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From "T Jake Luciani (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-9851) Write Durability Failures Even During Batch Commit Mode
Date Tue, 21 Jul 2015 12:56:04 GMT


T Jake Luciani commented on CASSANDRA-9851:

Yeah, l think this is the issue. Sorry about that [~jkni]

> Write Durability Failures Even During Batch Commit Mode 
> --------------------------------------------------------
>                 Key: CASSANDRA-9851
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Debian, x86_64, Kernel 3.16.7
>            Reporter: Joel Knighton
>         Attachments: n1.log, n2.log, n3.log, n4.log, n5.log
> Reproducible as of a66863861136a29dc04d7bc3b319f9f8fae0f49f on trunk, as well as in other
recent commits.
> Durability of writes seems to be violated, even under batch commitlog mode. This issue
was discovered by a test that adds a range of values to a CQL Set, with no deletes issued.
The test is available here
> During this write pattern, random nodes in the 5 node cluster are kill -9ed. Once all
nodes have been brought back up, another read at CL.ALL is issued. This read fails to return
values that have previously been successfully read from the cluster. This problem is not reproducible
on 2.1.* or 2.2.
> Log files from each node are attached.

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