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Posted to dev@qpid.apache.org by "Ivan Sudakov (Jira)" <ji...@apache.org> on 2021/09/16 07:06:00 UTC
[jira] [Commented] (QPID-8512) QPID threads hang on shutdown
[ https://issues.apache.org/jira/browse/QPID-8512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17415926#comment-17415926 ]
Ivan Sudakov commented on QPID-8512:
------------------------------------
The same problem exists on Windows 7, but my program crashes on shutdown only in release build
On Fedora 31, the program hangs for a minute on shutdown and then exits normally
> QPID threads hang on shutdown
> -----------------------------
>
> Key: QPID-8512
> URL: https://issues.apache.org/jira/browse/QPID-8512
> Project: Qpid
> Issue Type: Bug
> Components: C++ Client
> Environment: QPID 0.8 on SuSE Linux Enterprise Server 15 (SLES), Service Pack 2 (SP2) (SLES 15 SP2)
> Reporter: Karthik
> Priority: Major
>
> QPID Threads in the client hang on shutdown. This issue seems to specifically occur in SLES 15 SP2 (SuSE Linux Service Pack 2). It was working fine on SLES 15 SP1 and older versions like SLES11, 12 etc.
> QPID Client/Broker Version: 0.8
> On debugging into the QPID code, observed that the hang occurs in this function and in the ::epoll_wait call.
> *Code-Reference*:
> {{*qpid/sys/epoll/EpollPoller.cpp*}}
> {{Poller::Event Poller::wait(Duration timeout) {}}
> {{ .}}{{..}}
> {{ *int rc = ::epoll_wait(impl->epollFd, &epe, 1, timeoutMs);*}}
> {{ ...}}
> {{}}}
>
> Thread backtrace on shutdown which hang:
> {{Thread }}{{8}} {{(Thread }}{{0x7fffe27fc700}} {{(LWP }}{{29944}}{{)):}}
> {{#}}{{0}} {{0x00007ffff2dff126}} {{in epoll_pwait () from /lib64/libc.so.}}{{6}}
> {{#}}{{1}} {{0x00007ffff5abc461}} {{in qpid::sys::Poller::wait (}}{{this}}{{=}}{{0x6eb230}}{{, timeout=...) at qpid/sys/epoll/EpollPoller.cpp:}}{{568}}
> {{#}}{{2}} {{0x00007ffff5abcf31}} {{in qpid::sys::Poller::run (}}{{this}}{{=}}{{0x6eb230}}{{) at qpid/sys/epoll/EpollPoller.cpp:}}{{518}}
> {{#}}{{3}} {{0x00007ffff5ab3caa}} {{in qpid::sys::(anonymous namespace)::runRunnable (p=}}{{0x6}}{{) at qpid/sys/posix/Thread.cpp:}}{{35}}
> {{#}}{{4}} {{0x00007ffff77b44f9}} {{in start_thread () from /lib64/libpthread.so.}}{{0}}
> {{#}}{{5}} {{0x00007ffff2dfefbf}} {{in clone () from /lib64/libc.so.}}{{6}}
>
> {{Thread }}{{3}} {{(Thread }}{{0x7ffff1681700}} {{(LWP }}{{29939}}{{)):}}
> {{#}}{{0}} {{0x00007ffff2dff126}} {{in epoll_pwait () from /lib64/libc.so.}}{{6}}
> {{#}}{{1}} {{0x00007ffff5abc461}} {{in qpid::sys::Poller::wait (}}{{this}}{{=}}{{0x6eb230}}{{, timeout=...) at qpid/sys/epoll/EpollPoller.cpp:}}{{568}}
> {{#}}{{2}} {{0x00007ffff5abcf31}} {{in qpid::sys::Poller::run (}}{{this}}{{=}}{{0x6eb230}}{{) at qpid/sys/epoll/EpollPoller.cpp:}}{{518}}
> {{#}}{{3}} {{0x00007ffff5ab3caa}} {{in qpid::sys::(anonymous namespace)::runRunnable (p=}}{{0x6}}{{) at qpid/sys/posix/Thread.cpp:}}{{35}}
> {{#}}{{4}} {{0x00007ffff77b44f9}} {{in start_thread () from /lib64/libpthread.so.}}{{0}}
> {{#}}{{5}} {{0x00007ffff2dfefbf}} {{in clone () from /lib64/libc.so.}}{{6}}
>
> {{Thread }}{{1}} {{(Thread }}{{0x7ffff7fb97c0}} {{(LWP }}{{29842}}{{)):}}
> {{#}}{{0}} {{0x00007ffff77b58bd}} {{in pthread_join () from /lib64/libpthread.so.}}{{0}}
> {{#}}{{1}} {{0x00007ffff5ab3db3}} {{in qpid::sys::Thread::join (}}{{this}}{{=<optimized out>) at qpid/sys/posix/Thread.cpp:}}{{70}}
> {{#}}{{2}} {{0x00007ffff5716b09}} {{in qpid::client::(anonymous namespace)::IOThread::~IOThread (}}{{this}}{{=}}{{0x7ffff597b6a0}} {{<qpid::client::(anonymous namespace)::theIO()::io>, __in_chrg=<optimized out>) at qpid/client/ConnectionImpl.cpp:}}{{140}}
> {{#}}{{3}} {{0x00007ffff2d3f138}} {{in __run_exit_handlers () from /lib64/libc.so.}}{{6}}
> {{#}}{{4}} {{0x00007ffff2d3f18a}} {{in exit () from /lib64/libc.so.}}{{6}}
> {{#}}{{5}} {{0x00007ffff2d27351}} {{in __libc_start_main () from /lib64/libc.so.}}{{6}}
> {{#}}{{6}} {{0x000000000040f179}} {{in _start () at ../sysdeps/x86_64/elf/start.S:}}{{113}}
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