[SERVER-16977] Memory increase trend when running hammar.mongo with WT Created: 21/Jan/15 Updated: 01/Aug/15 Resolved: 30/Jul/15 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Storage, WiredTiger |
| Affects Version/s: | 2.8.0-rc5 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Critical - P2 |
| Reporter: | Eitan Klein | Assignee: | Eitan Klein |
| Resolution: | Incomplete | Votes: | 1 |
| Labels: | 28qa, wttt | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
Topology: 3 replica set Command line below: |
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| Backwards Compatibility: | Fully Compatible | ||||||||||||||||||||||||
| Operating System: | ALL | ||||||||||||||||||||||||
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| Description |
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Running on pre RC6 build from (1/20/2015) We investigated the followings: 1) We used a private build w/ separated heap for WT, On this investigation VMMAP indicates that majority of memory increase happen inside of WT code. Next steps: 1) Reduce the amount of load and verify if the memory/resources stabilize (means that evict process is able to keep up 4 threads instead of 90 threads) |
| Comments |
| Comment by David Daly [ 27/Apr/15 ] |
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Linking possibly related memory growth tickets. |
| Comment by Eitan Klein [ 17/Apr/15 ] |
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keith.bostic Thanks for the update, I will re-run and see if I can spot more data w/ most recent builds. I will update this tickets with more data,. |
| Comment by Eitan Klein [ 09/Mar/15 ] |
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See default graph (cache size configured to 1GB memory grew above 2.5 GB). The second bitmap cache overhead = 30, memory capped to a level above the cache size but it appear below it used to be (at least it demonstrate bound by upper limit) |
| Comment by Eitan Klein [ 08/Feb/15 ] |
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Issue has not been resolved , fresh results from RC8 https://docs.google.com/a/10gen.com/document/d/15NP6DcQPuE3-yTvSKqcsvU77FTndCKCZ6kZmMZKClBI/edit |
| Comment by Eitan Klein [ 01/Feb/15 ] |
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Summary |
| Comment by Eitan Klein [ 21/Jan/15 ] |
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Summary meeting Keith / Eitan |