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Posted to issues@hbase.apache.org by "Duo Zhang (Jira)" <ji...@apache.org> on 2020/08/25 09:50:00 UTC

[jira] [Updated] (HBASE-24949) Optimize FSTableDescriptors.get to not always go to fs when cache miss

     [ https://issues.apache.org/jira/browse/HBASE-24949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang updated HBASE-24949:
------------------------------
    Component/s: master

> Optimize FSTableDescriptors.get to not always go to fs when cache miss
> ----------------------------------------------------------------------
>
>                 Key: HBASE-24949
>                 URL: https://issues.apache.org/jira/browse/HBASE-24949
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Duo Zhang
>            Priority: Major
>
> Since in the below getAll method, if fsvisited is true, we will just return what we have in cache.
> We should also do this in the get method, if fsvisited is true, we do not need to go to fs any more.
> Another benefit here is that, when executing procedures on master, we do not need to go to meta region any more, we could just check if we have a table descriptor in cache.



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