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From "Shalin Shekhar Mangar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-6554) The overseer node should watch all collections all the time
Date Tue, 23 Sep 2014 17:56:33 GMT
Shalin Shekhar Mangar created SOLR-6554:
-------------------------------------------

             Summary: The overseer node should watch all collections all the time
                 Key: SOLR-6554
                 URL: https://issues.apache.org/jira/browse/SOLR-6554
             Project: Solr
          Issue Type: Improvement
          Components: SolrCloud
    Affects Versions: 5.0, Trunk
            Reporter: Shalin Shekhar Mangar


Right now (after SOLR-5473 was committed), a node watches a collection only if stateFormat=1
or if that node hosts at least one core belonging to that collection.

This means that a node which is the overseer operates on all collections but watches only
a few. So any read goes directly to zookeeper which slows down overseer operations.

Let's have the overseer node watch all collections always and never remove those watches (except
when the collection itself is deleted).



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