HDFS-14351. RBF: Optimize configuration item resolving for monitor namenode. Contributed by He Xiaoqiao and Inigo Goiri.
This commit is contained in:
Ayush Saxena
Brahma Reddy Battula
parent
6c686253e9
commit
5cb7a4de34
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@ -497,10 +497,9 @@ public class Router extends CompositeService {
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}
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// Create heartbeat services for a list specified by the admin
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String namenodes = this.conf.get(
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Collection<String> namenodes = this.conf.getTrimmedStringCollection(
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RBFConfigKeys.DFS_ROUTER_MONITOR_NAMENODE);
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if (namenodes != null) {
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for (String namenode : namenodes.split(",")) {
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for (String namenode : namenodes) {
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String[] namenodeSplit = namenode.split("\\.");
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String nsId = null;
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String nnId = null;
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@ -520,7 +519,6 @@ public class Router extends CompositeService {
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}
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}
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}
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}
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return ret.values();
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}
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@ -0,0 +1,225 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hdfs.server.federation;
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import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_ADMIN;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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import java.io.IOException;
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import java.net.URI;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState;
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import org.apache.hadoop.ha.HAServiceStatus;
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import org.apache.hadoop.ha.proto.HAServiceProtocolProtos.HAServiceProtocolService;
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import org.apache.hadoop.ha.protocolPB.HAServiceProtocolPB;
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import org.apache.hadoop.ha.protocolPB.HAServiceProtocolServerSideTranslatorPB;
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import org.apache.hadoop.hdfs.DFSUtil;
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import org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos.ClientNamenodeProtocol;
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import org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos.DatanodeProtocolService;
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import org.apache.hadoop.hdfs.protocol.proto.NamenodeProtocolProtos.NamenodeProtocolService;
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import org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolPB;
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import org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB;
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import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolPB;
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import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB;
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import org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolPB;
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import org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolServerSideTranslatorPB;
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import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
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import org.apache.hadoop.hdfs.server.protocol.NamespaceInfo;
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import org.apache.hadoop.http.HttpServer2;
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import org.apache.hadoop.ipc.ProtobufRpcEngine;
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import org.apache.hadoop.ipc.RPC;
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import org.apache.hadoop.ipc.RPC.Server;
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import org.apache.hadoop.security.authorize.AccessControlList;
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import org.mockito.invocation.InvocationOnMock;
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import org.mockito.stubbing.Answer;
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import com.google.protobuf.BlockingService;
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/**
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* Mock for the network interfaces (e.g., RPC and HTTP) of a Namenode. This is
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* used by the Routers in a mock cluster.
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*/
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public class MockNamenode {
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/** Mock implementation of the Namenode. */
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private final NamenodeProtocols mockNn;
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/** HA state of the Namenode. */
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private HAServiceState haState = HAServiceState.STANDBY;
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/** RPC server of the Namenode that redirects calls to the mock. */
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private Server rpcServer;
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/** HTTP server of the Namenode that redirects calls to the mock. */
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private HttpServer2 httpServer;
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public MockNamenode() throws Exception {
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Configuration conf = new Configuration();
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this.mockNn = mock(NamenodeProtocols.class);
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setupMock();
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setupRPCServer(conf);
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setupHTTPServer(conf);
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}
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/**
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* Setup the mock of the Namenode. It offers the basic functionality for
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* Routers to get the status.
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* @throws IOException If the mock cannot be setup.
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*/
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protected void setupMock() throws IOException {
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NamespaceInfo nsInfo = new NamespaceInfo(1, "clusterId", "bpId", 1);
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when(mockNn.versionRequest()).thenReturn(nsInfo);
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when(mockNn.getServiceStatus()).thenAnswer(new Answer<HAServiceStatus>() {
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@Override
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public HAServiceStatus answer(InvocationOnMock invocation)
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throws Throwable {
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HAServiceStatus haStatus = new HAServiceStatus(getHAServiceState());
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haStatus.setNotReadyToBecomeActive("");
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return haStatus;
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}
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});
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}
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/**
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* Setup the RPC server of the Namenode that redirects calls to the mock.
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* @param conf Configuration of the server.
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* @throws IOException If the RPC server cannot be setup.
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*/
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private void setupRPCServer(final Configuration conf) throws IOException {
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RPC.setProtocolEngine(
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conf, ClientNamenodeProtocolPB.class, ProtobufRpcEngine.class);
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ClientNamenodeProtocolServerSideTranslatorPB
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clientNNProtoXlator =
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new ClientNamenodeProtocolServerSideTranslatorPB(mockNn);
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BlockingService clientNNPbService =
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ClientNamenodeProtocol.newReflectiveBlockingService(
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clientNNProtoXlator);
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rpcServer = new RPC.Builder(conf)
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.setProtocol(ClientNamenodeProtocolPB.class)
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.setInstance(clientNNPbService)
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.setBindAddress("0.0.0.0")
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.setPort(0)
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.build();
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NamenodeProtocolServerSideTranslatorPB nnProtoXlator =
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new NamenodeProtocolServerSideTranslatorPB(mockNn);
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BlockingService nnProtoPbService =
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NamenodeProtocolService.newReflectiveBlockingService(
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nnProtoXlator);
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DFSUtil.addPBProtocol(
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conf, NamenodeProtocolPB.class, nnProtoPbService, rpcServer);
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DatanodeProtocolServerSideTranslatorPB dnProtoPbXlator =
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new DatanodeProtocolServerSideTranslatorPB(mockNn, 1000);
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BlockingService dnProtoPbService =
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DatanodeProtocolService.newReflectiveBlockingService(
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dnProtoPbXlator);
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DFSUtil.addPBProtocol(
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conf, DatanodeProtocolPB.class, dnProtoPbService, rpcServer);
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HAServiceProtocolServerSideTranslatorPB haServiceProtoXlator =
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new HAServiceProtocolServerSideTranslatorPB(mockNn);
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BlockingService haProtoPbService =
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HAServiceProtocolService.newReflectiveBlockingService(
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haServiceProtoXlator);
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DFSUtil.addPBProtocol(
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conf, HAServiceProtocolPB.class, haProtoPbService, rpcServer);
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rpcServer.start();
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}
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/**
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* Setup the HTTP server of the Namenode that redirects calls to the mock.
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* @param conf Configuration of the server.
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* @throws IOException If the HTTP server cannot be setup.
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*/
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private void setupHTTPServer(Configuration conf) throws IOException {
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HttpServer2.Builder builder = new HttpServer2.Builder()
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.setName("hdfs")
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.setConf(conf)
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.setACL(new AccessControlList(conf.get(DFS_ADMIN, " ")))
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.addEndpoint(URI.create("http://0.0.0.0:0"));
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httpServer = builder.build();
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httpServer.start();
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}
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/**
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* Get the RPC port for the Mock Namenode.
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* @return RPC port.
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*/
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public int getRPCPort() {
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return rpcServer.getListenerAddress().getPort();
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}
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/**
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* Get the HTTP port for the Mock Namenode.
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* @return HTTP port.
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*/
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public int getHTTPPort() {
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return httpServer.getConnectorAddress(0).getPort();
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}
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/**
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* Get the Mock core. This is used to extend the mock.
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* @return Mock Namenode protocol to be extended.
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*/
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public NamenodeProtocols getMock() {
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return mockNn;
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}
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/**
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* Get the HA state of the Mock Namenode.
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* @return HA state (ACTIVE or STANDBY).
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*/
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public HAServiceState getHAServiceState() {
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return haState;
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}
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/**
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* Show the Mock Namenode as Active.
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*/
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public void transitionToActive() {
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this.haState = HAServiceState.ACTIVE;
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}
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/**
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* Show the Mock Namenode as Standby.
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*/
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public void transitionToStandby() {
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this.haState = HAServiceState.STANDBY;
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}
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/**
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* Stop the Mock Namenode. It stops all the servers.
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* @throws Exception If it cannot stop the Namenode.
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*/
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public void stop() throws Exception {
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if (rpcServer != null) {
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rpcServer.stop();
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}
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if (httpServer != null) {
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httpServer.stop();
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}
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}
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}
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@ -17,127 +17,251 @@
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*/
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package org.apache.hadoop.hdfs.server.federation.router;
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import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_NAMENODE_ID_KEY;
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import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMESERVICE_ID;
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import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_ROUTER_MONITOR_NAMENODE;
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import static org.junit.Assert.assertEquals;
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import static java.util.Arrays.asList;
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import static org.apache.hadoop.hdfs.server.federation.store.FederationStateStoreTestUtils.getStateStoreConfiguration;
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import static org.junit.Assert.assertTrue;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeSet;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.hdfs.DFSConfigKeys;
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import org.apache.hadoop.hdfs.HdfsConfiguration;
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import org.apache.hadoop.hdfs.server.federation.MockNamenode;
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import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
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import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
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import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
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import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
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import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
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import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeContext;
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import org.apache.hadoop.hdfs.server.federation.resolver.FileSubclusterResolver;
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import org.apache.hadoop.hdfs.server.federation.resolver.MembershipNamenodeResolver;
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import org.apache.hadoop.hdfs.server.federation.resolver.MountTableResolver;
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import org.apache.hadoop.hdfs.server.federation.resolver.NamenodeStatusReport;
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import org.apache.hadoop.util.StringUtils;
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import org.apache.hadoop.util.Time;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Test namenodes monitor behavior in the Router.
