cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Joshua McKenzie (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-6283) Windows 7 data files keept open / can't be deleted after compaction.
Date Wed, 05 Mar 2014 15:02:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920931#comment-13920931
] 

Joshua McKenzie edited comment on CASSANDRA-6283 at 3/5/14 3:01 PM:
--------------------------------------------------------------------

Could you attach the most recent system.log from the root and neighbor nodes to this ticket?
 Might help see if there's anything else going on there in the environment involved in this.


was (Author: joshuamckenzie):
Could you attach the system.log from the root and neighbor nodes to this ticket?  Might help
see if there's anything else going on there in the environment involved in this.

> Windows 7 data files keept open / can't be deleted after compaction.
> --------------------------------------------------------------------
>
>                 Key: CASSANDRA-6283
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6283
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Windows 7 (32) / Java 1.7.0.45
>            Reporter: Andreas Schnitzerling
>            Assignee: Joshua McKenzie
>              Labels: compaction
>             Fix For: 2.0.6
>
>         Attachments: 6283_StreamWriter_patch.txt, leakdetect.patch, screenshot-1.jpg,
system.log
>
>
> Files cannot be deleted, patch CASSANDRA-5383 (Win7 deleting problem) doesn't help on
Win-7 on Cassandra 2.0.2. Even 2.1 Snapshot is not running. The cause is: Opened file handles
seem to be lost and not closed properly. Win 7 blames, that another process is still using
the file (but its obviously cassandra). Only restart of the server makes the files deleted.
But after heavy using (changes) of tables, there are about 24K files in the data folder (instead
of 35 after every restart) and Cassandra crashes. I experiminted and I found out, that a finalizer
fixes the problem. So after GC the files will be deleted (not optimal, but working fine).
It runs now 2 days continously without problem. Possible fix/test:
> I wrote the following finalizer at the end of class org.apache.cassandra.io.util.RandomAccessReader:
> {code:title=RandomAccessReader.java|borderStyle=solid}
> @Override
> protected void finalize() throws Throwable {
> 	deallocate();
> 	super.finalize();
> }
> {code}
> Can somebody test / develop / patch it? Thx.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message