Example usage for org.apache.hadoop.util SignalLogger INSTANCE

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In this page you can find the example usage for org.apache.hadoop.util SignalLogger INSTANCE.

Prototype

SignalLogger INSTANCE

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Usage

From source file:kr.co.bitnine.octopus.util.StringUtils.java

License:Apache License

/**
 * Print a log message for starting up and shutting down
 *
 * @param clazz the class of the server/*from   w  w w . j  av a2 s.c om*/
 * @param args  arguments
 * @param log   the target log object
 */
public static void startupShutdownMessage(Class<?> clazz, String[] args, final Log log) {
    final String classname = clazz.getSimpleName();
    final String hostname = NetUtils.getHostname();

    final String build = VersionInfo.getUrl() + ", rev. " + VersionInfo.getRevision() + "; compiled by '"
            + VersionInfo.getUser() + "' on " + VersionInfo.getDate();
    String[] msg = new String[] { "Starting " + classname, "  host = " + hostname,
            "  args = " + Arrays.asList(args), "  version = " + VersionInfo.getVersion(),
            "  classpath = " + System.getProperty("java.class.path"), "  build = " + build,
            "  java = " + System.getProperty("java.version") };
    log.info(toStartupShutdownString("STARTUP_MSG: ", msg));

    if (SystemUtils.IS_OS_UNIX) {
        try {
            SignalLogger.INSTANCE.register(log);
        } catch (Throwable t) {
            log.warn("failed to register any UNIX signal loggers: ", t);
        }
    }
    ShutdownHookManager.get().addShutdownHook(new Runnable() {
        @Override
        public void run() {
            log.info(toStartupShutdownString("SHUTDOWN_MSG: ",
                    new String[] { "Shutting down " + classname + " at " + hostname }));
        }
    }, SHUTDOWN_HOOK_PRIORITY);
}

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From source file:org.apache.tajo.util.StringUtils.java

License:Apache License

/**
 * Print a log message for starting up and shutting down
 * @param clazz the class of the server/*  w w  w  .  ja v  a  2  s  .c om*/
 * @param args arguments
 * @param LOG the target log object
 */
public static void startupShutdownMessage(Class<?> clazz, String[] args,
        final org.apache.commons.logging.Log LOG) {
    final String hostname = org.apache.hadoop.net.NetUtils.getHostname();
    final String classname = clazz.getSimpleName();
    LOG.info(toStartupShutdownString("STARTUP_MSG: ",
            new String[] { "Starting " + classname, "  host = " + hostname, "  args = " + Arrays.asList(args),
                    "  version = " + org.apache.tajo.util.VersionInfo.getVersion(),
                    "  classpath = " + System.getProperty("java.class.path"),
                    "  build = " + org.apache.tajo.util.VersionInfo.getUrl() + " -r "
                            + org.apache.tajo.util.VersionInfo.getRevision() + "; compiled by '"
                            + org.apache.tajo.util.VersionInfo.getUser() + "' on "
                            + org.apache.tajo.util.VersionInfo.getDate(),
                    "  java = " + System.getProperty("java.version") }));

    if (SystemUtils.IS_OS_UNIX) {
        try {
            SignalLogger.INSTANCE.register(LOG);
        } catch (Throwable t) {
            LOG.warn("failed to register any UNIX signal loggers: ", t);
        }
    }
    ShutdownHookManager.get().addShutdownHook(new Runnable() {
        @Override
        public void run() {
            LOG.info(toStartupShutdownString("SHUTDOWN_MSG: ",
                    new String[] { "Shutting down " + classname + " at " + hostname }));
        }
    }, SHUTDOWN_HOOK_PRIORITY);
}

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