Created
December 5, 2014 17:22
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| def control_migration(self): | |
| self.qmp.connect() | |
| counter_check_comp_size = 0 | |
| ret = self.qmp.qmp_negotiate() | |
| if not ret: | |
| raise CloudletGenerationError("failed to connect to qmp channel") | |
| sleep(5) | |
| if VMOverlayCreationMode.LIVE_MIGRATION_STOP == VMOverlayCreationMode.LIVE_MIGRATION_FINISH_ASAP: | |
| self.migration_stop_time = self._stop_migration() | |
| elif VMOverlayCreationMode.LIVE_MIGRATION_STOP == VMOverlayCreationMode.LIVE_MIGRATION_FINISH_USE_SMAPSHOT_SIZE: | |
| iteration_issue_time_list = list() | |
| sleep_between_iteration = 2 | |
| while(not self.stop.wait(0.1)): | |
| unprocessed_memory_snapshot_size = self.memory_snapshot_queue.qsize() *\ | |
| VMOverlayCreationMode.PIPE_ONE_ELEMENT_SIZE | |
| #LOG.debug("[live] %d" % unprocessed_memory_snapshot_size) | |
| if unprocessed_memory_snapshot_size < 1024*1024*10: # 10 MB | |
| LOG.debug("[live][qmp] iterate_raw_live") | |
| ret = self.qmp.iterate_raw_live() | |
| iteration_issue_time_list.append(time()) | |
| sleep(sleep_between_iteration) | |
| if len(iteration_issue_time_list) < 2: | |
| continue | |
| latest_time_diff = iteration_issue_time_list[-1] - iteration_issue_time_list[-2] | |
| if latest_time_diff < sleep_between_iteration*1.4: | |
| counter_check_comp_size += 1 | |
| if self.compdata_queue.qsize() == 0: | |
| # stop after transmitting everything | |
| self.migration_stop_time = self._stop_migration() | |
| break | |
| if len(iteration_issue_time_list) > 5: | |
| self.migration_stop_time = self._stop_migration() | |
| break | |
| self.qmp.disconnect() |
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