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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-2885) Set default value for UPDATE_CACHE_FREQUENCY
Date Thu, 11 May 2017 17:27:04 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-2885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006819#comment-16006819
] 

Andrew Purtell commented on PHOENIX-2885:
-----------------------------------------

Please fix typo. FREQUENCY, not FERQUENCY
{code}
    public static final int DEFAULT_UPDATE_CACHE_FERQUENCY = 0;
{code}

Are the test failures related?

The new test case checks that the setting can be updated, but do we know if updating it will
actually have the intended effect?

> Set default value for UPDATE_CACHE_FREQUENCY
> --------------------------------------------
>
>                 Key: PHOENIX-2885
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2885
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: James Taylor
>            Assignee: Maddineni Sukumar
>             Fix For: 4.11.0
>
>         Attachments: PHOENIX-2885.4.10-HBase-0.98.patch
>
>
> We have the ability currently to tell Phoenix how stale we're will to have the metadata
through our UPDATE_CACHE_FREQUENCY feature[1]. By default, when a table is created, unless
explicitly specified, there is no UPDATE_CACHE_FREQUENCY set. We should provide a new Phoenix
configuration parameter to specify a default value when a CREATE TABLE statement is executed.
In addition, when a VIEW is created, we should inherit the UPDATE_CACHE_FREQUENCY value from
the parent (unless it's explicitly specified) and then fallback to the new default config
value.
> [1] https://phoenix.apache.org/language/index.html#options



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