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Re: [Bacula-users] bacula - backup.c:892 Network send error

2013-01-29 13:35:04
Subject: Re: [Bacula-users] bacula - backup.c:892 Network send error
From: Josh Fisher <jfisher AT pvct DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Tue, 29 Jan 2013 13:31:35 -0500 
On 1/29/2013 1:03 PM, Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] wrote:
> Josh,
>
> I have the Heartbeat interval set to 120 on the server right now. Should I 
> change it to "60" and also add "Heartbeat 60" to the client-dir and client-fd 
> files??

I think it should be the same value everywhere it is set. The idea is 
that the ping at the heartbeat interval prevents the connection from 
being dropped by "smart" switches and/or client NIC drivers that attempt 
to shutdown the NIC's PHY by going into power saving modes. Technically, 
the aggressive sleep modes violate the TCP standards. Bacula relies on a 
TCP connection remaining connected. If something happens to drop the 
connection, then Bacula sees it as a broken pipe.

>
> Thank you.
> Uthra
>
> -----Original Message-----
> From: Josh Fisher [mailto:jfisher AT pvct DOT com]
> Sent: Tuesday, January 29, 2013 12:49 PM
> To: bacula-users AT lists.sourceforge DOT net
> Subject: Re: [Bacula-users] bacula - backup.c:892 Network send error
>
> On 1/29/2013 11:22 AM, Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] wrote:
>> As far as replacing the NIC on the bacula server - The backups were running 
>> fine all these days. I have run several Full and incremental backups of 
>> these two clients in the past.  I am not sure why I am suddenly having a 
>> problem? Last evening I tried to run a Full backup of one of the client 
>> again and this morning I saw the job was hung and the client machine had to 
>> be power cycled to bring it back on-line.
>>
>> On my bacula backup server (RHEL6) . I have set-up "Heartbeat interval=120" 
>> on the server in the bacula-dir.conf, bacula-fd.conf and bacula-sd.conf and 
>> bconsole.conf configuration files. Should I add Heartbeat Interval to the 
>> client config file also client-dir and client-fd??
>>
>> I am even thinking to try replace the network cable on the bacula server?
>>
>> If you have any comments or suggestion please let meknow.
> Yes, the heartbeat interval has to be set in the client config file as well. 
> Why not make the heartbeat interval shorter, say 60 seconds for now, to be 
> sure a switch or router between client and server is not timing out?
>
>> Thank you.
>> Uthra
>>
>>
>>
>> -----Original Message-----
>> From: lst_hoe02 AT kwsoft DOT de [mailto:lst_hoe02 AT kwsoft DOT de]
>> Sent: Friday, January 25, 2013 3:31 PM
>> To: bacula-users AT lists.sourceforge DOT net
>> Subject: Re: [Bacula-users] bacula - backup.c:892 Network send error
>>
>>
>> Zitat von "Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC]"
>> <uthra.r.rao AT nasa DOT gov>:
>>
>>> Thank you for your reply. Backup of these clients have been running
>>> fine all these days. Only when I started a FULL back-up this week of
>>> the two clients they failed:
>>>
>>> Client1:
>>> JobId 4183: Fatal error: backup.c:892 Network send error to SD.
>>> ERR=Broken pipe 24-Jan 20:23
>>>
>>> Client2:
>>> JobId 4180: Fatal error: backup.c:892 Network send error to SD.
>>> ERR=Broken pipe 24-Jan 13:16 ldy-sd JobId 4180: Fatal error:
>>> spool.c:301 Fatal append error on device "Drive-1" (/dev/nst0):
>>> ERR=block.c:1045 Read error on fd=5 at file:blk 0:0 on device
>>> "Drive-1" (/dev/nst0). ERR=Input/output error.
>>>
>>> Uthra
>> As said we also had this kind of problems. On Machine with ~20G failed only 
>> from time to time but always at Full. The other machine failed all Full to 
>> tape after some random amount of data ranging from 300G to 1.6T from around 
>> 1.8T. After replacing the NIC at the bacula server the problem went away. 
>> Before this we have tested all sort of other network related things to no 
>> avail, so it might also be the problem you are facing.
>>
>> Regards
>>
>> Andreas
>>
>>
>>
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>
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