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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2942) If you drop a CF when one node is down the files are orphaned on the downed node
Date Wed, 24 Aug 2011 02:39:29 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-2942:
--------------------------------------

    Attachment: 2942.txt

patch to wait for StorageService.tasks on shutdown.  Also moves CL segment deletion there.

> If you drop a CF when one node is down the files are orphaned on the downed node
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2942
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2942
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Cathy Daw
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 1.0
>
>         Attachments: 2942.txt
>
>
> * Bring up 3 node cluster
> * From node1: Run Stress Tool
> {code} stress --num-keys=10 --columns=10 --consistency-level=ALL --average-size-values
--replication-factor=3 --nodes=node1,node2 {code}
> * Shutdown node3
> * From node1: drop the Standard1 CF in Keyspace1
> * Shutdown node2 and node3
> * Bring up node1 and node2. Check that the Standard1 files are gone.
> {code}
> ls -al /var/lib/cassandra/data/Keyspace1/
> {code}
> * Bring up node3. The log file shows the drop column family occurs
> {code}
>  INFO 00:51:25,742 Applying migration 9a76f880-b4c5-11e0-0000-8901a7c5c9ce Drop column
family: Keyspace1.Standard1
> {code}
> * Restart node3 to clear out dropped tables from the filesystem
> {code}
> root@cathy3:~/cass-0.8/bin# ls -al /var/lib/cassandra/data/Keyspace1/
> total 36
> drwxr-xr-x 3 root root 4096 Jul 23 00:51 .
> drwxr-xr-x 6 root root 4096 Jul 23 00:48 ..
> -rw-r--r-- 1 root root    0 Jul 23 00:51 Standard1-g-1-Compacted
> -rw-r--r-- 2 root root 5770 Jul 23 00:51 Standard1-g-1-Data.db
> -rw-r--r-- 2 root root   32 Jul 23 00:51 Standard1-g-1-Filter.db
> -rw-r--r-- 2 root root  120 Jul 23 00:51 Standard1-g-1-Index.db
> -rw-r--r-- 2 root root 4276 Jul 23 00:51 Standard1-g-1-Statistics.db
> drwxr-xr-x 3 root root 4096 Jul 23 00:51 snapshots
> {code}
> *Bug:  The files for Standard1 are orphaned on node3*

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