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From "Samarth Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4701) Improve schema of SYSTEM.LOG table
Date Wed, 25 Apr 2018 00:51:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16451462#comment-16451462
] 

Samarth Jain commented on PHOENIX-4701:
---------------------------------------

I haven't closely looked at the original commit, [~jamestaylor]. But do you think we can run
into some kind of infinite loop by using the Phoenix API for writing to the SYSTEM.LOG table?
If so, we may need to do something similar like what our tracing framework does where it makes
sure writes to SYSTEM.TRACE table do not generate traces themselves.

> Improve schema of SYSTEM.LOG table
> ----------------------------------
>
>                 Key: PHOENIX-4701
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4701
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: James Taylor
>            Priority: Major
>             Fix For: 4.14.0, 5.0.0
>
>         Attachments: PHOENIX-4701_wip1.patch, PHOENIX-4701_wip2.patch
>
>
> If possible, the SYSTEM.LOG table would benefit greatly  (3-5x perf gain) from being
declared as immutable with a column encoding of 1 byte and a storage format of SINGLE_CELL_ARRAY_WITH_OFFSETS.



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