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Posted to notifications@iotdb.apache.org by "Xinyu Tan (Jira)" <ji...@apache.org> on 2021/03/08 09:18:00 UTC

[jira] [Created] (IOTDB-1186) Remove redundant sync meta leader in query process for cluster module

Xinyu Tan created IOTDB-1186:
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             Summary: Remove redundant sync meta leader in query process for cluster module
                 Key: IOTDB-1186
                 URL: https://issues.apache.org/jira/browse/IOTDB-1186
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: Core/Cluster
            Reporter: Xinyu Tan


Currently, the coordinator will create one remoteSeriesReader for each timeseries if the timeseries belongs to other nodes, and the coordinator will try to perform a sync meta leader in each remoteSeriesReader's initManagedSeriesReader function, which cost a lot of network overhead.

Actually, we can just sync meta leader once for one query.



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