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From "Jianing hu (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-924) lost data replica not restored after server restart
Date Tue, 30 Mar 2010 01:55:27 GMT


Jianing hu commented on CASSANDRA-924:

Sorry my bad. I was indeed using the wrong patch in my last test (wget renamed the file).
The latest patch works!

Thank you so much for bearing with me and getting it fixed so fast.

> lost data replica not restored after server restart
> ---------------------------------------------------
>                 Key: CASSANDRA-924
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.5, 0.6, 0.6.1, 0.7
>         Environment: CentOS 5.2
>            Reporter: Jianing hu
>             Fix For: 0.5, 0.6, 0.6.1, 0.7
>         Attachments: 924-0.5.patch, 924.patch, cs1.log, cs1.log, cs2.log, cs2.log, cs3.log,
cs3.log, error.log, error.log, error.log, storage-conf.xml
> With Replicationfactor=2, if a server is brought down and its data directory wiped out,
it doesn't restore its data replica after restart and nodeprobe repair.
> Steps to reproduce:
> 1) Bring up a cluster with three servers cs1,2,3, with their initial token set to 'foo3',
'foo6', and 'foo9', respectively. ReplicationFactor is set to 2 on all 3.
> 2) Insert 9 columns with keys from 'foo1' to 'foo9', and flush. Now I have foo1,2,3,7,8,9
on cs1, foo1,2,3,4,5,6, on cs2, and foo4,5,6,7,8,9
> on cs3. So far so good
> 3) Bring down cs3 and wipe out its data directory
> 4) Bring up cs3
> 5) run nodeprobe repair Keyspace1 on cs3, the flush
> At this point I expect to see cs3 getting its data back. But there's nothing in its data
directory. I also tried getting all columns with
> ConsistencyLevel::ALL to see if that'll do a read pair. But still cs3's data directory
is empty.

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