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POEJB Timer long running method and Weblogic 10.3.4 issues
 

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    <p>I have a EJB Timer 3.0, and this timer has a method that approximately runs for 6 hours per call. The Timer I have implemented is below: </p> <pre><code>@Stateless @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) public class BatchJobConsumerTimer implements BatchJobConsumerTimerLocal { @Resource TimerService timerService; @EJB ModelOperationsLocal modelOperations; private static final long ONE_DAY_IN_MILLISECONDS = 86400000L; private static final Logger LOG = Logger .getLogger(BatchJobConsumerTimer.class); public BatchJobConsumerTimer() { } @Timeout public void timeout(Timer timer) { LOG.info("Entering timeout method."); if(TimerRunningChecker.isWorking()){ LOG.warn("A TIMER ALREADY IS RUNNING, SECOND TIMER WANTS TO ENTER TIMEOUT METHOD"); return; } else { TimerRunningChecker.setWorking(true); } TimerConfiguration timerConfiguration = (TimerConfiguration) timer .getInfo(); if (timerConfiguration != null) { Calendar calendar = new GregorianCalendar(); if (isWorkDay(timerConfiguration.getSelectedDays())) { Date startTime = new Date(System.currentTimeMillis()); Boolean and = timerConfiguration.getAnd(); Integer numberOfJobs = timerConfiguration.getNumberOfJobs(); int jobConsumed = 0; INFINITE: while (true) { List&lt;Job&gt; findWaitingJobs = modelOperations .getLatestUploadedWaitingBatchJobs((numberOfJobs == -1 || numberOfJobs &gt; 100) ? 100 : numberOfJobs); if (findWaitingJobs != null) { if(findWaitingJobs.size() == 0){ LOG.warn("There is no jobs to consume."); break INFINITE; } for (Job job : findWaitingJobs) { ++jobConsumed;// means successful and unsuccessful LOG.info("Job Number: " + (jobConsumed)); if (and) { if (numberOfJobs != -1) { if (jobConsumed &gt; numberOfJobs &amp;&amp; isEqualsAfterEndSchedule( calendar, timerConfiguration)) { LOG.info("jobConsumed &gt; numberOfJobs &amp;&amp; isEqualsAfterEndSchedule(calendar) is true"); break INFINITE; } } else { if (isEqualsAfterEndSchedule(calendar, timerConfiguration)) { LOG.info("numberOfJobs = infinite &amp;&amp; isEqualsAfterEndSchedule(calendar) is true"); break INFINITE; } } } else { if (numberOfJobs != -1) { if (jobConsumed &gt; numberOfJobs || isEqualsAfterEndSchedule( calendar, timerConfiguration)) { LOG.info("jobConsumed &gt; numberOfJobs || isEqualsAfterEndSchedule(calendar) is true"); break INFINITE; } } else { if (isEqualsAfterEndSchedule(calendar, timerConfiguration)) { LOG.info("numberOfJobs = infinite || isEqualsAfterEndSchedule(calendar) is true"); break INFINITE; } } } try { LOG.info(job.getServiceNumber() + " hizmet numarali is tuketilicek."); modelOperations.update(job); } catch (Exception e) { LOG.error(e, e); } } } else { // liste bos don method'dan break INFINITE; } } //send email Date endTime = new Date(System.currentTimeMillis()); try { modelOperations.sendBatchOperationMail(startTime, endTime); } catch (Exception e) { LOG.error(e, e); } } else { LOG.warn("Today is not the working day."); } } else { LOG.warn("TimerConfiguration is not set."); } if(!TimerRunningChecker.isWorking()){ LOG.warn("A TIMER WANTS CHANGE THE STATE OF WORKING TO NOT WORKING STATE, BUT IT IS ALREADY SET NOT WORKING STATE"); return; } else { TimerRunningChecker.setWorking(false); } LOG.info("Exiting timout method."); } @Override public void createTimer(TimerConfiguration timerConfiguration) throws Exception { // stop the other timers. Collection&lt;Timer&gt; timers = timerService.getTimers(); for (Timer timer : timers) { timer.cancel(); } timerService.createTimer( getRemainingTimeToFirstExpiration(timerConfiguration), ONE_DAY_IN_MILLISECONDS, timerConfiguration); } private long getRemainingTimeToFirstExpiration( TimerConfiguration timerConfiguration) { Calendar now = new GregorianCalendar(); Calendar nextStart = new GregorianCalendar(); nextStart.set(Calendar.HOUR_OF_DAY, timerConfiguration.getBeginHour()); nextStart.set(Calendar.MINUTE, timerConfiguration.getBeginMinute()); nextStart.set(Calendar.SECOND, timerConfiguration.getBeginSecond()); long diff = nextStart.getTimeInMillis() - now.getTimeInMillis(); return (diff &lt; 0 ? diff + ONE_DAY_IN_MILLISECONDS : diff); } private boolean isEqualsAfterEndSchedule(Calendar calendar, TimerConfiguration timerConfiguration) { calendar.setTimeInMillis(System.currentTimeMillis()); int currentHour = calendar.get(Calendar.HOUR_OF_DAY); int currentMinute = calendar.get(Calendar.MINUTE); int currentSecond = calendar.get(Calendar.SECOND); if (currentHour &gt; timerConfiguration.getEndHour()) { return true; } else if (currentHour == timerConfiguration.getEndHour()) { if (currentMinute &gt; timerConfiguration.getEndMinute()) { return true; } else if (currentMinute == timerConfiguration.getEndMinute()) { if (currentSecond &gt;= timerConfiguration.getEndSecond()) { return true; } else { return false; } } else { return false; } } else { return false; } } private boolean isWorkDay(String selectedDays) { if(selectedDays == null){ LOG.error("selectedDays is NULL!"); return false; } LOG.info("selectedDays: " + selectedDays); if (selectedDays.equals("?")) { return false; } if (selectedDays.equals("*")) { return true; } Calendar now = GregorianCalendar.getInstance(); int i = now.get(Calendar.DAY_OF_WEEK); LOG.info("now.get(Calendar.DAY_OF_WEEK): " + i); if (selectedDays.contains("" + i)) { return true; } else { return false; } } } </code></pre> <p>The application server, to which I have to deploy this app is Weblogic 10.3.4, and transaction timeout configuration has been adjusted to 30 seconds. </p> <p>In the lights of the things that I mentioned above, the timeout method automatically rollbacks after 30 seconds passed from the start of execution and the weblogic retries it continuously. I have tried to remove this transaction by annotating the class, method but no success. How can I make this method transactionless? Thank for your interest. </p> <p>By the way, is balusC's recommendation for the <a href="https://stackoverflow.com/questions/7499534">question</a> considerable to getting over from this problem?</p>
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