we have a JIRA 6.4.1 with Simple Calendar addon in Version 1.7.5.
When displaying the simple calender, is lasts 7-11 seconds until the calendar content is displayed.
It shows the same behaviour when clicking "Month", "Week" or "Day"-View.
We have checked the network connection, which is fast, the CPU load is not raising when loading.
With IE9 or Firefox same behaviour, so the client side seems not to be the problem.
Our database is an Oracle 11G. The rest of JIRA performs well.
How can we speed up the calendar?
Thank you in advance for any ideas.
When looking into the calendar, we see a huge number (aprox. 9000) times this SQL-Statement, with different issue numbers in the SQL log:
/rest/mailrucalws/1.0/mailcalsrv/events 0ms "SELECT ID, ISSUE, CUSTOMFIELD, PARENTKEY, STRINGVALUE, NUMBERVALUE, TEXTVALUE, DATEVALUE, VALUETYPE FROM PUBLIC.customfieldvalue WHERE ISSUE='31954'"
This seems to slow down the calendar a lot.
Maybe this is a hint?
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