Weijie Guo created FLINK-31763: ---------------------------------- Summary: Ensure that the total number of requested buffers does not exceed poolSize + maxOverdraftBuffersPerGate Key: FLINK-31763 URL: https://issues.apache.org/jira/browse/FLINK-31763 Project: Flink Issue Type: Bug Components: Runtime / Network Affects Versions: 1.17.1 Reporter: Weijie Guo Assignee: Weijie Guo
As we discussed in FLINK-31610, new buffers can be requested when "{_}numOfRequestedMemorySegments + numberOfRequestedOverdraftMemorySegments < poolSize + maxOverdraftBuffersPerGate"{_}. Consider such a scenario, the {{{}CurrentPoolSize = 5{}}}, {{{}numOfRequestedMemorySegments = 7{}}}, {{{}maxOverdraftBuffersPerGate = 2{}}}. If {{{}numberOfRequestedOverdraftMemorySegments = 0{}}}, then 2 buffers can be requested now. We should convert {{numberOfRequestedMemorySegments}} to {{numberOfRequestedOverdraftMemorySegments}} when poolSize is decreased. -- This message was sent by Atlassian Jira (v8.20.10#820010)