Hi Andrew,
When using xrootd-20090904, XrdCnsd still has some problem.
Sometimes(2 times in 3 days are found) xrdcnsd prints some errors
below and then no response.
(*)
091009 21:20:07 15685 XrdCnsdoEvents: Event:
'haifeng.32505:22@pcuwsun30 create 664
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00570005.pool.root.4?'
091009 21:20:07 15685 XrdCnsXeq: thread started
091009 21:20:07 15685 XrdCnsdoEvents: Event:
'haifeng.32505:22@pcuwsun30 closew
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00570005.pool.root.4
12317450'
091009 21:29:52 15685 XrdCnsdoEvents: Event:
'haifeng.6132:20@pcuwsun20 create 664
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/AOD/AOD.000908._00570003.pool.root.4?'
091009 21:29:52 15685 XrdCnsXeq: thread started
091009 21:29:52 15685 XrdCnsdoEvents: Event:
'haifeng.6132:20@pcuwsun20 closew
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/AOD/AOD.000908._00570003.pool.root.4
47660354'
091009 21:32:07 15685 XrdCnsSched: running underused thread monitor inq=0
091009 21:32:07 15685 XrdCnsSched: 2 threads; 1 idle
091009 21:32:07 15685 XrdCnsSched: scheduling underused thread monitor
in 780 seconds
091009 21:33:03 15685 XrdCnsdoEvents: Event:
'haifeng.11089:22@pcuwsun22 create 664
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00530003.pool.root.4?'
091009 21:33:03 15685 XrdCnsdoEvents: Event:
'haifeng.11089:22@pcuwsun22 closew
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00530003.pool.root.4
12482563'
091009 21:37:25 15685 XrdCnsdoEvents: Event:
'haifeng.11685:20@pcuwsun22 create 664
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/LOG/sim.000908._00560015.log.4?'
091009 21:37:25 15685 XrdCnsdoEvents: Event:
'haifeng.11685:20@pcuwsun22 closew
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/LOG/sim.000908._00560015.log.4
4568199'
091009 21:45:07 15685 XrdCnsSched: running underused thread monitor inq=0
091009 21:45:07 15685 XrdCnsSched: 2 threads; 1 idle
091009 21:45:07 15685 XrdCnsSched: scheduling underused thread monitor
in 780 seconds
091009 21:54:13 15685 XrdCnsdoEvents: Event:
'haifeng.11106:22@pcuwsun31 create 664
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00550005.pool.root.4?'
091009 21:54:13 15685 XrdCnsXeq: thread started
091009 21:54:13 15685 XrdCnsdoEvents: Event:
'haifeng.11106:22@pcuwsun31 closew
/xrootd/users/russlan/mc_112911_ttbar_mcnlo_10TeV_ee.e111_a86_dmp95_tid000908/DUMP/DUM.000908._00550005.pool.root.4
12460586'
091009 21:58:07 15685 XrdCnsSched: running underused thread monitor inq=0
091009 21:58:07 15685 XrdCnsSched: 2 threads; 1 idle
091009 21:58:07 15685 XrdCnsSched: scheduling underused thread monitor
in 780 seconds
091009 22:11:07 15685 XrdCnsSched: running underused thread monitor inq=0
091009 22:11:07 15685 XrdCnsSched: 2 threads; 1 idle
091009 22:11:07 15685 XrdCnsSched: scheduling underused thread monitor
in 780 seconds
091009 22:23:31 15685 XrdCnsdoEvents: Event: ''
091009 22:23:31 15685 XrdCnsdoEvents: traceid missing in event ?
091009 22:23:31 15685 XrdCnsdoEvents: Exiting; lost event connection to xrootd!
Wen
On Sun, Oct 11, 2009 at 4:23 PM, Andrew Hanushevsky
<[log in to unmask]> wrote:
> Hi Wen,
>
> Could be but I will ask the client developer about it. For now, let's let it
> run idle for a while and hen see if it gets itself into that state.
>
> Andy
>
> On Sat, 10 Oct 2009, wen guan wrote:
>
>> Hi andrew,
>>
>> I only found it happened in slc5 machines with version
>> xrootd-20090623(x86_64_linux_26,g++ (GCC) 3.4.6 20060404 (Red Hat
>> 3.4.6-9) binary version) . Sometimes I even cannot kill "XrdCnsd" with
>> "Kill" command. I need to use "Kill -9 " to kill it.
