[BEAM-2256] mongodb sdk MongoDbIO.BoundedMongoDbSource.splitKeysToFilters incorrect

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Affects Version/s: Not applicable, 0.4.0, 0.5.0, 0.6.0
• Fix Version/s: 2.0.0
• Component/s: io-java-mongodb
• Labels: easyfix
• Flags: Important
• Assignee: Jean-Baptiste Onofré
• Reporter: wang hongmin
• Created: 11/May/17 07:53
• Updated: 16/May/20 13:55
• Resolved: 11/May/17 22:15

Description

When use beam-sdks-java-io-mongodb to count a large collection in MongoDB, I always get a smaller number than actual size of the collection. It seems a puzzle, until I dived into source code and trace the execution. The fault exists in method MongoDbIO.BoundedMongoDbSource.splitKeysToFilters(), which should return one more FILTER than size of input argument splitKeys.
I check all version of this file, it seems none was correct.
Additionally, it seems no suitable [Component]. I choose a similar tag.

Issue Links

• links to: GitHub Pull Request #3093
• links to: GitHub Pull Request #3100