[SERVER-6557] when running 2 or more MapReduce in parallel mongo crash Created: 23/Jul/12 Updated: 31/Jul/12 Resolved: 31/Jul/12 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Concurrency, MapReduce |
| Affects Version/s: | 2.2.0-rc0 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Critical - P2 |
| Reporter: | izek greenfield | Assignee: | siddharth.singh@10gen.com |
| Resolution: | Cannot Reproduce | Votes: | 2 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
linux RH 5.5 |
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| Operating System: | Linux |
| Participants: |
| Description |
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Sun Jul 22 13:04:32 [conn5] CMD: drop hoursDatabase.tmp.mr.minuteid_instanceid_90 Sun Jul 22 13:04:32 Invalid access at address: 0xc0 from thread: conn5 Sun Jul 22 13:04:32 Got signal: 11 (Segmentation fault). Sun Jul 22 13:04:32 [conn6] build index done. scanned 0 total records. 0 secs Sun Jul 22 13:04:32 [conn6] CMD: drop minutesDatabase.tmp.mr.secondid_instanceid_status_91 Sun Jul 22 13:04:32 [conn6] build index done. scanned 0 total records. 0 secs Sun Jul 22 13:04:32 Backtrace: |
| Comments |
| Comment by Ian Whalen (Inactive) [ 31/Jul/12 ] |
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@izek, I'm closing this ticket for now, but please reopen with detailed steps to reproduce if you can. |
| Comment by siddharth.singh@10gen.com [ 25/Jul/12 ] |
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Hi, I tried running mapreduce in parallel but could not repro the crash. Can you please post the steps to reproduce this. Thanks. |
| Comment by izek greenfield [ 24/Jul/12 ] |
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sample doc: commands: , , $and: [ { "second_id" : { $lt: new Date(1343109180000) } } ] }, , {count: 1, elapsedTime: this.elapsedTime, status : this.status, failedCount: 1 , sucssesCount: 1}); }", ; values.forEach(function(val) { reduced.elapsedTime += val.elapsedTime; reduced.count += val.count; } ); return reduced; }", ", } on my env it happen each time i start it. it happen when i start with empty collection immediatly if the collection has data it takes more time. |
| Comment by Antoine Girbal [ 24/Jul/12 ] |
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is this reproducible always? |