Sunil G created YARN-1398: ----------------------------- Summary: Deadlock in capacity scheduler leaf queue and parent queue for getQueueInfo and completedConatiner call Key: YARN-1398 URL: https://issues.apache.org/jira/browse/YARN-1398 Project: Hadoop YARN Issue Type: Bug Components: resourcemanager Affects Versions: 2.2.0 Reporter: Sunil G Priority: Critical
getQueueInfo in parentQueue will call child.getQueueInfo(). This will try acquire the leaf queue lock over parent queue lock. Now at same time if a completedContainer call comes and acquired LeafQueue lock and it will wait for ParentQueue's completedConatiner call. This lock usage is not in synchronous and can lead to deadlock. With JCarder, this is showing as a potential deadlock scenario. -- This message was sent by Atlassian JIRA (v6.1#6144)