Keith Turner created ACCUMULO-1049:
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Summary: Master does not need to get tserver lock
Key: ACCUMULO-1049
URL: https://issues.apache.org/jira/browse/ACCUMULO-1049
Project: Accumulo
Issue Type: Bug
Components: master
Affects Versions: 1.4.0
Reporter: Keith Turner
Assignee: Eric Newton
Every tserver has a lock in zookeeper. The master tries to get this lock and
when it does it assumes the tserver is dead. It seems like this may no longer
be necessary since changes made in 1.3. The master used to only keep track of
ip and port to identify a tablet server. It needed to know when it got the
lock to detect the difference between two tablet server instances at the same
ip and port.
Since 1.3 the master keeps distinctive info about a tablet server now and can
detect the difference between tablet server instances. Making the master just
monitor the current tablet server locks instead of trying to get the lock would
simplify the master code.
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