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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9705) Simplify some of 8099's concrete implementations
Date Wed, 22 Jul 2015 19:33:04 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14637487#comment-14637487
] 

Aleksey Yeschenko commented on CASSANDRA-9705:
----------------------------------------------

FYI, since our upgrade tests are currently not being run by cassci (because of simultaneous
Java7+Java8 issues), cassci had not caught an upgrade issue.

LegacySchemaMigrator breaks, trying to read from the old (2.1) sstables.

> Simplify some of 8099's concrete implementations
> ------------------------------------------------
>
>                 Key: CASSANDRA-9705
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9705
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>             Fix For: 3.0 beta 1
>
>
> As mentioned in the ticket comments, some of the concrete implementations (for Cell,
Row, Clustering, PartitionUpdate, ...) of the initial patch for CASSANDRA-8099 are more complex
than they should be (the use of flyweight is typically probably ill-fitted), which probably
has performance consequence. This ticket is to track the refactoring/simplifying those implementation
(mainly by removing the use of flyweights and simplifying accordingly).



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