OPERATIONAL DEFECT DATABASE
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I upgraded mongodb-org from 3.0 to 3.4 while upgrading the OS from Ubuntu 14.04 LTS to 16.04 LTS. Each time Backtrace: 2017-08-12T11:06:51.907+0000 F - [TTLMonitor] Got signal: 6 (Aborted). 0x562ddec7aea1 0x562ddec7a0b9 0x562ddec7a59d 0x7f977e594390 0x7f977e1ee428 0x7f977e1f002a 0x562dddf29733 0x562dde939f76 0x562dde939fa5 0x562dde94e8ad 0x562dde94eab7 0x562dde2ee9 bb 0x562dde295626 0x562dde2b7073 0x562dde291ab3 0x562dde2b7073 0x562dde5bc56a 0x562dde5bce8b 0x562dde5bcfbd 0x562dde997427 0x562dde99858a 0x562dde998cc8 0x562ddebed6c1 0x562ddf6e f430 0x7f977e58a6ba 0x7f977e2c03dd ----- BEGIN BACKTRACE ----- {"backtrace":[{"b":"562DDD70F000","o":"156BEA1","s":"_ZN5mongo15printStackTraceERSo"},{"b":"562DDD70F000","o":"156B0B9"},{"b":"562DDD70F000","o":"156B59D"},{"b":"7F977E583000","o ":"11390"},{"b":"7F977E1B9000","o":"35428","s":"gsignal"},{"b":"7F977E1B9000","o":"3702A","s":"abort"},{"b":"562DDD70F000","o":"81A733","s":"_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj"},{"b":"562DDD70F000","o":"122AF76"},{"b":"562DDD70F000","o":"122AFA5","s":"_ZNK5mongo17RecordStoreV1Base13getNextRecordEPNS_16OperationContextERKNS_7DiskLocE"},{"b":"562DDD70F000","o":"123F8AD","s":"_ZN5mongo27SimpleRecordStoreV1Iterator7advanceEv"},{"b":"562DDD70F000","o":"123FAB7","s":"_ZN5mongo27SimpleRecordStoreV1Iterator9seekExactERKNS_8RecordIdE"},{"b":"562DDD70F000","o":"BDF9BB","s":"_ZN5mongo16WorkingSetCommon5fetchEPNS_16OperationContextEPNS_10WorkingSetEmNS_11unowned_ptrINS_20SeekableRecordCursorEEE"},{"b":"562DDD70F000","o":"B86626","s":"_ZN5mongo10FetchStage6doWorkEPm"},{"b":"562DDD70F000","o":"BA8073","s":"_ZN5mongo9PlanStage4workEPm"},{"b":"562DDD70F000","o":"B82AB3","s":"_ZN5mongo11DeleteStage6doWorkEPm"},{"b":"562DDD70F000","o":"BA8073","s":"_ZN5mongo9PlanStage4workEPm"},{"b":"562DDD70F000","o":"EAD56A","s":"_ZN5mongo12PlanExecutor11getNextImplEPNS_11SnapshottedINS_7BSONObjEEEPNS_8RecordIdE"},{"b":"562DDD70F000","o":"EADE8B","s":"_ZN5mongo12PlanExecutor7getNextEPNS_7BSONObjEPNS_8RecordIdE"},{"b":"562DDD70F000","o":"EADFBD","s":"_ZN5mongo12PlanExecutor11executePlanEv"},{"b":"562DDD70F000","o":"1288427","s":"_ZN5mongo10TTLMonitor13doTTLForIndexEPNS_16OperationContextENS_7BSONObjE"},{"b":"562DDD70F000","o":"128958A","s":"_ZN5mongo10TTLMonitor9doTTLPassEv"},{"b":"562DDD70F000","o":"1289CC8","s":"_ZN5mongo10TTLMonitor3runEv"},{"b":"562DDD70F000","o":"14DE6C1","s":"_ZN5mongo13BackgroundJob7jobBodyEv"},{"b":"562DDD70F000","o":"1FE0430"},{"b":"7F977E583000","o":"76BA"},{"b":"7F977E1B9000","o":"1073DD","s":"clone"}],"processInfo":{ "mongodbVersion" : "3.4.7", "gitVersion" : "cf38c1b8a0a8dca4a11737581beafef4fe120bcd", "compiledModules" : [], "uname" : { "sysname" : "Linux", "release" : "4.9.36-x86_64-linode85", "version" : "#1 SMP Thu Jul 6 15:31:23 UTC 2017", "machine" : "x86_64" }, "somap" : [ { "b" : "562DDD70F000", "elfType" : 3, "buildId" : "7E08C88DF63C9DEE479A2B1C6C7E11D8651F1184" }, { "b" : "7FFC741FA000", "elfType" : 3, "buildId" : "16E7BD2A103689F0C0C45325182912A8213F5118" }, { "b" : "7F977F50F000", "path" : "/lib/x86_64-linux-gnu/libssl.so.1.0.0", "elfType" : 3, "buildId" : "675F454AD6FD0B6CA2E41127C7B98079DA37F7B6" }, { "b" : "7F977F0CB000", "path" : "/lib/x86_64-linux-gnu/libcrypto.so.1.0.0", "elfType" : 3, "buildId" : "2DA08A7E5BF610030DD33B70DB951399626B7496" }, { "b" : "7F977EEC3000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "buildId" : "F951C1E0765FCAE48F82CAFE35D1ADD36D6C9AF9" }, { "b" : "7F977ECBF000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "0FC788F0861846257B5F1773FBD438E95DFC1032" }, { "b" : "7F977E9B6000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "FF7A33D389E756CA381A8189291A968EA5E1F4F8" }, { "b" : "7F977E7A0000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "68220AE2C65D65C1B6AAA12FA6765A6EC2F5F434" }, { "b" : "7F977E583000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "27F189EF8DB8C3734C6A678E6EF3CB0B206D58B2" }, { "b" : "7F977E1B9000", "path" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "088