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  1. Couchbase Server
  2. MB-24472

Segfault in memcached in longevity test

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • 5.0.0
    • 5.0.0
    • couchbase-bucket
    • None
    • Untriaged
    • Unknown

    Description

      As seen in MB-24455. Please reference log files from there.

      In the babysitter logs on .106.14 we see that memcached exited with 139 - i.e. segfault.

      [ns_server:info,2017-05-18T19:52:32.830-07:00,babysitter_of_ns_1@127.0.0.1:<0.14207.18>:supervisor_cushion:handle_info:58]Cushion managed supervisor for memcached failed:  {abnormal,139}
      

      And we've got a backtrace in memcached:

      017-05-18T19:52:32.586140-07:00 WARNING Breakpad caught crash in memcached version 5.0.0-2873. Writing crash dump to /opt/couchbase/var/lib/couchbase/crash/3d54778e-0923-b640-5449866b-5d8815aa.dmp before terminating.
      2017-05-18T19:52:32.586184-07:00 WARNING Stack backtrace of crashed thread:
      2017-05-18T19:52:32.586415-07:00 WARNING     /opt/couchbase/bin/memcached() [0x434da5]
      2017-05-18T19:52:32.586446-07:00 WARNING     /opt/couchbase/bin/memcached(_ZN15google_breakpad16ExceptionHandler12GenerateDumpEPNS0_12CrashContextE+0x3d4) [0x487384]
      2017-05-18T19:52:32.586461-07:00 WARNING     /opt/couchbase/bin/memcached(_ZN15google_breakpad16ExceptionHandler13SignalHandlerEiP9siginfo_tPv+0x97) [0x487697]
      2017-05-18T19:52:32.586474-07:00 WARNING     /lib/x86_64-linux-gnu/libpthread.so.0() [0x7fae217cb340]
      2017-05-18T19:52:32.586487-07:00 WARNING     /opt/couchbase/bin/../lib/../lib/ep.so() [0x7fae1c8dc392]
      2017-05-18T19:52:32.586496-07:00 WARNING     /opt/couchbase/bin/../lib/../lib/ep.so() [0x7fae1c8ca7cb]
      2017-05-18T19:52:32.586504-07:00 WARNING     /opt/couchbase/bin/../lib/../lib/ep.so() [0x7fae1c8d2807]
      2017-05-18T19:52:32.586512-07:00 WARNING     /opt/couchbase/bin/../lib/../lib/ep.so() [0x7fae1c8d2c68]
      2017-05-18T19:52:32.586522-07:00 WARNING     /opt/couchbase/bin/memcached() [0x46906a]
      2017-05-18T19:52:32.586531-07:00 WARNING     /opt/couchbase/bin/memcached() [0x46a074]
      2017-05-18T19:52:32.586540-07:00 WARNING     /opt/couchbase/bin/memcached() [0x44c92a]
      2017-05-18T19:52:32.586548-07:00 WARNING     /opt/couchbase/bin/memcached() [0x4511df]
      2017-05-18T19:52:32.586557-07:00 WARNING     /opt/couchbase/bin/memcached() [0x46cdbf]
      2017-05-18T19:52:32.586565-07:00 WARNING     /opt/couchbase/bin/memcached() [0x43fc98]
      2017-05-18T19:52:32.586572-07:00 WARNING     /opt/couchbase/bin/memcached() [0x43fcdb]
      2017-05-18T19:52:32.586580-07:00 WARNING     /opt/couchbase/bin/memcached() [0x442ff0]
      2017-05-18T19:52:32.586589-07:00 WARNING     /opt/couchbase/bin/memcached() [0x417c9c]
      2017-05-18T19:52:32.586601-07:00 WARNING     /opt/couchbase/bin/../lib/libevent_core.so.2.1.8() [0x7fae2132ea4c]
      2017-05-18T19:52:32.586611-07:00 WARNING     /opt/couchbase/bin/../lib/libevent_core.so.2.1.8(event_base_loop+0x46f) [0x7fae21331e9f]
      2017-05-18T19:52:32.586620-07:00 WARNING     /opt/couchbase/bin/memcached() [0x4300f4]
      2017-05-18T19:52:32.586629-07:00 WARNING     /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0() [0x7fae21bfdc9e]
      2017-05-18T19:52:32.586640-07:00 WARNING     /lib/x86_64-linux-gnu/libpthread.so.0() [0x7fae217c3182]
      2017-05-18T19:52:32.586675-07:00 WARNING     /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fae202ec47d]
      

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              dfinlay Dave Finlay
              dfinlay Dave Finlay
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