John Zhuge created HDFS-10822: --------------------------------- Summary: Log DataNodes in the write pipeline Key: HDFS-10822 URL: https://issues.apache.org/jira/browse/HDFS-10822 Project: Hadoop HDFS Issue Type: Improvement Components: hdfs-client Affects Versions: 2.6.0 Reporter: John Zhuge Assignee: John Zhuge Priority: Trivial
Trying to diagnose a slow HDFS flush, taking longer than 10 seconds, but did not know which DNs were involved in the write pipeline. Of course, I could search NN log for the list of DNs, but it might not be possible sometimes or convenient. Propose to add a DEBUG trace to DataStreamer#setPipeline to print the list of DNs in the pipeline. BTW, we do print the list of DNs during pipeline recovery. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org