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  1. Core Server
  2. SERVER-46388

mongod instance crash after taking successful backup

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Incomplete
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: WiredTiger
    • Labels:
      None
    • Operating System:
      ALL

      Description

      Mongodb version: 4.2.2

      OS Debian 9

      Its a 3 node replica set. We are backing up data from a secondary node. After the backup is complete mongod instance crashes with the following errors.

      Please let me know if any other data is required.

      mongod logs:

      2020-02-25T13:35:01.433+0530 I  NETWORK  [listener] connection accepted from 10.33.145.162:57000 #61 (11 connections now open)
      2020-02-25T13:35:01.434+0530 I  NETWORK  [conn61] received client metadata from 10.33.145.162:57000 conn61: { driver:{ name: "PyMongo", version: "3.4.0" }, os: \{ type: "Linux", name: "debian 9.9", architecture: "x86_64", version: "4.9.0-9-amd64" }, platform: "CPython 2.7.13.final.0" }
      2020-02-25T13:35:01.435+0530 I  NETWORK  [listener] connection accepted from 10.33.145.162:57002 #62 (12 connections now open)
      2020-02-25T13:35:01.435+0530 I  NETWORK  [conn62] received client metadata from 10.33.145.162:57002 conn62: { driver:
      { name: "PyMongo", version: "3.4.0" }, os: \{ type: "Linux", name: "debian 9.9", architecture: "x86_64", version: "4.9.0-9-amd64" }, platform: "CPython 2.7.13.final.0" }
      2020-02-25T13:35:01.955+0530 I  NETWORK  [conn62] end connection 10.33.145.162:57002 (11 connections now open)
      2020-02-25T13:35:01.955+0530 I  NETWORK  [conn61] end connection 10.33.145.162:57000 (10 connections now open)
      2020-02-25T13:36:00.546+0530 I  NETWORK  [listener] connection accepted from 127.0.0.1:47012 #63 (11 connections now open)
      2020-02-25T13:36:00.547+0530 I  NETWORK  [listener] connection accepted from 127.0.0.1:47014 #64 (12 connections now open)
      2020-02-25T13:36:00.567+0530 I  COMMAND  [conn64] CMD fsync: sync:1 lock:1
      2020-02-25T13:36:00.597+0530 W  COMMAND  [fsyncLockWorker] WARNING: instance is locked, blocking all writes. The fsync command has finished execution, remember to unlock the instance using fsyncUnlock().
      2020-02-25T13:36:00.597+0530 I  COMMAND  [conn64] mongod is locked and no writes are allowed. db.fsyncUnlock() to unlock
      2020-02-25T13:36:00.597+0530 I  COMMAND  [conn64] Lock count is 1
      2020-02-25T13:36:00.597+0530 I  COMMAND  [conn64]     For more info see [http://dochub.mongodb.org/core/fsynccommand]
      2020-02-25T13:36:00.954+0530 I  COMMAND  [conn64] command: unlock requested
      2020-02-25T13:36:00.954+0530 I  COMMAND  [conn64] fsyncUnlock completed. mongod is now unlocked and free to accept writes
      2020-02-25T13:36:01.000+0530 E  STORAGE  [ftdc] WiredTiger error (2) [1582617961:760][21181:0x7f331691a700], WT_SESSION.open_cursor: __posix_fs_size, 297: /var/mongo/data/shard1/local/collection-16--4379623760652785123.wt: file-size: stat: No such file or directory Raw: [1582617961:760][21181:0x7f331691a700], WT_SESSION.open_cursor: __posix_fs_size, 297: /var/mongo/data/shard1/local/collection-16--4379623760652785123.wt: file-size: stat: No such file or directory
      2020-02-25T13:36:01.722+0530 E  STORAGE  [thread59] WiredTiger error (2) [1582617961:722427][21181:0x7f331e129700], log-server: __directory_list_worker, 46: /var/mongo/data/shard1/journal: directory-list: opendir: No such file or directory Raw: [1582617961:722427][21181:0x7f331e129700], log-server: __directory_list_worker, 46: /var/mongo/data/shard1/journal: directory-list: opendir: No such file or directory
      2020-02-25T13:36:01.722+0530 E  STORAGE  [thread59] WiredTiger error (2) [1582617961:722510][21181:0x7f331e129700], log-server: __log_prealloc_once, 467: log pre-alloc server error: No such file or directory Raw: [1582617961:722510][21181:0x7f331e129700], log-server: __log_prealloc_once, 467: log pre-alloc server error: No such file or directory
      2020-02-25T13:36:01.722+0530 E  STORAGE  [thread59] WiredTiger error (2) [1582617961:722522][21181:0x7f331e129700], log-server: __log_server, 924: log server error: No such file or directory Raw: [1582617961:722522][21181:0x7f331e129700], log-server: __log_server, 924: log server error: No such file or directory
      2020-02-25T13:36:01.722+0530 E  STORAGE  [thread59] WiredTiger error (-31804) [1582617961:722529][21181:0x7f331e129700], log-server: __wt_panic, 490: the process must exit and restart: WT_PANIC: WiredTiger library panic Raw: [1582617961:722529][21181:0x7f331e129700], log-server: __wt_panic, 490: the process must exit and restart: WT_PANIC: WiredTiger library panic
      2020-02-25T13:36:01.722+0530 F  -        [thread59] Fatal Assertion 50853 at src/mongo/db/storage/wiredtiger/wiredtiger_util.cpp 414
      2020-02-25T13:36:01.722+0530 F  -        [thread59]
       
