Daniel Ma created HDFS-16869: -------------------------------- Summary: DelegationTokenRenewer timeout feature may cause high utilization of CPU and object leak Key: HDFS-16869 URL: https://issues.apache.org/jira/browse/HDFS-16869 Project: Hadoop HDFS Issue Type: Improvement Affects Versions: 3.3.4, 3.3.3, 3.3.2, 3.3.1 Reporter: Daniel Ma Assignee: Daniel Ma
DelegationTokenRenewer timeout feature may cause high utilization of CPU and object leak。 1-If yarn cluster is in idle state, that is almost no token renewer event triggered, the DelegationTokenRenewerPoolTracker thread will do nothing but dead loop, it will cause high CPU utilization. 2-The renewer event is hold in a map named futures, will has no remove logic , that is the map will become increasingly great with time going by. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org