>
>
> Unloading the default tablet of the !METADATA table can result in a merging
> minor compaction. This results in a delete marker for the unneeded resulting
> file. The delete marker goes into the default tablet of !METADATA. Which is
> offline while it performs its final minor compaction.
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