Re: pgadmin--pgagent---the process hang by unknow reasons

Hi

Given the libwx* references in your stacktrace, you appear to be using an
old version of pgagent - we removed the dependency on wxWidgets nearly 2.5
years ago and replaced it with Boost.

Please upgrade and try again.

Thanks.

On Thu, Nov 26, 2020 at 8:05 AM Zhiyu ZY13 Xu <xuzy13(at)lenovo(dot)com> wrote:

> Hi Support
>
>
>
> I using pgagent over 2 years. There are over 30 jobs running by
> pgagent. Recently. I found a problem that sometime the pgagent hang by
> unknow reasons.
>
> From the stack information. Look like the pagent experience dead-lock
> issue in code.
>
> The stack display many thread stop on this function “in __lll_lock_wait”
>
> If you need more information. Please let me know. I suspect this is a
> bug.
>
>
>
> I collect to pgagent trace log and stack information on the attachment.
>
>
>
> pgagent trace log
>
> pg_agent_11_24.log
>
> pg_agent_11_26.log
>
> pgagent process stack
>
> others information.
>
>
>
>
>
>
>
> version:
>
> pgagent_10-3.4.0-10.rhel6.x86_64
>
> PG 10.5
>
>
>
> The typical stack information.
>
>
>
> [postgres(at)sltfjfrauxq pgagent_pd]$ cat 23389.stark.1
>
> Thread 7 (Thread 0x7ff745f5c700 (LWP 906)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15b819 in DBconn::Return() ()
>
> #5 0x00007ff74c161217 in Job::Execute() ()
>
> #6 0x00007ff74c162899 in JobThread::Entry() ()
>
> #7 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #8 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #9 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 6 (Thread 0x7ff72ffff700 (LWP 908)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15b819 in DBconn::Return() ()
>
> #5 0x00007ff74c161217 in Job::Execute() ()
>
> #6 0x00007ff74c162899 in JobThread::Entry() ()
>
> #7 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #8 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #9 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 5 (Thread 0x7ff74695d700 (LWP 910)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15b819 in DBconn::Return() ()
>
> #5 0x00007ff74c161217 in Job::Execute() ()
>
> #6 0x00007ff74c162899 in JobThread::Entry() ()
>
> #7 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #8 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #9 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 4 (Thread 0x7ff74735e700 (LWP 1565)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15b819 in DBconn::Return() ()
>
> #5 0x00007ff74c161217 in Job::Execute() ()
>
> #6 0x00007ff74c162899 in JobThread::Entry() ()
>
> #7 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #8 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #9 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 3 (Thread 0x7ff74555b700 (LWP 1567)):
>
> #0 0x00007ff74ad40403 in poll () from /lib64/libc.so.6
>
> #1 0x00007ff74bd1c28f in ?? () from /usr/lib64/libpq.so.5
>
> #2 0x00007ff74bd1c310 in ?? () from /usr/lib64/libpq.so.5
>
> #3 0x00007ff74bd178e2 in ?? () from /usr/lib64/libpq.so.5
>
> #4 0x00007ff74bd1865f in PQconnectdb () from /usr/lib64/libpq.so.5
>
> #5 0x00007ff74c15ad71 in DBconn::Connect(wxString const&) ()
>
> #6 0x00007ff74c15af73 in DBconn::DBconn(wxString const&, wxString const&)
> ()
>
> #7 0x00007ff74c15bfe8 in DBconn::Get(wxString const&, wxString const&) ()
>
> #8 0x00007ff74c16108f in Job::Execute() ()
>
> #9 0x00007ff74c162899 in JobThread::Entry() ()
>
> #10 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #11 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #12 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 2 (Thread 0x7ff744b5a700 (LWP 1569)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15bf6b in DBconn::Get(wxString const&, wxString const&) ()
>
> #5 0x00007ff74c16108f in Job::Execute() ()
>
> #6 0x00007ff74c162899 in JobThread::Entry() ()
>
> #7 0x00007ff74ba99021 in wxThreadInternal::PthreadStart(wxThread*) ()
> from /usr/lib64/libwx_baseu-2.8.so.0
>
> #8 0x00007ff74affcaa1 in start_thread () from /lib64/libpthread.so.0
>
> #9 0x00007ff74ad49c4d in clone () from /lib64/libc.so.6
>
> Thread 1 (Thread 0x7ff74c3507e0 (LWP 23389)):
>
> #0 0x00007ff74b003334 in __lll_lock_wait () from /lib64/libpthread.so.0
>
> #1 0x00007ff74affe5d8 in _L_lock_854 () from /lib64/libpthread.so.0
>
> #2 0x00007ff74affe4a7 in pthread_mutex_lock () from /lib64/libpthread.so.0
>
> #3 0x00007ff74ba979c9 in wxMutexInternal::Lock() () from
> /usr/lib64/libwx_baseu-2.8.so.0
>
> #4 0x00007ff74c15a99d in DBconn::ClearConnections(bool) ()
>
> #5 0x00007ff74c15e908 in MainRestartLoop(DBconn*) ()
>
> #6 0x00007ff74c15f2a3 in MainLoop() ()
>
> #7 0x00007ff74c15e016 in main ()
>
>
>
>
>
> 徐志宇（Jack）
>
> Database Engineer
>
>
>
> DB Team,ITS. Lenovo China
>
> Phone: 86-18910860709
>
> Email:xuzy13(at)lenovo(dot)com
>
> No.6 Shangdi West Road, Haidian District Beijing, China, 100085
>
>
>

--
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

EDB: http://www.enterprisedb.com