[jira] [Assigned] (CASSANDRA-2942) If you drop a CF when one node is down the files are orphaned on the downed node

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

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

Jonathan Ellis reassigned CASSANDRA-2942:
-----------------------------------------

    Assignee: Sylvain Lebresne

You should be able to reproduce this even on a single node -- just drop a CF, then restart.  It only cleans out marked-for-delete files from known CFs.

May be fixed by CASSANDRA-2521.  Otherwise we can add "go ahead and clear out marked-for-delete files, even if they don't belong to an active CF" logic.

> 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
>            Reporter: Cathy Daw
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>
> * 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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