Opening a table also opens the metatable and never closes it.
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Key: HBASE-5466
URL: https://issues.apache.org/jira/browse/HBASE-5466
Project: HBase
Issue Type: Bug
Components: client
Reporter: Ashley Taylor
Having upgraded to CDH3U3 version of hbase we found we had a zookeeper
connection leak, tracking it down we found that closing the connection will
only close the zookeeper connection if all calls to get the connection have
been closed, there is incCount and decCount in the HConnection class,
When a table is opened it makes a call to the metascanner class which opens a
connection to the meta table, this table never gets closed.
This caused the count in the HConnection class to never return to zero meaning
that the zookeeper connection will not close when we close all the tables or
calling
HConnectionManager.deleteConnection(config, true);
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