def run(self): errors = 0 while self.is_running: # If we fail in an Idl call, we could have missed an update # from the server, leaving us out of sync with ovsdb-server. # It is not safe to continue without restarting the connection. # Though it is likely that the error is unrecoverable, keep trying # indefinitely just in case. try: self.idl.wait(self.poller) self.poller.fd_wait(self.txns.alert_fileno, poller.POLLIN) self.poller.block() with self.lock: self.idl.run() except Exception as e: # This shouldn't happen, but is possible if there is a bug # in python-ovs errors += 1 LOG.exception(e) with self.lock: self.idl.force_reconnect() try: idlutils.wait_for_change(self.idl, self.timeout) except Exception as e: # This could throw the same exception as idl.run() # or Exception("timeout"), either way continue LOG.exception(e) sleep = min(2**errors, 60) LOG.info("Trying to recover, sleeping %s seconds", sleep) time.sleep(sleep) continue errors = 0 txn = self.txns.get_nowait() if txn is not None: try: with self.lock: txn.results.put(txn.do_commit()) except Exception as ex: er = idlutils.ExceptionResult(ex=ex, tb=traceback.format_exc()) txn.results.put(er) self.txns.task_done() self.idl.close()
def run(self): while self._is_running: self.idl.wait(self.poller) self.poller.fd_wait(self.txns.alert_fileno, poller.POLLIN) # TODO(jlibosva): Remove next line once losing connection to ovsdb # is solved. self.poller.timer_wait(self.timeout * 1000) self.poller.block() self.idl.run() txn = self.txns.get_nowait() if txn is not None: try: #记录成功执行的commands txn.results.put(txn.do_commit()) except Exception as ex: er = idlutils.ExceptionResult(ex=ex, tb=traceback.format_exc()) txn.results.put(er) self.txns.task_done()
def run(self): errors = 0 while self._is_running: # If we fail in an Idl call, we could have missed an update # from the server, leaving us out of sync with ovsdb-server. # It is not safe to continue without restarting the connection, # though it is likely that the error is unrecoverable, so only try # a few times before bailing completely. try: self.idl.wait(self.poller) self.poller.fd_wait(self.txns.alert_fileno, poller.POLLIN) # TODO(jlibosva): Remove next line once losing connection to # ovsdb is solved. self.poller.timer_wait(self.timeout * 1000) self.poller.block() self.idl.run() except Exception as e: # This shouldn't happen, but is possible if there is a bug # in python-ovs errors += 1 LOG.exception(e) if errors <= 3: self.idl.force_reconnect() idlutils.wait_for_change(self.idl, self.timeout) continue self._is_running = False break errors = 0 txn = self.txns.get_nowait() if txn is not None: try: txn.results.put(txn.do_commit()) except Exception as ex: er = idlutils.ExceptionResult(ex=ex, tb=traceback.format_exc()) txn.results.put(er) self.txns.task_done()