[jira] [Commented] (CASSANDRA-7688) Add data sizing to a system table

["Piotr Kołaczkowski (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-7688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568708#comment-14568708 ] 

Piotr Kołaczkowski commented on CASSANDRA-7688:
-----------------------------------------------

So what is this JMX call to refresh the estimates?
I tried setting {{-Dcassandra.size_recorder_interval=1}} (I know, ridiculously low value) and the size estimates table is still empty when running the tests.

> Add data sizing to a system table
> ---------------------------------
>
>                 Key: CASSANDRA-7688
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7688
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jeremiah Jordan
>            Assignee: Aleksey Yeschenko
>             Fix For: 2.1.5
>
>         Attachments: 7688.txt
>
>
> Currently you can't implement something similar to describe_splits_ex purely from the a native protocol driver.  https://datastax-oss.atlassian.net/browse/JAVA-312 is open to expose easily getting ownership information to a client in the java-driver.  But you still need the data sizing part to get splits of a given size.  We should add the sizing information to a system table so that native clients can get to it.



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