Readless Increments in SDK have concurrency issues
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Andreas Neumann December 13, 2016 at 3:13 AM
When this gets fixed, the ReadlessIncrementTest integration test should be changed to also run with SDK.
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Bhooshan Mogal
Bhooshan MogalReporter
Andreas Neumann
Andreas NeumannLabels
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MajorCreated September 2, 2016 at 7:33 PM
Updated August 3, 2020 at 4:14 PM
In SDK/Standalone, we use LevelDB to implement Tables. The readless increments for LevelDB are implemented the same way as regular increments, that is, using a read,modify,write. Because there is no locking, that means that concurrent increments can cancel out each other's writes. This is problematic:
with conflict detection turned off, some writes are lost and that is never detected.