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From "Jeff Jirsa (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-13912) Avoid doing read repairs on repaired data
Date Mon, 09 Oct 2017 05:48:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-13912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeff Jirsa updated CASSANDRA-13912:
-----------------------------------
    Component/s: Core

> Avoid doing read repairs on repaired data
> -----------------------------------------
>
>                 Key: CASSANDRA-13912
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13912
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stefan Podkowinski
>
> While thinking about [~slebresne]'s proposal in CASSANDRA-13910, I found myself wondering
if we shouldn't also change the read repair behaviour to never work on data that already has
been repaired by anti-entropy repair before. Any mismatches on already repaired data could
as well be caused by a bug (see CASSANDRA-13004) and writing the data back again will probably
do more harm than good. 



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