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From "Jonathan Ellis (JIRA)" <>
Subject [jira] Resolved: (CASSANDRA-893) Hinted Handoff Paging for Columns
Date Fri, 28 May 2010 17:04:38 GMT


Jonathan Ellis resolved CASSANDRA-893.

    Fix Version/s:     (was: 0.6.3)
       Resolution: Duplicate

superseded by CASSANDRA-1142

> Hinted Handoff Paging for Columns
> ---------------------------------
>                 Key: CASSANDRA-893
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Chris Goffinet
>            Priority: Minor
> I noticed this in HHManager:
> TODO handle rows that have incrementally grown too large for a single message.)
> In CASSANDRA-883 I had noticed a lot of CPU burning cycles. I was unable to figure out
until tonight why this was. We had a very very large row (9.2M+ columns). If this row ever
got hinted, it was trying to load entire row into memory. 
> It might be a good idea to actually add paging support (send target multiple row mutations)
so that we don't have read the _entire_ row into memory.

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