>> Last night I downloaded xrootd-20090904 src version and compiled it
>> locally. Until now I haven't found this problem again. Maybe the
>> problem is related to gcc.
>>
>> Thanks
>> Wen
>>
>> On Sat, Oct 10, 2009 at 3:17 AM, Andrew Hanushevsky
>> <[log in to unmask]> wrote:
>>>
>>> Hi Wen,
>>>
>>> OK. Does this only happen in SLC5 or does it happen in all kernels.
>>>
>>> Andy
>>>
>>> On Fri, 9 Oct 2009, wen guan wrote:
>>>
>>>> Hi Andrew,
>>>>
>>>> For newly started XrdCnsd, when doing a xrdcp, the
>>>> disappeared "poll" thread will appear again and an shadow will be
>>>> created in cns server. But for old Xrdcnsd, when doing xrdcp, no
>>>> "poll" thread will be started. no shadow will be created in cns
>>>> server.
>>>>
>>>> Wen
>>>>
>>>> On Fri, Oct 9, 2009 at 12:58 AM, Andrew Hanushevsky <[log in to unmask]>
>>>> wrote:
>>>>>
>>>>> Hi Wen,
>>>>>
>>>>> I guess I don't understand the actual problem. When you say 'not
>>>>> respond"
>>>>> what do you actually see to come to that conclusion. As for the
>>>>> analysis,
>>>>> and stack traces, these are all perfectly normal. The "poll" thread
>>>>> need
>>>>> not
>>>>> exist at all times and, in fact, will disappear after a long period of
>>>>> inactivity. I will look some more but I need to know what "no response"
>>>>> appears like.
>>>>>
>>>>> Andy
>>>>>
>>>>> ----- Original Message ----- From: "wen guan" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Tuesday, October 06, 2009 12:46 PM
>>>>> Subject: XrdCnsd problem in slc5 with version xrootd-20090623
>>>>>
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> The XrdCnsd in xrootd-20090623 failed to create cns frequestly.
>>>>>> When starting XrdCnsd, it works fine. But when trying it next day, it
>>>>>> will not response. Below is the test result.
>>>>>>
>>>>>> It seems the "poll" thread cannot be started for old XrdCnsd(started
>>>>>> more than one day and there is no active in long time(maybe 780s)).
>>>>>> For (*), Process 10816 was an old XrdCnsd(started more than one day)
>>>>>> process which didn't response. After killed it, a new process 13665
>>>>>> was created which worked fine. From here we can see process 13665 had
>>>>>> a thread "poll"(thread 2) but process 10816 didn't have it.
>>>>>> For (**), When there was no files copied to xrootd for 10 minutes,
>>>>>> the "poll" thread in Process 13665 disappeared. But when I did a
>>>>>> xrdcp to this server. We will saw this "poll" thread again. But for
>>>>>> process which has on active for long time, the "poll" thread cannot be
>>>>>> restart again.