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*/
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public class TestRouterNamenodeMonitoring {
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private static StateStoreDFSCluster cluster;
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private static RouterContext routerContext;
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private static MembershipNamenodeResolver resolver;
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private static final Logger LOG =
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LoggerFactory.getLogger(TestRouterNamenodeMonitoring.class);
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private String ns0;
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private String ns1;
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/** Router for the test. */
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private Router router;
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/** Namenodes in the cluster. */
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private Map<String, Map<String, MockNamenode>> nns = new HashMap<>();
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/** Nameservices in the federated cluster. */
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private List<String> nsIds = asList("ns0", "ns1");
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/** Time the test starts. */
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private long initializedTime;
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@Before
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public void setUp() throws Exception {
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// Build and start a federated cluster with HA enabled
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cluster = new StateStoreDFSCluster(true, 2);
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// Enable heartbeat service and local heartbeat
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Configuration routerConf = new RouterConfigBuilder()
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.stateStore()
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.admin()
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.rpc()
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.enableLocalHeartbeat(true)
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.heartbeat()
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.build();
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// Specify local node (ns0.nn1) to monitor
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StringBuilder sb = new StringBuilder();
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ns0 = cluster.getNameservices().get(0);
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NamenodeContext context = cluster.getNamenodes(ns0).get(1);
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routerConf.set(DFS_NAMESERVICE_ID, ns0);
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routerConf.set(DFS_HA_NAMENODE_ID_KEY, context.getNamenodeId());
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// Specify namenodes (ns1.nn0,ns1.nn1) to monitor
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sb = new StringBuilder();
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ns1 = cluster.getNameservices().get(1);
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for (NamenodeContext ctx : cluster.getNamenodes(ns1)) {
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String suffix = ctx.getConfSuffix();
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if (sb.length() != 0) {
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sb.append(",");
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public void setup() throws Exception {
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LOG.info("Initialize the Mock Namenodes to monitor");
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for (String nsId : nsIds) {
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nns.put(nsId, new HashMap<>());
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for (String nnId : asList("nn0", "nn1")) {
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nns.get(nsId).put(nnId, new MockNamenode());
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}
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sb.append(suffix);
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}
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// override with the namenodes: ns1.nn0,ns1.nn1
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routerConf.set(DFS_ROUTER_MONITOR_NAMENODE, sb.toString());
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cluster.addRouterOverrides(routerConf);
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cluster.startCluster();
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cluster.startRouters();
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cluster.waitClusterUp();
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LOG.info("Set nn0 to active for all nameservices");
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for (Map<String, MockNamenode> nnNS : nns.values()) {
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nnNS.get("nn0").transitionToActive();
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nnNS.get("nn1").transitionToStandby();
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}
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routerContext = cluster.getRandomRouter();
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resolver = (MembershipNamenodeResolver) routerContext.getRouter()
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.getNamenodeResolver();
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initializedTime = Time.now();
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}
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@After
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public void tearDown() {
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if (cluster != null) {
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cluster.stopRouter(routerContext);
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cluster.shutdown();
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cluster = null;
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public void cleanup() throws Exception {
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for (Map<String, MockNamenode> nnNS : nns.values()) {
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for (MockNamenode nn : nnNS.values()) {
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nn.stop();
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}
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}
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nns.clear();
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if (router != null) {
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router.stop();
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}
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}
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/**
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* Get the configuration of the cluster which contains all the Namenodes and
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* their addresses.
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* @return Configuration containing all the Namenodes.
