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From "Nick Bailey (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1992) Bootstrap breaks data stored (missing rows, extra rows, column values modified)
Date Wed, 19 Jan 2011 19:26:48 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12983850#action_12983850
] 

Nick Bailey commented on CASSANDRA-1992:
----------------------------------------

This would be a good test to have in the distributed test set up.

> Bootstrap breaks data stored (missing rows, extra rows, column values modified)
> -------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1992
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1992
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.0
>         Environment: Linux 2.6.36-1 #1 SMP Tue Nov 9 09:56:02 CET 2010 x86_64 Intel(R)_Core(TM)2_Quad_CPU____Q8300__@_2.50GHz
PLD Linux
> glibc-2.12-4.i686
> java-sun-1.6.0.22-1.i686
>            Reporter: Mateusz Korniak
>            Assignee: Brandon Williams
>             Fix For: 0.7.1
>
>         Attachments: 1992.txt
>
>   Original Estimate: 8h
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Scenario:
> Two fresh (empty /data /commitog /saved_caches dirs) cassandra installs.
> Start first one.
> Run data inserting program [1],  run again in verify mode - all data intact.
> Bootstrap 2nd node.
> Run verification again, now it fails.
> Issue is very strange to me as cassandra works perfectly for me when cluster nodes stay
the same for days now but any bootstrap ( 1 -> 2 nodes, 2 -> 3 nodes, 2->3 nodes
RF=2) breaks data.
> I am running cassandra with 1GB heap size, 32bit userland on 64bit kernels, not sure
what else could matter there.
> Any hints ?
> Thanks in advance, regards.
> [1] simple program generating data and later verifying data.
> http://beauty.ant.gliwice.pl/bugs/cassandra-bootstrap/test.py
> [2] Logs from 1st node:
> http://beauty.ant.gliwice.pl/bugs/cassandra-bootstrap/system-3.4.log
> [3] Logs from 2nd (bootstraping node)
> http://beauty.ant.gliwice.pl/bugs/cassandra-bootstrap/system-3.8.log

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