Michal Glowacki [http://community.jboss.org/people/mglowacki] created the discussion "Why this question never been answered? lock acquisition" To view the discussion, visit: http://community.jboss.org/message/564754#564754 -------------------------------------------------------------- hi,    I am browsing the web for solution of (what can I see) common jboss cache 3.x problem of: org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn [/PageCache/pop_up_76684] after [15000] milliseconds for requestor [Thread[ajp-0.0.0.0-8009-178,5,jboss]]! Lock held by [GlobalTransaction:<null>:32070] +org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn [/PageCache/pop_up_76684] after [15000] milliseconds for requestor [Thread[ajp-0.0.0.0-8009-178,5,jboss]]! Lock held by [GlobalTransaction:<null>:32070]+   I have seen some questions on the discussion boards, but noone is replied.   MVCC model description state that read operations does not acquire locks - looks like something else to me. Perhaps it's a problem of eviction config? I did not define any (is there default one?) and number of nodes is around 20k, attributes like 45k. Possible that look up takes more than lock acquisition timeout? Regards, Michal -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/564754#564754] Start a new discussion in JBoss Cache at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]