A6E00A1814622219F346B41E775B8DD46C518" }, { "b" : "7F977F778000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3, "buildId" : "9157F205547F0EB588E2AB1F2F120B74253A43EA" } ] }} mongod(_ZN5mongo15printStackTraceERSo+0x41) [0x562ddec7aea1] mongod(+0x156B0B9) [0x562ddec7a0b9] mongod(+0x156B59D) [0x562ddec7a59d] libpthread.so.0(+0x11390) [0x7f977e594390] libc.so.6(gsignal+0x38) [0x7f977e1ee428] libc.so.6(abort+0x16A) [0x7f977e1f002a] mongod(_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj+0x0) [0x562dddf29733] mongod(+0x122AF76) [0x562dde939f76] mongod(_ZNK5mongo17RecordStoreV1Base13getNextRecordEPNS_16OperationContextERKNS_7DiskLocE+0x25) [0x562dde939fa5] mongod(_ZN5mongo27SimpleRecordStoreV1Iterator7advanceEv+0x3D) [0x562dde94e8ad] mongod(_ZN5mongo27SimpleRecordStoreV1Iterator9seekExactERKNS_8RecordIdE+0x87) [0x562dde94eab7] mongod(_ZN5mongo16WorkingSetCommon5fetchEPNS_16OperationContextEPNS_10WorkingSetEmNS_11unowned_ptrINS_20SeekableRecordCursorEEE+0xAB) [0x562dde2ee9bb] mongod(_ZN5mongo10FetchStage6doWorkEPm+0x106) [0x562dde295626] mongod(_ZN5mongo9PlanStage4workEPm+0x63) [0x562dde2b7073] mongod(_ZN5mongo11DeleteStage6doWorkEPm+0x363) [0x562dde291ab3] mongod(_ZN5mongo9PlanStage4workEPm+0x63) [0x562dde2b7073] mongod(_ZN5mongo12PlanExecutor11getNextImplEPNS_11SnapshottedINS_7BSONObjEEEPNS_8RecordIdE+0x19A) [0x562dde5bc56a] mongod(_ZN5mongo12PlanExecutor7getNextEPNS_7BSONObjEPNS_8RecordIdE+0x4B) [0x562dde5bce8b] mongod(_ZN5mongo12PlanExecutor11executePlanEv+0x6D) [0x562dde5bcfbd] mongod(_ZN5mongo10TTLMonitor13doTTLForIndexEPNS_16OperationContextENS_7BSONObjE+0x1987) [0x562dde997427] mongod(_ZN5mongo10TTLMonitor9doTTLPassEv+0x47A) [0x562dde99858a] mongod(_ZN5mongo10TTLMonitor3runEv+0x328) [0x562dde998cc8] mongod(_ZN5mongo13BackgroundJob7jobBodyEv+0x131) [0x562ddebed6c1] mongod(+0x1FE0430) [0x562ddf6ef430] libpthread.so.0(+0x76BA) [0x7f977e58a6ba] libc.so.6(clone+0x6D) [0x7f977e2c03dd] ----- END BACKTRACE -----}}
ramon.fernandez commented on Sun, 20 Aug 2017 21:47:07 +0000: Domon, unfortunately the information provided points to disk corruption, so you may need to restore data from backups or resync this node from a healthy replica. We often ask the questions below to better understand how this could have happened: What kind of underlying storage mechanism are you using? Are the storage devices attached locally or over the network? Are the disks SSDs or HDDs? What kind of RAID and/or volume management system are you using? Would you please check the integrity of your disks? Has the database always been running this version of MongoDB? If not please describe the upgrade/downgrade cycles the database has been through. Have you manipulated (copied or moved) the underlying database files? If so, was mongod running? Have you ever restored this instance from backups? What method do you use to create backups? When was the underlying filesystem last checked and is it currently marked clean? Has this system suffered from unclean shutdowns? These questions represent the most common scenarios that can lead to a behavior like the one you're describing. In any event, I'm afraid there's not much that can be done in this particular situation. ramon.fernandez commented on Mon, 14 Aug 2017 12:38:58 +0000: Sorry to hear you run into this issue Domon. If this happens again it will help to upload the full logs of the affected mongod. We're going to take a look at the stack trace to see if it provides any indication of a bug. domon commented on Sun, 13 Aug 2017 11:32:19 +0000: I was frustrated and gave up debugging this. I was lucky that I can rebuild the database so I reset the whole /var/lib/mongo directory and it works now. Please close this issue. Thanks. domon commented on Sat, 12 Aug 2017 11:53:52 +0000: Sorry I didn't finish my sentence before creating the ticket. The service crashes after started. I have no idea how to debug further.
Start the service: sudo systemctl status mongod.service And do nothing but wait. The service crashes after some time (within a minute).
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