Kihwal Lee created HDFS-7603: -------------------------------- Summary: The background replication queue initialization may not let other run Key: HDFS-7603 URL: https://issues.apache.org/jira/browse/HDFS-7603 Project: Hadoop HDFS Issue Type: Bug Components: rolling upgrades Reporter: Kihwal Lee Priority: Critical
The background replication queue initialization processes configured number of blocks at a time and releases the namesystem write lock. This was to let namenode start serving right after a standby to active transition or leaving safe mode. However, this does not allow others to run much if the lock fairness is set to "unfair" for the higher throughput. I propose adding a delay between unlocking and locking in the async repl queue init thread. -- This message was sent by Atlassian JIRA (v6.3.4#6332)