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https://issues.apache.org/jira/browse/HBASE-4355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ming Ma resolved HBASE-4355.
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Resolution: Not A Problem
After I increase ulimit on the machine, the issue goes away. Perhaps test code
needs to validate machine config before running.
> TestHTablePool failure
> ----------------------
>
> Key: HBASE-4355
> URL: https://issues.apache.org/jira/browse/HBASE-4355
> Project: HBase
> Issue Type: Bug
> Reporter: Ming Ma
> Assignee: Ming Ma
>
> This unit test has been failing on my machine with the following error.
> testTableWithStringName(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool):
> Cluster already running at
> /hbase-core-trunk/target/test-data/2e41efb9-7b96-4ab3-abec-c58f467b220c/af01017e-ee3c-46fc-b908-078a3a4e8b52/bfd8e9b4-66da-4322-96bd-6db4564d8f41/d9a97e3d-8ffb-4945-a71e-d059e3bc7274/6cdf0b73-b9a0-45f4-856d-53cd02ecebce/34c41612-9311-4199-9902-cf30a9cb7b9d/33e7bfd5-2519-4349-9a44-d05000e00526/dbc60fd9-756d-4263-9ed1-bbff69ec7a80/0e1bde7e-c966-4c3e-a01c-50ded9cb166b/415e8d51-46f2-4d50-879a-870298a9e1f8/fb165bb9-7d6c-4cf8-970a-e281b9818e97
> It looks like TestHTablePool uses nested classes TestHTableReusablePool and
> TestHTableThreadLocalPool. Both classes could be instantiated by junit
> framework in mulitple threads fashion. Both classes call
> HBaseTestingUtilility.startMiniCluster.
> HBaseTestingUtilility.isRunningCluster throws this exception.
> Is the understanding about junit framework correctly? I don't know why others
> haven't got such error.
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