Probably some network cost should also be counted in. There's no such configuration for tuning. If you find some performance issue, you can create a JIRA or even a patch to fix Livy.
Harsch, Tim <[email protected]> 于2018年8月1日周三 上午8:04写道： > > I have a Livy application that I'm trying to tune as I'm seeing some > performance issue when the queries are fast queries. I've wrapped my > queries with a timer that logs the time taken. The spark code > executed typically takes 50ms to 150ms. I'm querying Livy every 500ms > looking for my response, and generally it doesn't succeed until the third > check. It seems Livy itself is spending up to an extra 1000ms. Where is > Livy spending this time? Are there any tuning parameters I can adjust? > > > Also, I am having difficulty changing any of the settings in > livy-client.conf. I placed the file in /etc/hadoop/conf and livy/conf > folder but my settings seem to get ignored. > > > Thanks > > Tim >
