My Jira & Confluence DC nodes are very slow with no user connected, pages can take several seconds to display.
I tried to analyse the disk performance on my linux VMs and was redirected to https://confluence.atlassian.com/kb/testing-disk-access-speed-for-a-java-application-818577561.html by Atlassian support.
The problem is that the shared home directory is a NFS shared disk on each cluster nodes so it can't have the same performance as a local disk.
The results I have are :
stat avg median tmin tmax
open 1,761,813 763,637 470,733 102,386,127
r/w 19,746 16,230 7,317 236,447
close 878,427 426,411 263,622 55,607,967
delete 957,823 457,462 277,536 56,907,399
All times are in nanoseconds.
Are these results ok for Jira/Confluence nodes or do I have really poor NFS disks ?
If I recall we had poor results when analyzing our NFS disk speed. We focused on the local disk speed to make sure we were hitting the numbers in the table at the page link you have in your post. We actually used a VM with similar specs as our app nodes as our NFS for the first year we were on JDC and CDC. Each app had its own dedicated VM for this. We had >1 million issues and over 20k users running 4 app nodes for each app. Focus on tuning Java JVM and database connection settings. How big is your JVM in the <install>/bin/setenv.sh file? How many nodes are you running? CPU's per node? We have moved to Isilon storage but didn't see that big of a difference in performance. What did your local disk results look like?
Hey Community, my name is Jacob and I’m a Product Marketing Manager on the Data Center team. We want to hear from you! We understand that the move to our Data Center products doesn’t happen overnight...
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