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Posted to notifications@iotdb.apache.org by "WangChao (Jira)" <ji...@apache.org> on 2020/04/27 11:07:00 UTC

[jira] [Assigned] (IOTDB-604) [Distributed] More robust cluster readers

     [ https://issues.apache.org/jira/browse/IOTDB-604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

WangChao reassigned IOTDB-604:
------------------------------

    Assignee: WangChao

> [Distributed] More robust cluster readers
> -----------------------------------------
>
>                 Key: IOTDB-604
>                 URL: https://issues.apache.org/jira/browse/IOTDB-604
>             Project: Apache IoTDB
>          Issue Type: Improvement
>          Components: Core/Cluster
>            Reporter: Tian Jiang
>            Assignee: WangChao
>            Priority: Major
>              Labels: cluster, pull-request-available, query, robustness
>
> The current cluster readers only read data from a fixed node so if the targeted node fails, the query is errored and must be retried.
> To improve the robustness of queries, the cluster readers should know the data group to query instead of a single node and it should also remember its current position so that after switching to another node, it will not read duplicated data.



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