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From "Russell Bradberry (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12367) Add an API to request the size of a CQL partition
Date Tue, 13 Sep 2016 13:51:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15487263#comment-15487263
] 

Russell Bradberry commented on CASSANDRA-12367:
-----------------------------------------------

{quote}
I am not sure how it will work like tracing with SIZE ON? When you issue a query after SIZE
ON, will it give the size of the query or CQL partition? 
{quote}
In this case it would be the size of the query, if you want the size of a given partition
then you would run a query specifying only the partition key.

{quote}
Also we will need the size before every read or write. This will cause calling SIZE ON and
then OFF after every operation.
{quote}

Why?  I was suggesting this for the CQL specific representation, the internal representation
could still be a JMX call.  If the client needs it for every read/write then it would just
always be on, just as if you wanted to have the trace information for every read/write.  

> Add an API to request the size of a CQL partition
> -------------------------------------------------
>
>                 Key: CASSANDRA-12367
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12367
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Geoffrey Yu
>            Assignee: Geoffrey Yu
>            Priority: Minor
>             Fix For: 3.x
>
>         Attachments: 12367-trunk-v2.txt, 12367-trunk.txt
>
>
> It would be useful to have an API that we could use to get the total serialized size
of a CQL partition, scoped by keyspace and table, on disk.



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