      ***aborting after fassert() failure
       
      2020-02-25T13:36:01.729+0530 F  -        [thread59] Got signal: 6 (Aborted).
      0x556ba0a6c431 0x556ba0a6bc2e 0x556ba0a6bcc6 0x7f33257c80e0 0x7f332544afff 0x7f332544c42a 0x556b9ef43397 0x556b9ec8eb60 0x556b9f0c194b 0x556b9ec9b920 0x556b9ec9bd84 0x556b9f14773f 0x7f33257be4a4 0x7f3325500d0f
      ----- BEGIN BACKTRACE -----
      {"backtrace":[\\{"b":"556B9E26C000","o":"2800431","s":"_ZN5mongo15printStackTraceERSo"},\{"b":"556B9E26C000","o":"27FFC2E"},\{"b":"556B9E26C000","o":"27FFCC6"},\"b":"7F33257B7000","o":"110E0"},\{"b":"7F3325418000","o":"32FFF","s":"gsignal"},\"b":"7F3325418000","o":"3442A","s":"abort"},"b":"556B9E26C000","o":"CD7397","s":"_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj"},\{"b":"556B9E26C000","o":"A22B60"},\{"b":"556B9E26C000","o":"E5594B"},{"b":"556B9E26C000","o":"A2F920","s":"__wt_err_func"},"b":"556B9E26C000","o":"A2FD84","s":"__wt_panic"},\{"b":"556B9E26C000","o":"EDB73F"},\"b":"7F33257B7000","o":"74A4"},\{"b":"7F3325418000","o":"E8D0F","s":"clone"}],"processInfo":{ "mongodbVersion" : "4.2.2", "gitVersion" : "a0bbbff6ada159e19298d37946ac8dc4b497eadf", "compiledModules" : [], "uname" :{ "sysname" : "Linux", "release" : "4.9.0-9-amd64", "version" : "#1 SMP Debian 4.9.168-1 (2019-04-12)", "machine" : "x86_64" }, "somap" : [ \{ "b" : "556B9E26C000", "elfType" : 3, "buildId" : "16D21155485F2D07AE3FE9CB6ECBA69ABAD58B02" }, \{ "b" : "7FFECFD5B000", "path" : "linux-vdso.so.1", "elfType" : 3, "buildId" : "F7DE400836F149C7FB0DB1F818360A2433E67CB1" }, \{ "b" : "7F3326C17000", "path" : "/usr/lib/x86_64-linux-gnu/libcurl.so.4", "elfType" : 3, "buildId" : "816839E99AF235E30CC31450E2ABFABDAA257D24" }, \{ "b" : "7F3326A00000", "path" : "/lib/x86_64-linux-gnu/libresolv.so.2", "elfType" : 3, "buildId" : "EAD5FD817712E63C1212D1EE7D7EE1B9C29F93A7" }, \{ "b" : "7F3326567000", "path" : "/usr/lib/x86_64-linux-gnu/libcrypto.so.1.1", "elfType" : 3, "buildId" : "A214BCD55713CB1E0B9AA61C07319C9A83A2268C" }, \{ "b" : "7F33262FB000", "path" : "/usr/lib/x86_64-linux-gnu/libssl.so.1.1", "elfType" : 3, "buildId" : "2BEF491D3EF8E727DF943799D1309AA357BA7D4C" }, \{ "b" : "7F33260F7000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "DB2CAEEEC37482A98AB1416D0A9AFE2944930DE9" }, \{ "b" : "7F3325EEF000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "buildId" : "86B35D63FACD97D22973E99EE9863F7714C4F53A" }, \{ "b" : "7F3325BEB000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "4E49714C557CE0472C798F39365CA10F9C0E1933" }, \{ "b" : "7F33259D4000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "51AD5FD294CD6C813BED40717347A53434B80B7A" }, \{ "b" : "7F33257B7000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "16D609487BCC4ACBAC29A4EAA2DDA0D2F56211EC" }, \{ "b" : "7F3325418000", "path" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "775143E680FF0CD4CD51CCE1CE8CA216E635A1D6" }, \{ "b" : "7F3326E97000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3, "buildId" : "606DF9C355103E82140D513BC7A25A635591C153" }, \{ "b" : "7F33251F2000", "path" : "/usr/lib/x86_64-linux-gnu/libnghttp2.so.14", "elfType" : 3, "buildId" : "57FE530E3C6E81FD243F02556CDC09142D176A2E" }, \{ "b" : "7F3324FD0000", "path" : "/usr/lib/x86_64-linux-gnu/libidn2.so.0", "elfType" : 3, "buildId" : "52F90A61AFD6B0605DAC537C5D1B8713E8E93889" }, \{ "b" : "7F3324DB3000", "path" : "/usr/lib/x86_64-linux-gnu/librtmp.so.1", "elfType" : 3, "buildId" : "82864DDD2632F14010AD7740D09B7270901D418D" }, \{ "b" : "7F3324B86000", "path" : "/usr/lib/x86_64-linux-gnu/libssh2.so.1", "elfType" : 3, "buildId" : "E12F1273FAC9E2BE7526C7C60D64CF80F846385D" }, \{ "b" : "7F3324978000", "path" : "/usr/lib/x86_64-linux-gnu/libpsl.so.5", "elfType" : 3, "buildId" : "1667EE4ED5224694326899E760722B7B366CEB41" }, \{ "b" : "7F332470F000", "path" : "/usr/lib/x86_64-linux-gnu/libssl.so.1.0.2", "elfType" : 3, "buildId" : "F365E3485410A0833832DC04313E2318637E6A37" }, \{ "b" : "7F33242A9000", "path" : "/usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.2", "elfType" : 3, "buildId" : "D153794665C673EF207DC199FC6A36C3BB59A8C3" }, \{ "b" : "7F332405E000", "path" : "/usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2", "elfType" : 3, "buildId" : "4986F4E8DB61C236489DDC53213B04DB65A2EAA0" }, \{ "b" : "7F3323D84000", "path" : "/usr/lib/x86_64-linux-gnu/libkrb5.so.3", "elfType" : 3, "buildId" : "811575446A67638D151C4829E7040205D92F9C9B" }, \{ "b" : "7F3323B51000", "path" : "/usr/lib/x86_64-linux-gnu/libk5crypto.so.3", "elfType" : 3, "buildId" : "19CE7A9BC33E0910065BDFE299DCACFF638BF06E" }, \{ "b" : "7F332394D000", "path" : "/lib/x86_64-linux-gnu/libcom_err.so.2", "elfType" : 3, "buildId" : "2EB9256EE03E4D411C25715BB6EC484BF9B09E66" }, \{ "b" : "7F332373E000", "path" : "/usr/lib/x86_64-linux-gnu/liblber-2.4.so.2", "elfType" : 3, "buildId" : "EDE2EA44C0B018BBDB20D71A1C8AC99F0CC3F99F" }, \{ "b" : "7F33234ED000", "path" : "/usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2", "elfType" : 3, "buildId" : "EB45F0CC6A96D38B78D97C87D5D4A3E0706B2079" }, \{ "b" : "7F33232D3000", "path" : "/lib/x86_64-linux-gnu/libz.so.1", "elfType" : 3, "buildId" : "908B5A955D0A73FB8D31E0F927D0CDBA810CB300" }, \{ "b" : "7F3322FBC000", "path" : "/usr/lib/x86_64-linux-gnu/libunistring.so.0", "elfType" : 3, "buildId" : "2E457FF72C4E6A267C0B10E06C3FB8C4F32487EE" }, \{ "b" : "7F3322C23000", "path" : "/usr/lib/x86_64-linux-gnu/libgnutls.so.30", "elfType" : 3, "buildId" : "1C1BC93C559CFE2EBD1B5676FA4B355118EDF38E" }, \{ "b" : "7F33229EE000", "path" : "/usr/lib/x86_64-linux-gnu/libhogweed.so.4", "elfType" : 3, "buildId" : "1D3666D2FA45541887E96DED01529116996812AD" }, \{ "b" : "7F33227B7000", "path" : "/usr/lib/x86_64-linux-gnu/libnettle.so.6", "elfType" : 