>>>>>>
>>>>>> (*)
>>>>>> [root@pcuwdata12 ~]# ps -ef|grep xrootd-2
>>>>>> xrootd 10798 1 0 Oct02 ? 00:21:21
>>>>>> /opt/xrootd-20090623/bin//xrootd -b -d -R xrootd -l
>>>>>> /tmp/log/xrootd/xrd.log -c /opt/xrootd-20090623/conf/xrdcluster.cfg
>>>>>> xrootd 10809 1 0 Oct02 ? 00:00:05
>>>>>> /opt/xrootd-20090623/bin//cmsd -b -d -R xrootd -l
>>>>>> /tmp/log/xrootd/cms.log -c /opt/xrootd-20090623/conf/xrdcluster.cfg
>>>>>> xrootd 10816 10798 0 Oct02 ? 00:00:00
>>>>>> /opt/xrootd-20090623/bin/XrdCnsd -d -l /tmp/log/xrootd/cnsd.log
>>>>>> root://pcuwsun04.cern.ch:1095
>>>>>> root 13452 13340 0 20:59 pts/1 00:00:00 grep xrootd-2
>>>>>> [root@pcuwdata12 ~]# pstack 10816
>>>>>> Thread 7 (Thread 0x410cf940 (LWP 10826)):
>>>>>> #0 0x000000370e40ae00 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
>>>>>> #1 0x0000000000479707 in XrdSysCondVar::Wait ()
>>>>>> #2 0x000000000047b8e9 in XrdScheduler::TimeSched ()
>>>>>> #3 0x000000000047a21d in XrdStartTSched ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 6 (Thread 0x416ed940 (LWP 10827)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000047ae11 in XrdScheduler::Run ()
>>>>>> #3 0x000000000047a241 in XrdStartWorking ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 5 (Thread 0x417ee940 (LWP 10828)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000047ae11 in XrdScheduler::Run ()
>>>>>> #3 0x000000000047a241 in XrdStartWorking ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 4 (Thread 0x418ef940 (LWP 10834)):
>>>>>> #0 0x000000370e40d5cb in read () from /lib64/libpthread.so.0
>>>>>> #1 0x00000000004736b9 in XrdOucStream::GetLine ()
>>>>>> #2 0x000000000041eb06 in XrdCnsDaemon::getEvents ()
>>>>>> #3 0x000000000041dcfc in CnsEvents ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 3 (Thread 0x419f0940 (LWP 10835)):
>>>>>> #0 0x000000370e40d174 in __lll_lock_wait () from
>>>>>> /lib64/libpthread.so.0
>>>>>> #1 0x000000370e408aca in _L_lock_1034 () from /lib64/libpthread.so.0
>>>>>> #2 0x000000370e40898c in pthread_mutex_lock () from
>>>>>> /lib64/libpthread.so.0
>>>>>> #3 0x000000000041ff5b in XrdSysMutex::Lock ()
>>>>>> #4 0x000000000041f6d4 in XrdCnsEvent::Queue ()
>>>>>> #5 0x000000000041ee43 in XrdCnsDaemon::getEvents ()
>>>>>> #6 0x000000000041dcfc in CnsEvents ()
>>>>>> #7 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #8 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #9 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 2 (Thread 0x41af1940 (LWP 11659)):
>>>>>> #0 0x000000370d89a0b1 in nanosleep () from /lib64/libc.so.6
>>>>>> #1 0x000000370d899ed4 in sleep () from /lib64/libc.so.6
>>>>>> #2 0x000000000044117a in GarbageCollectorThread ()
>>>>>> #3 0x000000000045413a in XrdClientThreadDispatcher ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 1 (Thread 0x2b53e8698db0 (LWP 10816)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000041f8bd in XrdCnsEvent::Remove ()
>>>>>> #3 0x000000000041ea05 in XrdCnsDaemon::doRequests ()
>>>>>> #4 0x00000000004202d1 in main ()
>>>>>> [root@pcuwdata12 ~]# kill 10816
>>>>>> [root@pcuwdata12 ~]# kill 10816
>>>>>> -bash: kill: (10816) - No such process
>>>>>> [root@pcuwdata12 ~]# ps -ef|grep xrootd-2
>>>>>> xrootd 10798 1 0 Oct02 ? 00:21:21
>>>>>> /opt/xrootd-20090623/bin//xrootd -b -d -R xrootd -l
>>>>>> /tmp/log/xrootd/xrd.log -c /opt/xrootd-20090623/conf/xrdcluster.cfg
>>>>>> xrootd 10809 1 0 Oct02 ? 00:00:05
>>>>>> /opt/xrootd-20090623/bin//cmsd -b -d -R xrootd -l
>>>>>> /tmp/log/xrootd/cms.log -c /opt/xrootd-20090623/conf/xrdcluster.cfg
