Repository navigation
【3.8】 Parallel scan may silently drop a batch #665
Description
Description
In nebula-java 3.8.4, parallel vertex/edge scans may intermittently lose a batch of data. In both ScanVertexResultIterator and ScanEdgeResultIterator, the partInfo == null branch counts down the latch before incrementing existSuccess. The main thread may resume too early and discard valid results when partSuccess=false.
Expected
Update the success counter before releasing the latch.
Fix
Swap existSuccess.addAndGet(1) and countDownLatch.countDown() in both iterators.
Activity
[-][Bug] Parallel scan may silently drop a batch (nebula-java 3.8.4)[/-][+][3.8.4] Parallel scan may silently drop a batch [/+][-][3.8.4] Parallel scan may silently drop a batch [/-][+]【3.8】 Parallel scan may silently drop a batch [/+]