3, "buildId" : "43D18C6AB6EDE083BE2C5FAA857E379389819ACB" }, \{ "b" : "7F3322534000", "path" : "/usr/lib/x86_64-linux-gnu/libgmp.so.10", "elfType" : 3, "buildId" : "45ACF9508A033A2AE2672156491BC524A3BF20CD" }, \{ "b" : "7F3322224000", "path" : "/lib/x86_64-linux-gnu/libgcrypt.so.20", "elfType" : 3, "buildId" : "917AB7D78C8C49FE3095ABFF95FAB28575D704BB" }, \{ "b" : "7F3322018000", "path" : "/usr/lib/x86_64-linux-gnu/libkrb5support.so.0", "elfType" : 3, "buildId" : "932297A42269A54BCDB88198BA06BD63B13E1996" }, \{ "b" : "7F3321E14000", "path" : "/lib/x86_64-linux-gnu/libkeyutils.so.1", "elfType" : 3, "buildId" : "3CFF3CE519A16305A617D8885EA5D3AE3D965461" }, \{ "b" : "7F3321BF9000", "path" : "/usr/lib/x86_64-linux-gnu/libsasl2.so.2", "elfType" : 3, "buildId" : "A54D193AB95897B4BFE387E6578064711115AB75" }, \{ "b" : "7F3321994000", "path" : "/usr/lib/x86_64-linux-gnu/libp11-kit.so.0", "elfType" : 3, "buildId" : "86F00B032B270ED5297EB393B30EDEF76B890573" }, \{ "b" : "7F3321760000", "path" : "/lib/x86_64-linux-gnu/libidn.so.11", "elfType" : 3, "buildId" : "CCC0C44563E10F70FCF98D0C7AFABC9801F7159B" }, \{ "b" : "7F332154D000", "path" : "/usr/lib/x86_64-linux-gnu/libtasn1.so.6", "elfType" : 3, "buildId" : "D03612373D33091A4678A032C5D7341FB56FE7DC" }, \{ "b" : "7F3321339000", "path" : "/lib/x86_64-linux-gnu/libgpg-error.so.0", "elfType" : 3, "buildId" : "8B9D1F17D242A08FEA23AF32055037569A714209" }, \{ "b" : "7F3321130000", "path" : "/usr/lib/x86_64-linux-gnu/libffi.so.6", "elfType" : 3, "buildId" : "AA1401F42D517693444B96C5774A62D4E8C84A35" } ] }}
      mongod(_ZN5mongo15printStackTraceERSo+0x41) [0x556ba0a6c431]
      mongod(+0x27FFC2E) [0x556ba0a6bc2e]
      mongod(+0x27FFCC6) [0x556ba0a6bcc6]
      libpthread.so.0(+0x110E0) [0x7f33257c80e0]
      libc.so.6(gsignal+0xCF) [0x7f332544afff]
      libc.so.6(abort+0x16A) [0x7f332544c42a]
      mongod(_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj+0x0) [0x556b9ef43397]
      mongod(+0xA22B60) [0x556b9ec8eb60]
      mongod(+0xE5594B) [0x556b9f0c194b]
      mongod(__wt_err_func+0x90) [0x556b9ec9b920]
      mongod(__wt_panic+0x39) [0x556b9ec9bd84]
      mongod(+0xEDB73F) [0x556b9f14773f]
      libpthread.so.0(+0x74A4) [0x7f33257be4a4]
      libc.so.6(clone+0x3F) [0x7f3325500d0f]
      -----  END BACKTRACE  -----
      2020-02-25T14:47:56.283+0530 I  CONTROL  [main] ***** SERVER RESTARTED *****
      

       

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            Assignee:
            eric.sedor Eric Sedor
            Reporter:
            goyalsamarth1995@gmail.com Samarth Goyal
            Participants:
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            1 Vote for this issue
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            8 Start watching this issue

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              Created:
              Updated:
              Resolved: