shaomeng.wang created FLINK-19852: ------------------------------------- Summary: Managed memory released check can block IterativeTask Key: FLINK-19852 URL: https://issues.apache.org/jira/browse/FLINK-19852 Project: Flink Issue Type: Bug Components: Runtime / Task Affects Versions: 1.11.2, 1.11.1, 1.10.2, 1.11.0 Reporter: shaomeng.wang Attachments: image-2020-10-28-17-48-28-395.png, image-2020-10-28-17-48-48-583.png
UnsafeMemoryBudget#reserveMemory, called on TempBarrier, needs time to wait on GC of all allocated/released managed memory at every iteration. stack: !image-2020-10-28-17-48-48-583.png! new TempBarrier in BatchTask !image-2020-10-28-17-48-28-395.png! These will be very slow than before. -- This message was sent by Atlassian Jira (v8.3.4#803005)