Todd Lipcon created HADOOP-9420: ----------------------------------- Summary: Add percentile or max metric for rpcQueueTime, processing time Key: HADOOP-9420 URL: https://issues.apache.org/jira/browse/HADOOP-9420 Project: Hadoop Common Issue Type: Bug Components: ipc, metrics Affects Versions: 2.0.3-alpha Reporter: Todd Lipcon
Currently, we only export averages for rpcQueueTime and rpcProcessingTime. These metrics are most useful when looking at timeouts and slow responses, which in my experience are often caused by momentary spikes in load, which won't show up in averages over the 15+ second time intervals often used by metrics systems. We should collect at least the max queuetime and processing time over each interval, or the percentiles if it's not too expensive. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira