Yang Wang created FLINK-18035: --------------------------------- Summary: Executors#newCachedThreadPool could not work as expected Key: FLINK-18035 URL: https://issues.apache.org/jira/browse/FLINK-18035 Project: Flink Issue Type: Bug Components: Runtime / Coordination Affects Versions: 1.11.0 Reporter: Yang Wang Fix For: 1.11.0
In FLINK-17558, we introduce {{Executors#newCachedThreadPool}} to create dedicated thread pool for TaskManager io. However, it could not work as expected. The root cause is about the following constructor of {{ThreadPoolExecutor}}. Only when the workQueue is full, new thread will be started then. So if we set a {{LinkedBlockingQueue}} with {{Integer.MAX_VALUE}} capacity, only one thread will be started. -- This message was sent by Atlassian Jira (v8.3.4#803005)