[FLINK-9708] Network buffer leaks when buffer request fails during buffer redistribution

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.5.1, 1.6.0
• Component/s: Runtime / Network
• Assignee: Nico Kruber
• Reporter: Nico Kruber
• Created: 03/Jul/18 07:28
• Updated: 04/Jul/18 05:54
• Resolved: 04/Jul/18 05:54

Description

If an exception is thrown in NetworkBufferPool#requestMemorySegments()'s first call to redistributeBuffers(), the accounting for numTotalRequiredBuffers is wrong for future uses of this buffer pool.

Issue Links

• is related to: FLINK-9636 Network buffer leaks in requesting a batch of segments during canceling