[SERVER-30942] WiredTiger error (0) [1504527896:382615][91756:0x7f6ef4ecfd40], file:WiredTiger.wt, connection: read checksum error for 4096B block at offset 53248: block header checksum of 3729987182 doesn't match expected checksum of 2115544974 Created: 04/Sep/17 Updated: 27/Jul/18 Resolved: 14/Sep/17 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | WiredTiger |
| Affects Version/s: | 3.4.3 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | yanglibo | Assignee: | Kelsey Schubert |
| Resolution: | Done | Votes: | 0 |
| Labels: | envns, rpns, rpo, wtc | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
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| Operating System: | ALL |
| Steps To Reproduce: | 2017-09-04T20:24:56.326+0800 I CONTROL [initandlisten] options: { repair: true, storage: { dbPath: "/share/MongoData/", engine: "wiredTiger" } } ***aborting after fassert() failure |
| Participants: |
| Description |
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My sever lost power when I was backuping mongodb files,then I can't start mongo services,and I use the --repair order to repair it, this error message show.my mongodb version is v3.4.3 64bit, and I tried to replace the 'WiredTiger.turtle' and ‘WiredTiger.wt’ which you give in other similar issue like https://jira.mongodb.org/browse/SERVER-18448, it didn't work.Can you help me fix this problem? |
| Comments |
| Comment by Kelsey Schubert [ 14/Sep/17 ] |
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Hi libo, Thank you for providing the files and answering my questions. I've attached a repair attempt of the files you've provided. Please extract these files and replace them in you $dbpath. From your answers, this issue is likely external to MongoDB. During power failure, NAS may corrupt files that are in the process of being written. Since WiredTiger.wt is most frequently written to of any MongoDB file, it is the most likely to suffer from this type of issue. 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-user 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, |
| Comment by yanglibo [ 05/Sep/17 ] |
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To answer your question, Don't know whether it is usefull. 4.we didn't lose any other files after the power off, so I think the the integrity of your disks is fine? and I found there is a lot of similar issues were posted , could you please give some suggestions in the configuration of mongo to avoid this kind of problen Thank you, |
| Comment by Kelsey Schubert [ 05/Sep/17 ] |
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Hi libo, For us to attempt a repair the of the WiredTiger.wt file, we would need the original WiredTiger.wt and WiredTiger.turtle files. Would you please upload them? Additionally, I have few questions about your storage layer:
Thank you, |