On 2020-07-02 14:10, Martin Simmons wrote:
>>>>>> On Wed, 1 Jul 2020 15:54:27 -0400, Phil Stracchino said:
>>
>> On 2020-06-26 17:58, Phil Stracchino wrote:
>>> Oh, another detail I learned this morning:
>>>
>>> Cancelling a SINGLE hung job does not crash the Director.  It appears it
>>> is only attempting to cancel a SECOND hung job that causes the Director
>>> to crash.
>>
>>
>> After four days of normal operation I got another hung job this morning,
>> still with HAproxy not in use.  So it is *much less* prevalent without
>> HAproxy but still occurring (one failure every 3-4 days instead of 2-3
>> failed jobs per day).  This is the same running Director process as
>> handled the failure mentioned above, and the Director was frozen and
>> unresponsive for nearly ten minutes attempting to cancel the second job
>> before it finally marked it as cancelled.  (But the job still shows as
>> running and with a fatal error.)
> 
> I'm confused how it can be the same Director process.  Didn't that Director
> crash when you attempted to cancel the second job?


No, I had a single hung job which was successfully cancelled (though it
took a long time), and then no more failures until yesterday when there
was again a single hung job (which also took a long time to cancel but
did eventually successfully cancel).  It seems as long as I don't try to
cancel two hung jobs at once, there is no crash.


> 
> 
>> ====
>> *cancel
>> Select Job(s):
>>      1: JobId=25114 Job=Narn_Backup.2020-07-01_04.30.00_37
>>      2: JobId=25115 Job=MySQL_Backup_New.2020-07-01_04.55.00_39
>> Choose Job list to cancel (1-2): 1
>> JobId=25114 Job=Narn_Backup.2020-07-01_04.30.00_37
>> Confirm cancel of 1 Job (yes/no): yes
>> Failed to connect to File daemon.
> 
> This failure to connect is strange.
> 
> 
>> Martin, you're still convinced this has to do with the SD?
> 
> I think the hanging jobs are caused by a problem with how Bacula recovers from
> an SQL error while inserting attributes into the database.  This is not a
> problem with the SD itself, but the hanging does involve the SD so that's why
> it would be useful to get simultaneous backtraces from all 3 daemons while
> they are hanging.
> 
> 
>>                                                             I'm still
>> working on trying to figure out how I can get dbx installed so that I
>> can backtrace the SD.  pstack isn't very informative:
>>
>> asgard:root:~:1 # pstack 10971
>> 10971:  /opt/bacula/sbin/bacula-sd -v -c /opt/bacula/etc/bacula-sd.conf
>> ------------  lwp# 1 / thread# 1  ---------------
>>  ffff80ffbf580daa pollsys  (ffff80ffbfffcd10, 1, 0, 0)
>>  ffff80ffbf525755 pselect () + 181
>>  ffff80ffbf525bd4 select () + 68
>>  ffff80ffb5211023 __1cSbnet_thread_server6FpnFdlist_ipnJworkq_tag_pFpv_4_v_ 
>> () + 963
>>  0000000000419c84 main () + 724
>>  3f763a7574735070 ???????? ()
>> ------------  lwp# 3 / thread# 3  ---------------
>>  ffff80ffbf577e97 lwp_park (0, ffff80ffbe5bbe30, 0)
>>  ffff80ffbf5716fa cond_wait_queue () + 62
>>  ffff80ffbf571b38 cond_wait_common () + 1dc
>>  ffff80ffbf571dc7 __cond_timedwait () + a7
>>  ffff80ffbf571e11 cond_timedwait () + 29
>>  ffff80ffbf571e45 pthread_cond_timedwait () + 9
>>  ffff80ffb526a41a watchdog_thread () + 57a
>> ------------  lwp# 70 / thread# 70  ---------------
>>  ffff80ffbf580e7a read     (10, ffff80ffbd3c495c, 4)
>>  ffff80ffb524fdbe __1cJBSOCKCORELread_nbytes6Mpci_i_ () + 4e
> 
> So it just stops there?  That's annoying.
> 
> Which compiler and options were used to compile on Solaris?  What is the
> setting for CFLAGS in the generated bacula/src/stored/Makefile?


Sun Developer Studio 12.6

Configure invocation:

./configure --prefix=/opt/bacula --with-dump-email=r...@caerllewys.net
--with-job-email=r...@caerllewys.net
--with-smtp-host=smtp.caerllewys.net --with-subsys-dir=/opt/bacula/var
--with-working-dir=/opt/bacula/var --enable-build-stored
--disable-build-dird --enable-smartalloc --with-mysql=/opt/mysql/mysql
CC=/opt/suncc/bin/CC CFLAGS='-fast -xarch=generic -xtarget=generic
-xcache=generic -m64 -g' CPPFLAGS='-fast -xarch=generic -xtarget=generic
-xcache=generic -m64 -g' CXX=/opt/suncc/bin/CC CXXFLAGS='-march=native
-mfpmath=sse -pipe -m64 -g' LDFLAGS="-m64"

Which, as expected, yields:

asgard:root:/netstore/src/bacula-9.6.5:11 # grep CFLAGS src/stored/Makefile
CFLAGS = -fast -xarch=generic -xtarget=generic -xcache=generic -m64 -g


-- 
  Phil Stracchino
  Babylon Communications
  ph...@caerllewys.net
  p...@co.ordinate.org
  Landline: +1.603.293.8485
  Mobile:   +1.603.998.6958


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