@Test
public void testDefaultMasterMetrics() throws Exception {
MetricsMasterSource masterSource = master.getMasterMetrics().getMetricsSource();
metricsHelper.assertGauge("numRegionServers", 2, masterSource);
metricsHelper.assertGauge("averageLoad", 2, masterSource);
metricsHelper.assertGauge("numDeadRegionServers", 0, masterSource);
metricsHelper.assertGauge("masterStartTime", master.getMasterStartTime(), masterSource);
metricsHelper.assertGauge("masterActiveTime", master.getMasterActiveTime(), masterSource);
metricsHelper.assertTag("isActiveMaster", "true", masterSource);
metricsHelper.assertTag("serverName", master.getServerName().toString(), masterSource);
metricsHelper.assertTag("clusterId", master.getClusterId(), masterSource);
metricsHelper.assertTag("zookeeperQuorum", master.getZooKeeper().getQuorum(), masterSource);
}
@Test
public void testRPCException() throws Exception {
HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
TEST_UTIL.startMiniZKCluster();
Configuration conf = TEST_UTIL.getConfiguration();
conf.set(HConstants.MASTER_PORT, "0");
HMaster hm = new HMaster(conf);
ServerName sm = hm.getServerName();
InetSocketAddress isa = new InetSocketAddress(sm.getHostname(), sm.getPort());
int i = 0;
// retry the RPC a few times; we have seen SocketTimeoutExceptions if we
// try to connect too soon. Retry on SocketTimeoutException.
while (i < 20) {
try {
MasterMonitorProtocol inf =
(MasterMonitorProtocol)
HBaseClientRPC.getProxy(MasterMonitorProtocol.class, isa, conf, 100 * 10);
inf.isMasterRunning(null, IsMasterRunningRequest.getDefaultInstance());
fail();
} catch (ServiceException ex) {
IOException ie = ProtobufUtil.getRemoteException(ex);
if (!(ie instanceof SocketTimeoutException)) {
if (ie.getMessage()
.startsWith(
"org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet")) {
return;
}
} else {
System.err.println("Got SocketTimeoutException. Will retry. ");
}
} catch (Throwable t) {
fail("Unexpected throwable: " + t);
}
Thread.sleep(100);
i++;
}
fail();
}