>>>>>> xrootd 13665 10798 0 21:03 ? 00:00:00
>>>>>> /opt/xrootd-20090623/bin/XrdCnsd -d -l /tmp/log/xrootd/cnsd.log
>>>>>> root://pcuwsun04.cern.ch:1095
>>>>>> root 13678 13340 0 21:03 pts/1 00:00:00 grep xrootd-2
>>>>>> [root@pcuwdata12 ~]# pstack 13665
>>>>>> Thread 8 (Thread 0x4074b940 (LWP 13666)):
>>>>>> #0 0x000000370e40ae00 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
>>>>>> #1 0x0000000000479707 in XrdSysCondVar::Wait ()
>>>>>> #2 0x000000000047b8e9 in XrdScheduler::TimeSched ()
>>>>>> #3 0x000000000047a21d in XrdStartTSched ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 7 (Thread 0x41b0f940 (LWP 13667)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000047ae11 in XrdScheduler::Run ()
>>>>>> #3 0x000000000047a241 in XrdStartWorking ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 6 (Thread 0x41d8c940 (LWP 13668)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000047ae11 in XrdScheduler::Run ()
>>>>>> #3 0x000000000047a241 in XrdStartWorking ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 5 (Thread 0x41e8d940 (LWP 13669)):
>>>>>> #0 0x000000370e40d5cb in read () from /lib64/libpthread.so.0
>>>>>> #1 0x00000000004736b9 in XrdOucStream::GetLine ()
>>>>>> #2 0x000000000041eb06 in XrdCnsDaemon::getEvents ()
>>>>>> #3 0x000000000041dcfc in CnsEvents ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 4 (Thread 0x41f8e940 (LWP 13670)):
>>>>>> #0 0x000000370e40d5cb in read () from /lib64/libpthread.so.0
>>>>>> #1 0x00000000004736b9 in XrdOucStream::GetLine ()
>>>>>> #2 0x000000000041eb06 in XrdCnsDaemon::getEvents ()
>>>>>> #3 0x000000000041dcfc in CnsEvents ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 3 (Thread 0x4208f940 (LWP 13671)):
>>>>>> #0 0x000000370d89a0b1 in nanosleep () from /lib64/libc.so.6
>>>>>> #1 0x000000370d899ed4 in sleep () from /lib64/libc.so.6
>>>>>> #2 0x000000000044117a in GarbageCollectorThread ()
>>>>>> #3 0x000000000045413a in XrdClientThreadDispatcher ()
>>>>>> #4 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #5 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #6 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 2 (Thread 0x41279940 (LWP 13672)):
>>>>>> #0 0x000000370d8cae46 in poll () from /lib64/libc.so.6
>>>>>> #1 0x000000000046b945 in XrdClientSock::RecvRaw ()
>>>>>> #2 0x000000000044e08c in XrdClientPhyConnection::ReadRaw ()
>>>>>> #3 0x000000000044ac3e in XrdClientMessage::ReadRaw ()
>>>>>> #4 0x000000000044e84c in XrdClientPhyConnection::BuildMessage ()
>>>>>> #5 0x000000000044b730 in SocketReaderThread ()
>>>>>> #6 0x000000000045413a in XrdClientThreadDispatcher ()
>>>>>> #7 0x0000000000479637 in XrdSysThread_Xeq ()
>>>>>> #8 0x000000370e4064a7 in start_thread () from /lib64/libpthread.so.0
>>>>>> #9 0x000000370d8d3c2d in clone () from /lib64/libc.so.6
>>>>>> Thread 1 (Thread 0x2b06bb478db0 (LWP 13665)):
>>>>>> #0 0x000000370e40c9b1 in sem_wait () from /lib64/libpthread.so.0
>>>>>> #1 0x000000000041ffb7 in XrdSysSemaphore::Wait ()
>>>>>> #2 0x000000000041f8bd in XrdCnsEvent::Remove ()
>>>>>> #3 0x000000000041ea05 in XrdCnsDaemon::doRequests ()
>>>>>> #4 0x00000000004202d1 in main ()
>>>>>> [root@pcuwdata12 ~]#
>>>>>> [root@pcuwdata12 ~]#
>>>>>>
>>>>>>
>>>>>> (***) cnsd.log
>>>>>> 091006 20:56:10 1828 XrdCnsSched: running underused thread monitor
>>>>>> inq=0
>>>>>> 091006 20:56:10 1828 XrdCnsSched: 2 threads; 1 idle
>>>>>> 091006 20:56:10 1828 XrdCnsSched: scheduling underused thread monitor
>>>>>> in 780 seconds
>>>>>>
>>>>>>
>>>>>> Thanks
>>>>>> Wen
>>>>>>
>>>>>
>>>>>
>>>
>
