Hi,
03.12.2008 17:28, Bob Hetzel wrote:
> Previously, From: Arno Lehmann <al AT its-lehmann DOT de> said...
>
>>> Thread 26 (Thread -1215112304 (LWP 5413)):
>>>> #0 0xb7f6a410 in __kernel_vsyscall ()
>>>> #1 0xb7adba41 in ___newselect_nocancel () from /lib/libc.so.6
>>>> #2 0x080a99b9 in bnet_thread_server (addrs=0x80f9860, max_clients=20,
>>>> client_wq=0x80f64e0, handle_client_request=0x808d536
>>>> <handle_UA_client_request>)
>>>> at bnet_server.c:161
>> The above line looks like it might be related to the problem... in
>> general, there's one thread per job running (plus the parent threads),
>> and the variable max_clients might indicate the number of currently
>> active thread servers is exhausted or something...
>>
> [snip]
>
>> Ok... there are quite a number of threads that could be console
>> connections. There is a hard limit of the active console connections -
>> it seems possible that you ran into that limit.
>>
>> Have you checked how many console connections are currently open?
>>
>> IIRC, if you SIGTERM a console, it does not necessarily die... so
>> there could be console processes laying around somewhere, keeping
>> their connections open.
>>
>> If you find those and 'kill -9' them, do your new console connections
>> work?
>>
>> Arno
>>
>
> I generally operate with no more than two console connections. I think
> I may have had a hung console connection before doing that traceback
> which I would have ctrl-c'd to get out of. Of course at this point I
> don't still have it stalled, and I restarted the server a couple of
> times since then for other reasons. If it happens again I'll do the
> traceback and also do a "ps -ef" too. I think in this case I only had
> the -sd, -dir, and -fd running though so was there something else you
> meant?
Actually, I would rather say I was guessing... and pointing out things
I considered unexpected to Eric, hoping he'd have a look at that stuff.
> Also, after I ctrl-c'd the connections I was able to run a new
> console connection and do certain things, but it would hang in the same
> spot if I did a "status storage" or a mount request.
Ok, that pretty much rules out the console connections limit.
> In addition, I don't know if this has any bearing but here are the
> concurrency values I was operating under...
> In bacula-sd.conf
> Maximum Concurrent Jobs = 20
> 3 drives with spooling turned on.
> In bacula-dir.conf
> in the Director section:
> Maximum Concurrent Jobs = 12
> In the Jobs sections,
> Maximum Concurrent Jobs = 12
> In the Storage section
> Maximum Concurrent Jobs = 12
>
> There are 3 drives in my autochanger, spooling is turned on. I've
> temporarily set bacula back to using only two drives since things were
> running more smoothly before I added the 3rd one.
Ok... the settings don't look bad.
After I had a look at the release notes for 2.4.4-b1 and the bug
tracker I suggest you try the 2.4.4-b1 SD - as far as I can see, bug
1192 *could* be what you found. It should be sufficient to ./configure
and make the 2.4.4 version and simply run the newly-created SD with
the existing configuration, so there shouldn't be a need to upgrade
your whole Bacula setup, or even to touch the existing configuration.
If it isn't, it's time to prepare a new bug report, I guess...
Arno
>
> Thanks,
>
> Bob
>
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--
Arno Lehmann
IT-Service Lehmann
Sandstr. 6, 49080 Osnabrück
www.its-lehmann.de
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