[SERVER-26998] Unhandled exception 0xC0000006 while performing recovery Created: 11/Nov/16  Updated: 15/Nov/16  Resolved: 14/Nov/16

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: 3.2.10
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Jan S. Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: Text File errorlog.txt    
Operating System: ALL
Steps To Reproduce:

Unknown

Participants:

 Description   

The database was shut down cleanly, however it seems like something went wrong during shutdown because when mongod is now started it start a recover - which fails with an
unhandled exception 0xC0000006 at 0x000000013F598979,

Last stack trace entry is ...\src\mongo\db\storage\mmap_v1\dur_journal.cpp(148) mongo::dur::JSectFooter::checkHash+0x29



 Comments   
Comment by Jan S. [ 15/Nov/16 ]

Hi Thomas,

thanks for the feedback. You are right, one of the files in the journal directory was totally unreadable.
From the error message/exception of mongo I wasn't aware that this is an I/O error. May be it would be worth to adding an error message that allows to deduce that it is an I/O error on file xyz.

Comment by Kelsey Schubert [ 14/Nov/16 ]

Hi mango,

Thanks for your report. The error message in the log indicates that there was an I/O failure. I would recommend examining the system logs and investigating the integrity of your storage layer. Unfortunately, in this case there isn't anything MongoDB can gracefully catch this exception.

Please note that SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For MongoDB-related support discussion please post on the mongodb-users group or Stack Overflow with the mongodb tag. A question like this involving more discussion would be best posted on the mongodb-users group.

Kind regards,
Thomas

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