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Type:
Bug
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Resolution: Duplicate
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Priority:
Major - P3
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None
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Affects Version/s: 3.6.6, 3.6.7
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Component/s: mongodump
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Labels:None
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Environment:OSX (server and client)
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(copied to CRM)
Inconsistent document count from mongodump when using the --query argument and performing an equality match on an object-based _id field.
Problem appears to be reproducible on a standalone, RS or sharded cluster.
Steps to Reproduce
Data set
db.coll.insertMany([
{ _id: {id: "ABC", version: 1}, text: "a" }
{ _id: {id: "ABC", version: 2}, text: "a" }
{ _id: {id: "ABC", version: 3}, text: "a" }
{ _id: {id: "ABC", version: 4}, text: "a" }
{ _id: {id: "ABC", version: 5}, text: "a" }
{ _id: {id: "ABC", version: 6}, text: "a" }
{ _id: {id: "ABC", version: 7}, text: "a" }
])
mongodump command
> mongodump -d test -c coll --query '{_id: {id: "ABC", version:7 }}'
results
~ 90% of the time 1 document is dumped
~ 10% of the time 0 documents are dumped
- duplicates
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- Closed
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