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From "Jeremy Hanna (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-1103) DSS rack-awareness doesn't really work
Date Tue, 18 May 2010 20:07:43 GMT


Jeremy Hanna commented on CASSANDRA-1103:

Looks good, makes it more readable with the refactor.

Two comments:

1) DSS: in loadEndpoints, for dcTokens, could a Collection be used that is naturally sorted
so it doesn't have to iteration through them to sort them?
2) should the comment on line 156 really be before line 160 instead where the loop is

> DSS rack-awareness doesn't really work
> --------------------------------------
>                 Key: CASSANDRA-1103
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.6
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.7
>         Attachments: 0001-clean-up-DSS-inline-getNaturalEndpointsInternal-remove.txt,
0002-simplify-out-doneDataCenterIter-variable.txt, 0003-fix-DSS-to-generate-unique-racks-when-possibleb.txt
> CASSANDRA-952 fixed most of the DSS issues but the attempted placement of machines on
different racks w/in each DC is poor (comparing each node only to the rack of the 1st replica
in that DC rather than all).

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