private void suspendWaiterJob() { if (this.waiterJobId.isSome()) { try { final Job waiter = serviceRegistry.getJob(waiterJobId.get()); waiter.setStatus(Job.Status.WAITING); List<Long> blockedForJobs = new LinkedList<Long>(); for (Job j : jobs) { try { if (setBlockerJob(j, waiter)) { blockedForJobs.add(j.getId()); } } catch (OptimisticLockException e) { // Try again, this happens if the job finishes before we get here // If the same exception happens again then we're in a very weird state if (setBlockerJob(j, waiter)) { blockedForJobs.add(j.getId()); } } } waiter.setBlockedJobIds(blockedForJobs); this.serviceRegistry.updateJob(waiter); } catch (ServiceRegistryException e) { logger.warn("Unable to put {} into a waiting state, this may cause a deadlock: {}", waiterJobId, e.getMessage()); } catch (NotFoundException e) { logger.warn("Unable to put {} into a waiting state, job not found by the service registry. This may cause a deadlock: {}", waiterJobId, e.getMessage()); } } else { logger.debug("No waiting job set, unable to put waiting job into waiting state"); } }
private void wakeWaiterJob() { if (this.waiterJobId.isSome()) { try { final Job waiter = serviceRegistry.getJob(waiterJobId.get()); waiter.setStatus(Job.Status.RUNNING); for (Job j : jobs) { Job updatedJob = this.serviceRegistry.getJob(j.getId()); updatedJob.removeBlockingJobId(); // FYI not updating local j in jobs collection this.serviceRegistry.updateJob(updatedJob); } waiter.removeBlockedJobsIds(); this.serviceRegistry.updateJob(waiter); } catch (ServiceRegistryException e) { logger.warn("Unable to put {} into a waiting state, this may cause a deadlock: {}", waiterJobId, e.getMessage()); } catch (NotFoundException e) { logger.warn("Unable to put {} into a waiting state, job not found by the service registry. This may cause a deadlock: {}", waiterJobId, e.getMessage()); } } else { logger.debug("No waiting job set, unable to put waiting job into waiting state"); } }