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Type: Bug
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Resolution: Duplicate
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Priority: Blocker - P1
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None
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Affects Version/s: 3.4.0
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Component/s: Aggregation Framework
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None
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ALL
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v3.4
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Query 2017-01-23
When using $bucketAuto with an $addToSet accumulator within the 'output' document can crash mongod.
An example query that can crash mongod:
db.tweets.aggregate([ { $bucketAuto: { groupBy: "$user.location", buckets: 1, output: { count: { $sum: 1 }, location: { $addToSet: "$user.location" } } } } ])
This query is probably silly/not-useful because I think specifying no 'output' field would return a similar result (this was just me playing around), but I thought the mongod crash was unexpected.
When mongod crashes, the following is logged before a backtrace:
2016-12-13T12:59:10.048+0100 F - [conn2] Invalid operation at address: 0x7f1d43ba990a 2016-12-13T12:59:10.061+0100 F - [conn2] Got signal: 8 (Floating point exception). 0x7f1d443e0f91 0x7f1d443e0089 0x7f1d443e06f6 0x7f1d42153100 0x7f1d43ba990a 0x7f1d43ba91df 0x7f1d43bc8d2e 0x7f1d43bcae3a 0x7f1d43bce255 0x7f1d43ca4492 0x7f1d43a3b0a5 0x7f1d43a3b29c 0x7f1d43a3b893 0x7f1d43d3c31a 0x7f1d43d3cc3b 0x7f1d4398447b 0x7f1d439859a9 0x7f1d438feb2b 0x7f1d438ffd70 0x7f1d43f12afd 0x7f1d43b1c54d 0x7f1d4371082d 0x7f1d4371116d 0x7f1d4435ec22 0x7f1d4214bdc5 0x7f1d41e78ced
- duplicates
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SERVER-25535 Remove injectExpressionContext() methods from pipeline directory
- Closed
- related to
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SERVER-27518 max accumulator with auto-buckets can cause mongod crash
- Closed