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  1. Core Server
  2. SERVER-21983

3.2.0 mongos crash - Invariant failure iter != pool.end() src/mongo/executor/connection_pool.cpp 572

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Duplicate
    • Affects Version/s: 3.2.0
    • Fix Version/s: None
    • Component/s: Networking
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL

      Description

      I had the following crash in mongos 3.2.0:

      2015-12-21T18:38:09.940+0000 I -        [NetworkInterfaceASIO-TaskExecutorPool-0-0] Invariant failure iter != pool.end() src/mongo/executor/connection_pool.cpp 572
      2015-12-21T18:38:09.940+0000 I -        [NetworkInterfaceASIO-TaskExecutorPool-0-0] 
       
      ***aborting after invariant() failure
       
       
      2015-12-21T18:38:09.945+0000 I ASIO     [NetworkInterfaceASIO-TaskExecutorPool-4-0] Successfully connected to mongo-repl02a-int.sys.timedoctor.com:27017
      2015-12-21T18:38:10.175+0000 F -        [NetworkInterfaceASIO-TaskExecutorPool-0-0] Got signal: 6 (Aborted).
       
       0xc308a2 0xc2fa09 0xc30212 0x7f7084bda340 0x7f708483bcc9 0x7f708483f0d8 0xbb9a1b 0x9d2ba0 0x9d4601 0x9d790c 0x9d8487 0x9d8bf1 0xc4c541 0xc4c761 0xc508ff 0x9e1c95 0x7f70853b5a40 0x7f7084bd2182 0x7f70848ff47d
      ----- BEGIN BACKTRACE -----
      {"backtrace":[{"b":"400000","o":"8308A2"},{"b":"400000","o":"82FA09"},{"b":"400000","o":"830212"},{"b":"7F7084BCA000","o":"10340"},{"b":"7F7084805000","o":"36CC9"},{"b":"7F7084805000","o":"3A0D8"},{"b":"400000","o":"7B9A1B"},{"b":"400000","o":"5D2BA0"},{"b":"400000","o":"5D4601"},{"b":"400000","o":"5D790C"},{"b":"400000","o":"5D8487"},{"b":"400000","o":"5D8BF1"},{"b":"400000","o":"84C541"},{"b":"400000","o":"84C761"},{"b":"400000","o":"8508FF"},{"b":"400000","o":"5E1C95"},{"b":"7F7085304000","o":"B1A40"},{"b":"7F7084BCA000","o":"8182"},{"b":"7F7084805000","o":"FA47D"}],"processInfo":{ "mongodbVersion" : "3.2.0", "gitVersion" : "45d947729a0315accb6d4f15a6b06be6d9c19fe7", "compiledModules" : [], "uname" : { "sysname" : "Linux", "release" : "3.13.0-68-generic", "version" : "#111-Ubuntu SMP Fri Nov 6 18:17:06 UTC 2015", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000", "buildId" : "A18BC687493736D021F38FBBEBCFB4A7158CD3FF" }, { "b" : "7FFE50802000", "elfType" : 3, "buildId" : "03ABCC13B5E582D807C343784BC60CEAE03D36D1" }, { "b" : "7F7085DEF000", "path" : "/lib/x86_64-linux-gnu/libssl.so.1.0.0", "elfType" : 3, "buildId" : "D08DD65F97859C71BB2CBBF1043BD968EFE18AAD" }, { "b" : "7F7085A14000", "path" : "/lib/x86_64-linux-gnu/libcrypto.so.1.0.0", "elfType" : 3, "buildId" : "F86FA9FB4ECEB4E06B40DBDF761A4172B70A4229" }, { "b" : "7F708580C000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "buildId" : "92FCF41EFE012D6186E31A59AD05BDBB487769AB" }, { "b" : "7F7085608000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "C1AE4CB7195D337A77A3C689051DABAA3980CA0C" }, { "b" : "7F7085304000", "path" : "/usr/lib/x86_64-linux-gnu/libstdc++.so.6", "elfType" : 3, "buildId" : "4BF6F7ADD8244AD86008E6BF40D90F8873892197" }, { "b" : "7F7084FFE000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "1D76B71E905CB867B27CEF230FCB20F01A3178F5" }, { "b" : "7F7084DE8000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "8D0AA71411580EE6C08809695C3984769F25725B" }, { "b" : "7F7084BCA000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "9318E8AF0BFBE444731BB0461202EF57F7C39542" }, { "b" : "7F7084805000", "path" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "30C94DC66A1FE95180C3D68D2B89E576D5AE213C" }, { "b" : "7F708604E000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3, "buildId" : "9F00581AB3C73E3AEA35995A0C50D24D59A01D47" } ] }}
       mongos(_ZN5mongo15printStackTraceERSo+0x32) [0xc308a2]
       mongos(+0x82FA09) [0xc2fa09]
       mongos(+0x830212) [0xc30212]
       libpthread.so.0(+0x10340) [0x7f7084bda340]
       libc.so.6(gsignal+0x39) [0x7f708483bcc9]
       libc.so.6(abort+0x148) [0x7f708483f0d8]
       mongos(_ZN5mongo15invariantFailedEPKcS1_j+0xCB) [0xbb9a1b]
       mongos(_ZN5mongo8executor14ConnectionPool12SpecificPool22takeFromProcessingPoolEPNS1_19ConnectionInterfaceE+0x0) [0x9d2ba0]
       mongos(+0x5D4601) [0x9d4601]
       mongos(+0x5D790C) [0x9d790c]
       mongos(+0x5D8487) [0x9d8487]
       mongos(+0x5D8BF1) [0x9d8bf1]
       mongos(_ZN4asio6detail9scheduler10do_run_oneERNS0_11scoped_lockINS0_11posix_mutexEEERNS0_21scheduler_thread_infoERKSt10error_code+0x2F1) [0xc4c541]
       mongos(_ZN4asio6detail9scheduler3runERSt10error_code+0xC1) [0xc4c761]
       mongos(_ZN4asio10io_service3runEv+0x2F) [0xc508ff]
       mongos(+0x5E1C95) [0x9e1c95]
       libstdc++.so.6(+0xB1A40) [0x7f70853b5a40]
       libpthread.so.0(+0x8182) [0x7f7084bd2182]
       libc.so.6(clone+0x6D) [0x7f70848ff47d]
      -----  END BACKTRACE  -----
      

      That's on Ubuntu 14.04, 64 bit, with the following mongo packages installed:

      # dpkg -l|grep mongo
      ii  mongodb-org-mongos                       3.2.0                                amd64        MongoDB sharded cluster query router
      ii  mongodb-org-shell                        3.2.0                                amd64        MongoDB shell client
      ii  mongodb-org-tools                        3.2.0                                amd64        MongoDB tools
      

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