def stop_management_server(config):
    from infinisqlmgr.management import util

    common.configure_logging(config)
    cluster_name = config.get("management", "cluster_name")

    existing_pid = util.get_pid(config.dist_dir, cluster_name)
    if existing_pid is not None:
        logging.info("Trying to stop the existing process at pid %d", existing_pid)
        try:
            os.kill(existing_pid, signal.SIGTERM)
        except ProcessLookupError:
            logging.debug("the management process is not running")
        else:
            logging.info("Waiting for process %d exit", existing_pid)
            try:
                pid, exit_status = os.waitpid(existing_pid, 0)
            except ChildProcessError:
                # We ignore this because the child process might have already gone away, and we
                # won't be able to get status information about it.
                pass
            else:
                return_code = exit_status >> 8
                logging.debug("management process exited with code %d", return_code)
                if return_code!=0:
                    logging.warning("There was an error while stopping the management process, check the logs for more detail.")

    # Make sure that the pid file is gone, even if it's empty.
    if util.exists(config.dist_dir, cluster_name):
        run_path = util.get_run_path(config.dist_dir, cluster_name)
        logging.debug("deleting run file at: %s", run_path)
        os.unlink(run_path)

    logging.info("Stopped management process for cluster: %s" % cluster_name)
Esempio n. 2
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def stop_management_server(config):
    from infinisqlmgr.management import util

    common.configure_logging(config)
    cluster_name = config.get("management", "cluster_name")

    existing_pid = util.get_pid(config.dist_dir, cluster_name)
    if existing_pid is not None:
        logging.info("Trying to stop the existing process at pid %d",
                     existing_pid)
        try:
            os.kill(existing_pid, signal.SIGTERM)
        except ProcessLookupError:
            logging.debug("the management process is not running")
        else:
            logging.info("Waiting for process %d exit", existing_pid)
            try:
                pid, exit_status = os.waitpid(existing_pid, 0)
            except ChildProcessError:
                # We ignore this because the child process might have already gone away, and we
                # won't be able to get status information about it.
                pass
            else:
                return_code = exit_status >> 8
                logging.debug("management process exited with code %d",
                              return_code)
                if return_code != 0:
                    logging.warning(
                        "There was an error while stopping the management process, check the logs for more detail."
                    )

    # Make sure that the pid file is gone, even if it's empty.
    if util.exists(config.dist_dir, cluster_name):
        run_path = util.get_run_path(config.dist_dir, cluster_name)
        logging.debug("deleting run file at: %s", run_path)
        os.unlink(run_path)

    logging.info("Stopped management process for cluster: %s" % cluster_name)
def start_management_server(config):
    from infinisqlmgr.management import util

    common.configure_logging(config)
    cluster_name = config.get("management", "cluster_name")
    existing_pid = util.get_pid(config.dist_dir, cluster_name)
    if existing_pid is not None:
        logging.error("A management process appears to exist already. You should run the 'manager stop' command first "
                      "to make sure the existing process has stopped.")
        return 1

    logging.debug("forking management server")
    pid = os.fork()

    if pid!=0:
        util.write_pid(config.dist_dir, cluster_name, pid)
        logging.info("Parent start_management_server() finished")
        return 0

    logging.debug("creating management process")
    management_server = management.Controller(config)
    logging.debug("starting management process")
    return management_server.run()
Esempio n. 4
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def start_management_server(config):
    from infinisqlmgr.management import util

    common.configure_logging(config)
    cluster_name = config.get("management", "cluster_name")
    existing_pid = util.get_pid(config.dist_dir, cluster_name)
    if existing_pid is not None:
        logging.error(
            "A management process appears to exist already. You should run the 'manager stop' command first "
            "to make sure the existing process has stopped.")
        return 1

    logging.debug("forking management server")
    pid = os.fork()

    if pid != 0:
        util.write_pid(config.dist_dir, cluster_name, pid)
        logging.info("Parent start_management_server() finished")
        return 0

    logging.debug("creating management process")
    management_server = management.Controller(config)
    logging.debug("starting management process")
    return management_server.run()