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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-3119) [rest] publish endpoint and statistics into ZooKeeper
Date Mon, 18 Oct 2010 21:42:29 GMT
[rest] publish endpoint and statistics into ZooKeeper

                 Key: HBASE-3119
                 URL: https://issues.apache.org/jira/browse/HBASE-3119
             Project: HBase
          Issue Type: Improvement
          Components: rest
            Reporter: Andrew Purtell
            Assignee: Andrew Purtell

This change allows the REST interface to publish its endpoint and metrics, currently only
requests/sec, into ZooKeeper. By default a permanent znode tree is created as needed at {{/hbase/rest/status}}
and Stargate instances create ephemeral children of this with names in the format {{<host>:<port>}}.
The ephemeral znodes contain JSON serialized information about the instance, e.g.


The function of Stargate itself is not affected, except for one significant change: now if
the ZooKeeper service is lost, the Stargate instances will abort along with the rest of HBase.

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