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From "Benedict (JIRA)" <>
Subject [jira] [Resolved] (CASSANDRA-5019) Still too much object allocation on reads
Date Thu, 14 Aug 2014 10:06:15 GMT


Benedict resolved CASSANDRA-5019.

    Resolution: Duplicate

Since the read path will be rewritten as part of efforts to introduce CASSANDRA-7447 (both
regards internal APIs, and the implementation details for the new format), this ticket should
be addressed by "doing things right" here. This may mean the legacy format continues to be
somewhat inefficient, but this may or may not eventually be retired entirely, so there is
probably not much point spending a lot of time optimising it, esp. when the impact is unknown
and probably not dramatic in relation to the other costs associated with this format.

> Still too much object allocation on reads
> -----------------------------------------
>                 Key: CASSANDRA-5019
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>              Labels: performance
>             Fix For: 3.0
> ArrayBackedSortedColumns was a step in the right direction but it's still relatively
heavyweight thanks to allocating individual Columns.

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