I have encountered some problems with JBCache. I have transactional enviroment. changes are commited to cache upon tx commit phase - classes that implement TransactionalAction are executed. Hoever it misses some entries - cache doesnt retain entries it should upon concurrent tx running. Here is what is happening: 1)Tx[1] reads data to cache and stores to local Map 2)Tx[2] reads ...... 3)Tx[1] adds "ALA" 4)Tx[1] adds "BEATA" 5)Tx[2] removes "OLA" - last 3 operations are performed on local copies each tx stores in Map 6)Tx[1] Commits - two new entries are added to Tx - they are present 7)Tx[2] commits - one entry is removed Cache lacks "ALA" and "BEATA". In fact if our caching structure doesnt write all entries - to cache upon commit, those entries are missed too. on steps 1-2 TreeCache.getKeys(nodeName) is called, and for each key value from that node is retrieved, retrieed values are stored in local Map - which is not shared among tx, each has its local map. on steps 3-5 remove(key) and put(key,value) opearations are performed on local Maps - no cache operations are performed. in those steps TransactionAction's are added to SynchronizationHandler lists are added. On 6 tx.commit/TransactionManager.commit is called. actions stored in SynchHandler call TreeCache.put(nodeName,key,object) and remove(nodeName,key) (it could, if something was removed) - putting again and removing undeaded entries - whole copy of map is put into cache again, and some entries are removed On 7 is the same On steps 6-7 if whole local Map is not put into cache it lacks those entries which has not been put again. I mean if only updated, added entries are put in cache, all other are not retained. Is this expected behaviour? I have used jbcache 1.2 or 1.3 and newest version. Isolation level is READ COMMITED, with 1.4 I have tried Optimisitc locking scheme. Any suggestions would be highly welcome. Kind regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995372#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...