Jason Dixon wrote:
> On Thu, Nov 27, 2008 at 01:01:12AM +0100, Kjetil Torgrim Homme wrote:
>> Jason Dixon <jdixon AT omniti DOT com> writes:
>>> On Wed, Nov 26, 2008 at 11:59:41AM +0100, Kshatriya wrote:
>>>>> recently. Since then, we've encountered frequent failures of the
>>>>> catalog backup job which reads from the local FD. They always
>>>>> fail with a "Packet size too big" error, which seems to be more
>>>> Check if you are using a different MTU size than the rest of your
>>>> hosts in the network.
>>> This is only for the localhost FD. Traffic should never hit a
>>> physical interface.
>> I don't know if it is relevant, but the MTU for lo0 on Solaris is 8232
>> I wouldn't use "localhost" anyway -- I prefer to use globally unique
> Good idea, I've put this into testing. I'll report back our results in
> a few days.
I don't think this is the problem - 'Packet size too big from XYZ' is a
Bacula error, caused by the SD rejecting a message from the FD. Data from
the FD to SD is encoded in 2 packets; a 'header', which contains (among
other things) the size of the second packet, which contains the data.
The error is caused by the size being out of range (max is 1,000,000).
Earlier in the backup there was a read error from the FD (No data
available). The ENODATA is generated internally by Bacula when it reads 0
bytes (a read returns <= 0, and errno == 0). This would suggest to me that
there is some sort of problem with the FD.
Is it possible that the generation of the catalog backup is taking so long
that the connection between the FD and SD is timing out?
Allan
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