[SERVER-36828] poweroutage resulted in corrupt wiredtiger database files Created: 23/Aug/18  Updated: 15/Sep/18  Resolved: 24/Aug/18

Status: Closed
Project: Core Server
Component/s: WiredTiger
Affects Version/s: 3.6.5
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Michael Adamcik Assignee: Nick Brewer
Resolution: Done Votes: 0
Labels: envm, rpo, rps, trcf, wtc
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: File repair-attempt-1.tar.gz     File repair-attempt-2.tar.gz     File repair-attempt-3.tar.gz     File repair-attempt-4.tar.gz     File shard1.tar.gz     File shard2.tar.gz     File shard3.tar.gz     File shard4.tar.gz    
Issue Links:
Related
Operating System: Linux
Participants:

 Description   

Hello! Im using mongodb 3.6.5 on debian64 in kvm virtual machines (5 shards).

after a poweroutage today my database files from four shards are corrupt and the mongod instances produce two different errors. 

i allready tried "-repair" and the wt-commandline-utility with no success.

please help me, repairing my wiredtiger.wt 's

kind regards,

michael



 Comments   
Comment by Nick Brewer [ 24/Aug/18 ]

nelson.kingsley@gmx.at Glad to hear it worked. Some considerations to prevent this type of issue moving forward:

-Nick

Comment by Michael Adamcik [ 24/Aug/18 ]

Hello Nick Brewer! Your repair attemts worked for 2 shards.. the other 2 had also filesystem damages and i lost some data... anyway... with your files i was able to recover the most important data with the wt command line utility.

thank you very much,

michael

Comment by Nick Brewer [ 24/Aug/18 ]

nelson.kingsley@gmx.at I've uploaded the files after a repair attempt. Could you please substitute them for the ones currently within your dbpath, and let us know if this resolves the issue for you?

Thanks,
-Nick

repair-attempt-1.tar.gz repair-attempt-2.tar.gz repair-attempt-3.tar.gz repair-attempt-4.tar.gz

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