Hello,
I have a strange effect at my ACE 4710. I loadbalances normally reliable only 14 WEB-Services.
It's running on SW A3.25. Since several weeks I regognized a dramatical increase of Sticky entries. So when running in limitations (the stolen for reuse counter increased then) (show np 1 me-stats "-slb -v") gave more and more resources for sticky ... last it was at 65% and ran again into limits at round 650500 Sticky entries.
So I began to find out what of the services was affected with most sticky database entries and could Identify it. There were really to see round about
640000 entries for that specific service.
The sticky for that service was defined to look at a specific cookie in the http header and the timeout defined is 120 minutes.
So round about 45000 Entries was to see with a "show sticky databse group Cookie_Sticky" with a time-to-expire value of zero in the database like the follwing examüple shows:
timeout : 120 timeout-activeconns : FALSE
sticky-entry rserver-instance time-to-expire flags
---------------------+--------------------------------+--------------+-------+
13765297814690832647 server1:0 0 -
4799436437302419802 server2:0 0 -
3352922268004415581 server1:0 0 -
17120375021283790771 server2:0 0 -
18319552650970721619 server1:0 0 -
That looked for zombie databse entries....
When I modified my Sticky definition with the command "timeout activeconns" all the Zero-Entries were kicked out and the rsources used for Sticky
went back to 5% of usage....
Has anybody seen such an effect ? What could this caused by ?
Many thanks for help in advance
Gerhard