[jira] [Assigned] (IOTDB-854) [Distributed] Limit the memory foorprint of the committed log cache

["Tian Jiang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IOTDB-854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tian Jiang reassigned IOTDB-854:
--------------------------------

    Assignee: Tan xinyu

> [Distributed] Limit the memory foorprint of the committed log cache
> -------------------------------------------------------------------
>
>                 Key: IOTDB-854
>                 URL: https://issues.apache.org/jira/browse/IOTDB-854
>             Project: Apache IoTDB
>          Issue Type: Improvement
>          Components: Core/Cluster
>            Reporter: Tian Jiang
>            Assignee: Tan xinyu
>            Priority: Major
>              Labels: distributed, log-management
>
> Different from other K-V systems using the raft algorithm, Distributed IoTDB store significantly larger amounts of data in a raft log (as data ingestion of IoTDB is usually suggested in a batched manner). As a result, normal log management which concerns the number of log entries may not work very well, and risks in OOM.
> So, it is important that we calculate the memory occupation of committed logs and put a limit on them.



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