BackupPC-users

Re: [BackupPC-users] Consistent (and frustrating!) 'child exited prematurely' errors

2008-06-20 10:59:42
Subject: Re: [BackupPC-users] Consistent (and frustrating!) 'child exited prematurely' errors
From: Rob Owens <rob.owens AT biochemfluidics DOT com>
Date: Fri, 20 Jun 2008 10:59:29 -0400

Leandro Tracchia wrote:
> Rob:
> 
>> I have filenames that are too long to be backed up from my Windows servers, 
>> and BackupPC just skips them (and shows an error in the logs). It does not 
>> cause rsyncd to stop.
> 
> just skips them ?!?! thats not good. i'm going to have to take care of that.
> 
Yeah, on my system it just skips the long-named files.  If you go to 
that host's page and look at the errors, you can see that it skipped the 
files.  Unfortunately, this is not shown on the host summary page...

> 
>> I don't know what those last two errors are.  I don't supposed rsyncd is 
>> running out of memory on the windows machine, is it?
> 
> the windows machine has 3GB of RAM. i'm guessing thats enough.
> 
> 
>> I found this thread which blames the error on the --partial switch. 
>> http://www.itefix.no/phpws/index.php?module=phpwsbb&PHPWSBB_MAN_OP=view&PHPWS_MAN_ITEMS=454
>>  I'm not sure I'm convinced, though.  I still suspect memory issues, but 
>> it's just a hunch.
> 
> i also read a different post on a problem with backuppc crashing when
> continuing from a partial backup (but of course i can't find the post
> now). the full backup in my situation IS ALSO trying to continue from
> a partial backup. what do i have to do to make backuppc start the full
> backup from scratch instead from a partial??? i want to try this.
> 
Not sure about that one.  I guess you could remove the host and all of 
its backups completely, but you'd only want to do that if you don't 
already have any full backups.

> Chris:
> 
>> Transient network issue or a firewall.  The Client is claiming that the 
>> BackupPC server sent a TCP reset.  The three and a half hour gap between log 
>> entries is interesting. Did the backup not encounter any more long filenames 
>> in that time, or did it get hung up on something...  More verbose logging 
>> might help determine that.
> 
> not a firewall issue. but i do also have concern about my network.
> this is why i am going to rearrange the backuppc server so that it
> downloads the data from the windows file server directly onto a local
> hard drive on the backuppc server (instead of moving it to the NAS).
> i'm hoping this will make a difference. how can i get more verbose
> logging from rsync on the windows server??
> 
On Linux, anyway, it looks like there's a "max verbosity" setting you 
can put into rsyncd.conf.  It defaults to "1" so try:

max verbosity = 2

and see if that helps.  If not, go to 3 or higher (I'm not sure what the 
highest allowable value is).

-Rob
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