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  1. Core Server
  2. SERVER-19322

Segmentation fault during replication in a sharded replicated mongodb environment

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    • Type: Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Priority: Icon: Critical - P2 Critical - P2
    • None
    • Affects Version/s: 3.0.3
    • Component/s: Replication
    • None
    • ALL
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      Deployment Environment:
      =======================
      Ubuntu 14.04.
      Shared Replica Set Deployment.

      Have a Primary sharded mongodb server mongodb1 (priority set to 2) and has data sharded. Add replicate set members mongodb0 (priority set to 3) and mongodb2 (priority set to 1). Data starts syncing to replica set members mongodb0 and mongodb2. As soon as mongodb0 transitions from STARTUP2 to PRIMARY mongod process on mongodb2 fails with the above mentioned stack trace.

      mongod instance running on mongodb0 transitions to primary :
      2015-07-07T01:42:11.940+0000 I REPL [ReplicationExecutor] transition to PRIMARY

      mongod instance running on mongodb2 fails with segmentation fault :
      2015-07-07T01:42:21.012+0000 F - Invalid access at address: 0xc8
      2015-07-07T01:42:21.055+0000 F - Got signal: 11 (Segmentation fault).

      This process used to run fine until WiredTiger Upgrade.

      Show
      Deployment Environment: ======================= Ubuntu 14.04. Shared Replica Set Deployment. Have a Primary sharded mongodb server mongodb1 (priority set to 2) and has data sharded. Add replicate set members mongodb0 (priority set to 3) and mongodb2 (priority set to 1). Data starts syncing to replica set members mongodb0 and mongodb2. As soon as mongodb0 transitions from STARTUP2 to PRIMARY mongod process on mongodb2 fails with the above mentioned stack trace. mongod instance running on mongodb0 transitions to primary : 2015-07-07T01:42:11.940+0000 I REPL [ReplicationExecutor] transition to PRIMARY mongod instance running on mongodb2 fails with segmentation fault : 2015-07-07T01:42:21.012+0000 F - Invalid access at address: 0xc8 2015-07-07T01:42:21.055+0000 F - Got signal: 11 (Segmentation fault). This process used to run fine until WiredTiger Upgrade.

      We have 3 mongodb servers mongodb0 (priority=3), mongodb1 (priority=2) and mongodb2 (priority=1). mongodb1 has full data and we start data sync to empty mongodb0 and mongodb2 machines by adding them as replica set members.

      As soon as mongodb0 sync completes successfully and transitions to primary mongodb2 sync stops and fails with Segmentation fault Error. This process used to run fine until WiredTiger Upgrade. This process used to run fine until WiredTiger Upgrade.

      Error Stack Trace:
      ==================

      2015-07-07T01:42:21.012+0000 F -        Invalid access at address: 0xc8
2015-07-07T01:42:21.055+0000 F -        Got signal: 11 (Segmentation fault).

0xf51949 0xf51212 0xf5156e 0x7f0f37228340 0x13652c1 0x13668b3 0x1368ae3 0x1339b74 0x133757d 0x133968c 0x7f0f37220182 0x7f0f35ce930d
----- BEGIN BACKTRACE -----
{"backtrace":[{"b":"400000","o":"B51949"},{"b":"400000","o":"B51212"},{"b":"400000","o":"B5156E"},{"b":"7F0F37218000","o":"10340"},{"b":"400000","o":"F652C1"},{"b":"400000","o":"F668B3"},{"b":"400000","o":"F68AE3"},{"b":"400000","o":"F39B74"},{"b":"400000","o":"F3757D"},{"b":"400000","o":"F3968C"},{"b":"7F0F37218000","o":"8182"},{"b":"7F0F35BEE000","o":"FB30D"}],"processInfo":{ "mongodbVersion" : "3.0.3", "gitVersion" : "b40106b36eecd1b4407eb1ad1af6bc60593c6105", "uname" : { "sysname" : "Linux", "release" : "3.13.0-29-generic", "version" : "#53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000", "buildId" : "F56F80CB96B4DBFC070BEB0ADAC7D6B274BFC6B1" }, { "b" : "7FFF0EAFE000", "elfType" : 3, "buildId" : "3D068D088E7EAC15D9DA7C3AC912E783C0897EE7" }, { "b" : "7F0F37218000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "FE662C4D7B14EE804E0C1902FB55218A106BC5CB" }, { "b" : "7F0F36FBA000", "path" : "/lib/x86_64-linux-gnu/libssl.so.1.0.0", "elfType" : 3, "buildId" : "6C7AE380840DB9034D7763771B55E51B31BCAF14" }, { "b" : "7F0F36BE0000", "path" : "/lib/x86_64-linux-gnu/libcrypto.so.1.0.0", "elfType" : 3, "buildId" : "3D522D8E04F5FD7904AE69B50CA8835A71024490" }, { "b" : "7F0F369D8000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "buildId" : "92FCF41EFE012D6186E31A59AD05BDBB487769AB" }, { "b" : "7F0F367D4000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "C1AE4CB7195D337A77A3C689051DABAA3980CA0C" }, { "b" : "7F0F364D0000", "path" : "/usr/lib/x86_64-linux-gnu/libstdc++.so.6", "elfType" : 3, "buildId" : "19EFDDAB11B3BF5C71570078C59F91CF6592CE9E" }, { "b" : "7F0F361CA000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "574C6350381DA194C00FF555E0C1784618C05569" }, { "b" : "7F0F35FB4000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "CC0D578C2E0D86237CA7B0CE8913261C506A629A" }, { "b" : "7F0F35BEE000", "path" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "B571F83A8A6F5BB22D3558CDDDA9F943A2A67FD1" }, { "b" : "7F0F37436000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3, "buildId" : "9F00581AB3C73E3AEA35995A0C50D24D59A01D47" } ] }}
 mongod(_ZN5mongo15printStackTraceERSo+0x29) [0xf51949]
 mongod(+0xB51212) [0xf51212]
 mongod(+0xB5156E) [0xf5156e]
 libpthread.so.0(+0x10340) [0x7f0f37228340]
 mongod(+0xF652C1) [0x13652c1]
 mongod(+0xF668B3) [0x13668b3]
 mongod(__wt_reconcile+0x1B3) [0x1368ae3]
 mongod(__wt_evict+0x104) [0x1339b74]
 mongod(__wt_evict_page+0x2D) [0x133757d]
 mongod(+0xF3968C) [0x133968c]
 libpthread.so.0(+0x8182) [0x7f0f37220182]
 libc.so.6(clone+0x6D) [0x7f0f35ce930d]
-----  END BACKTRACE  -----

            Assignee:
            sam.kleinman Sam Kleinman (Inactive)
            Reporter:
            praveenak Praveen Akinapally
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              Created:
              Updated:
              Resolved: