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From "Dinesh Appavoo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ZOOKEEPER-3246) Publish more stats when learner gets a diff, full snapshot, or does a truncate when it connects with the leader
Date Sat, 12 Jan 2019 07:39:00 GMT
Dinesh Appavoo created ZOOKEEPER-3246:
-----------------------------------------

             Summary: Publish more stats when learner gets a diff, full snapshot, or does
a truncate when it connects with the leader
                 Key: ZOOKEEPER-3246
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3246
             Project: ZooKeeper
          Issue Type: New Feature
          Components: other
            Reporter: Dinesh Appavoo


Problem
There is no way to currently tell whether a learner gets a diff or full snapshot, or does
a truncate when it connects with the leader, also how long syncing with the leader takes.
There is no explicit and general indicator of how often a learner has to connect to a leader
without greping through zookeeper.log

Solution
Start tracking and exporting the following three items:
 * counter incremented each time a learner sync's with a leader
 * the type of sync that was needed
 * how long the sync took



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