Trouble of session in cluster

[charity]

Hi, I used cluseter in Web Layer.
In my application, I invalidate the session somewhere and re-create a session. Of course, I put the user information into the session.
While in single server, it works good. But after I build a cluster of web layer, the new created session is lost. Client is asked to re-login.

Why?

Thanks a lot.

[akirdat]

Have you turned on the option sticky_session=1 in your workers.properties file?