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  1. Solr
  2. SOLR-7660

Avoid redundant 'exists' calls made to ZK while fetching cluster state updates

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      Description

      As noted in https://issues.apache.org/jira/browse/SOLR-7636?focusedCommentId=14578332&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14578332

      we have CollectionsHandler -> ZK getChildren (/live_nodes) + ZK read (/clusterstate.json) + ZK getChildren + N * ZK exists (for getIndividualColls) + W * ZK exists + W * getData (for watched collections) + (N-W) * ZK exists + (N-W) * ZK getData (for non-watched collections).

      Some of the ZK exists calls can be avoided without changing the outcome.

        Attachments

        1. SOLR-7660.patch
          4 kB
          Shalin Shekhar Mangar
        2. SOLR-7660.patch
          6 kB
          Shalin Shekhar Mangar

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            • Assignee:
              shalinmangar Shalin Shekhar Mangar
              Reporter:
              shalinmangar Shalin Shekhar Mangar
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                Updated:
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