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https://issues.apache.org/jira/browse/HBASE-10089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13846341#comment-13846341
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Jean-Marc Spaggiari commented on HBASE-10089:
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Ran some tests...
bash script doing create table with 15 regions, disable, drop. 1000 times.
338m22s without the patch.
338m13s with the patch.
Did not faced any OOME.
I think most of those 338 minutes are spent on the shell more than the create
table... Should I try with a client api call with HBaseAdmin to try to do that
faster? I can do 10 threads, create/disable/drop too. And see.
Just ask ;)
JM
> Metrics intern table names cause eventual permgen OOM in 0.94
> -------------------------------------------------------------
>
> Key: HBASE-10089
> URL: https://issues.apache.org/jira/browse/HBASE-10089
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.0, 0.94.14
> Reporter: Dave Latham
> Assignee: Ted Yu
> Priority: Minor
> Fix For: 0.94.15
>
> Attachments: 10089-0.94.txt
>
>
> As part of the metrics system introduced in HBASE-4768 there are two places
> that hbase uses String interning ( SchemaConfigured and SchemaMetrics ).
> This includes interning table names. We have long running environment where
> we run regular integration tests on our application using hbase. Those tests
> create and drop tables with new names regularly. These leads to filling up
> the permgen with interned table names. Workaround is to periodically restart
> the region servers.
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