[jira] Commented: (CASSANDRA-1519) Add threshold to dynamic snitch

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-1519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12920381#action_12920381 ] 

Jonathan Ellis commented on CASSANDRA-1519:
-------------------------------------------

i like the badness threshold solution.

is the prefer_pinning variable redundant?  looks like badness threshold of 0 is equivalent to off.

> Add threshold to dynamic snitch
> -------------------------------
>
>                 Key: CASSANDRA-1519
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1519
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: 0.7.1
>            Reporter: Jonathan Ellis
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: 1519.txt
>
>
> with CASSANDRA-1314, we'd like to have dynamic snitch route around slow/failing nodes but not messing with our "pinning" of ranges to nodes unless a threshold of badness is crossed.  (Threshold should be optional since other snitches pure dynamic corresponds exactly to what we want.)

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