[SERVER-27903] Out of memory (mogodb) with WiredTiger Created: 03/Feb/17 Updated: 21/Feb/17 Resolved: 21/Feb/17 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | WiredTiger |
| Affects Version/s: | 3.2.0 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | kangwanu | Assignee: | Mark Agarunov |
| Resolution: | Done | Votes: | 2 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
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| Operating System: | ALL | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Steps To Reproduce: |
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| Participants: |
| Description |
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hello |
| Comments |
| Comment by kangwanu [ 21/Feb/17 ] | ||||||
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Hello Mark , thanks so much sir. | ||||||
| Comment by Mark Agarunov [ 07/Feb/17 ] | ||||||
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Hello kangwanu, The recommended version of MongoDB would be the latest, which at this point in time is version 3.4.2. Please note that once you upgrade to MongoDB 3.4.2, you will only be able to downgrade to 3.2.8 or later. Thanks, | ||||||
| Comment by kangwanu [ 07/Feb/17 ] | ||||||
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Hello Mark, Thanks, | ||||||
| Comment by Mark Agarunov [ 06/Feb/17 ] | ||||||
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Hello kangwanu, Looking over the diagnostic data, There appears to be an operation starting just as the cache size starts to quickly increase. In the attached screenshot, this starts at points B and C.
To better determine the cause of this issue, please upload the full mongod logs. Please note that the version on mongod being used is quite outdated, and there have been a number of critical bug fixes since its release. Additionally, we have spent significant effort improving WiredTiger performance. These fixes and improvements may correct this issue in more recent versions. Would you please upgrade to 3.2.12, the latest version point release, and let us know if the issue is resolved? Thanks, | ||||||
| Comment by kangwanu [ 04/Feb/17 ] | ||||||
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Hi Thomas , Feb 4 12:43:29 kernel: Out of memory: Kill process 22421 (mongod) score 958 or sacrifice child Thank you, | ||||||
| Comment by Kelsey Schubert [ 04/Feb/17 ] | ||||||
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Hi kangwanu, Please note that the diagnostic.data directory does not contain any user data. It periodically collects the output of the following commands, which you are welcome to execute yourself to examine the output.
Additionally, you can examine the source code to confirm. However, since you have expressed some concern, I've gone ahead and created a secure upload portal for you to upload the logs and diagnostic.data. Files uploaded to this portal are only visible to MongoDB employees and are routinely deleted after some time. Thank you, | ||||||
| Comment by kangwanu [ 04/Feb/17 ] | ||||||
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Hi Thomas , thanks, | ||||||
| Comment by Kelsey Schubert [ 03/Feb/17 ] | ||||||
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Hi kangwanu, Thank you for reporting this issue. So we can continue to investigate, would you please upload an archive of the diagnostic.data directory and the complete logs for the affected mongod? Thanks, |