"tallpsmith" wrote : | Lets assume a local TreeCache with isolation Level set to Serializable. |
Are you sure you set the isolation level correctly ? Did you do: cache.setIsolationLevel(IsolationLevel.SERIALIZABLE); or set it via XML ? Look at the code below, works exactly as it should: thread2 has to wait for 3secs until it can (read) access the data. | public void testConcurrentReadsWithSerializableIsolationLevel() throws CacheException, InterruptedException { | final long TIMEOUT=5000; | cache.setIsolationLevel(IsolationLevel.SERIALIZABLE); | cache.put("/testfqn", "testkey", "testvalue"); // add initial value, to be read by threads | Reader r1, r2; | r1=new Reader("reader1", 3000); | r2=new Reader("reader2", 0); | r1.start(); | pause(100); // make sure thread1 starts and acquires the lock before thread2 | r2.start(); | r1.join(TIMEOUT); | r2.join(TIMEOUT); | } | | class Reader extends Thread { | long timeout; | | public Reader(String name, long timeout) { | super(name); | this.timeout=timeout; | } | | public void run() { | UserTransaction trans=null; | try { | trans=(UserTransaction)new InitialContext(p).lookup("UserTransaction"); | trans.begin(); | Object retval=null; | log2("accessing tree"); | retval=cache.get("testfqn", "testkey"); | log2("retval: " + retval); | if(timeout > 0) { | log2("sleeping for " + timeout + " ms"); | pause(timeout); | } | } | catch(Exception e) { | e.printStackTrace(); | } | finally { | try {trans.commit();} catch(Throwable t) {} | log2("done"); | } | } | } | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3854774#3854774 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3854774 ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click _______________________________________________ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development