BackupPC-users

Re: [BackupPC-users] rsync clients run out of memory

2009-08-14 00:10:35
Subject: Re: [BackupPC-users] rsync clients run out of memory
From: "Jeffrey J. Kosowsky" <backuppc AT kosowsky DOT org>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Fri, 14 Aug 2009 00:05:43 -0400
Richard Hansen wrote at about 16:52:01 -0400 on Thursday, August 13, 2009:
 > I'm using BackupPC 3.1.0 and I'm having problems with rsync clients 
 > running out of memory and crashing (the Linux kernel's OOM-Killer is 
 > unleashed, wreaking all sorts of havoc).  Apparently this is a known 
 > problem if a lot of files are being synced and one or both ends of the 
 > rsync transfer is older than rsync 3.0 (see 
 > <http://www.samba.org/rsync/FAQ.html#5>).
 > 
 > The client machines have rsync 3.0, but it looks like BackupPC uses an 
 > older version.  I just switched to tar, so we'll see if that makes the 
 > problem go away.
 > 
 > I'd prefer to use rsync.  Is there any chance BackupPC could use a newer 
 > version of File::RsyncP that supports rsync protocol version 30?
 > 

This has been discussed many times on the list - please see the
archives.
Bottom line is that the memory issue seems to be solved in rsync 3.0
even though protocol < 30 is used. Upgrading to version 30 is a *big*
deal and would likely require significant rewrite of
perl-File-RsyncP.

Again please review the archives...

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