/**
* Copyright The Apache Software Foundation
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package com.alibaba.wasp.master;
import com.alibaba.wasp.FConstants;
import com.alibaba.wasp.ServerName;
import com.alibaba.wasp.WaspTestingUtility;
import com.alibaba.wasp.ipc.WaspRPC;
import com.alibaba.wasp.protobuf.ProtobufUtil;
import com.alibaba.wasp.protobuf.generated.MasterProtos;
import com.google.protobuf.ServiceException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.ipc.RemoteException;
import org.junit.Test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketTimeoutException;
import static org.junit.Assert.fail;
public class TestWaspRPCException {
@Test
public void testRPCException() throws Exception {
WaspTestingUtility TEST_UTIL = new WaspTestingUtility();
TEST_UTIL.getHBaseTestingUtility().startMiniZKCluster();
Configuration conf = TEST_UTIL.getConfiguration();
conf.set(FConstants.MASTER_PORT, "0");
TEST_UTIL.getConfiguration().set(FConstants.ZOOKEEPER_QUORUM,
TEST_UTIL.getConfiguration().get(HConstants.ZOOKEEPER_QUORUM));
TEST_UTIL.getConfiguration().set(FConstants.ZOOKEEPER_CLIENT_PORT,
TEST_UTIL.getConfiguration().get(HConstants.ZOOKEEPER_CLIENT_PORT));
FMaster hm = new FMaster(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 {
FMasterMonitorProtocol inf = (FMasterMonitorProtocol) WaspRPC.getProxy(
FMasterMonitorProtocol.class, FMasterMonitorProtocol.VERSION, isa,
conf, 100 * 10);
inf.isMasterRunning(null, MasterProtos.IsMasterRunningRequest.getDefaultInstance());
fail();
} catch (ServiceException ex) {
IOException ie = ProtobufUtil.getRemoteException(ex);
if (ie instanceof RemoteException) {
ie = ((RemoteException) ie).unwrapRemoteException();
}
if (!(ie instanceof SocketTimeoutException)) {
if (ie.getMessage().indexOf("Server is not running yet") != -1) {
return;
}
} else {
System.err.println("Got SocketTimeoutException. Will retry. ");
}
} catch (Throwable t) {
fail("Unexpected throwable: " + t);
}
Thread.sleep(100);
i++;
}
fail();
}
}