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*/
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private Configuration getNamenodesConfig() {
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final Configuration conf = new HdfsConfiguration();
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conf.set(DFSConfigKeys.DFS_NAMESERVICES,
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StringUtils.join(",", nns.keySet()));
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for (String nsId : nns.keySet()) {
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Set<String> nnIds = nns.get(nsId).keySet();
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StringBuilder sb = new StringBuilder();
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sb.append(DFSConfigKeys.DFS_HA_NAMENODES_KEY_PREFIX);
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sb.append(".").append(nsId);
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conf.set(sb.toString(), StringUtils.join(",", nnIds));
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for (String nnId : nnIds) {
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final MockNamenode nn = nns.get(nsId).get(nnId);
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sb = new StringBuilder();
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sb.append(DFSConfigKeys.DFS_NAMENODE_RPC_ADDRESS_KEY);
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sb.append(".").append(nsId);
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sb.append(".").append(nnId);
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conf.set(sb.toString(), "localhost:" + nn.getRPCPort());
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sb = new StringBuilder();
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sb.append(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY);
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sb.append(".").append(nsId);
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sb.append(".").append(nnId);
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conf.set(sb.toString(), "localhost:" + nn.getHTTPPort());
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}
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}
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return conf;
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}
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@Test
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public void testNamenodeMonitoring() throws Exception {
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// Set nn0 to active for all nameservices
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for (String ns : cluster.getNameservices()) {
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cluster.switchToActive(ns, "nn0");
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cluster.switchToStandby(ns, "nn1");
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}
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Configuration nsConf = getNamenodesConfig();
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Collection<NamenodeHeartbeatService> heartbeatServices = routerContext
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.getRouter().getNamenodeHeartbeatServices();
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// manually trigger the heartbeat
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// Setup the State Store for the Router to use
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Configuration stateStoreConfig = getStateStoreConfiguration();
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stateStoreConfig.setClass(
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RBFConfigKeys.FEDERATION_NAMENODE_RESOLVER_CLIENT_CLASS,
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MembershipNamenodeResolver.class, ActiveNamenodeResolver.class);
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stateStoreConfig.setClass(
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RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
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MountTableResolver.class, FileSubclusterResolver.class);
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Configuration routerConf = new RouterConfigBuilder(nsConf)
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.enableLocalHeartbeat(true)
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.heartbeat()
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.stateStore()
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.rpc()
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.build();
|
||||
|
||||
// Specify namenodes (ns1.nn0,ns1.nn1) to monitor
|
||||
routerConf.set(RBFConfigKeys.DFS_ROUTER_RPC_ADDRESS_KEY, "0.0.0.0:0");
|
||||
routerConf.set(RBFConfigKeys.DFS_ROUTER_MONITOR_NAMENODE,
|
||||
"ns1.nn0,ns1.nn1");
|
||||
routerConf.addResource(stateStoreConfig);
|
||||
|
||||
// Specify local node (ns0.nn1) to monitor
|
||||
routerConf.set(DFSConfigKeys.DFS_NAMESERVICE_ID, "ns0");
|
||||
routerConf.set(DFSConfigKeys.DFS_HA_NAMENODE_ID_KEY, "nn1");
|
||||
|
||||
// Start the Router with the namenodes to monitor
|
||||
router = new Router();
|
||||
router.init(routerConf);
|
||||
router.start();
|
||||
|
||||
// Manually trigger the heartbeat and update the values
|
||||
Collection<NamenodeHeartbeatService> heartbeatServices =
|
||||
router.getNamenodeHeartbeatServices();
|
||||
for (NamenodeHeartbeatService service : heartbeatServices) {
|
||||
service.periodicInvoke();
|
||||
}
|
||||
|
||||
MembershipNamenodeResolver resolver =
|
||||
(MembershipNamenodeResolver) router.getNamenodeResolver();
|
||||
resolver.loadCache(true);
|
||||
List<? extends FederationNamenodeContext> namespaceInfo0 =
|
||||
resolver.getNamenodesForNameserviceId(ns0);
|
||||
List<? extends FederationNamenodeContext> namespaceInfo1 =
|
||||
resolver.getNamenodesForNameserviceId(ns1);
|
||||
|
||||
// The modified date won't be updated in ns0.nn0 since it isn't
|
||||
// monitored by the Router.
|
||||
assertEquals("nn0", namespaceInfo0.get(1).getNamenodeId());
|
||||
assertTrue(namespaceInfo0.get(1).getDateModified() < initializedTime);
|
||||
|
||||
// Check that the monitored values are expected
|
||||
final List<FederationNamenodeContext> namespaceInfo = new ArrayList<>();
|
||||
for (String nsId : nns.keySet()) {
|
||||
List<? extends FederationNamenodeContext> nnReports =
|
||||
resolver.getNamenodesForNameserviceId(nsId);
|
||||
namespaceInfo.addAll(nnReports);
|
||||
}
|
||||
for (FederationNamenodeContext nnInfo : namespaceInfo) {
|
||||
long modTime = nnInfo.getDateModified();
|
||||
long diff = modTime - initializedTime;
|
||||
if ("ns0".equals(nnInfo.getNameserviceId()) &&
|
||||
"nn0".equals(nnInfo.getNamenodeId())) {
|
||||
// The modified date won't be updated in ns0.nn0
|
||||
// since it isn't monitored by the Router.
|
||||
assertTrue(nnInfo + " shouldn't be updated: " + diff,
|
||||
modTime < initializedTime);
|
||||
} else {
|
||||
// other namnodes should be updated as expected
|
||||
assertEquals("nn1", namespaceInfo0.get(0).getNamenodeId());
|
||||
assertTrue(namespaceInfo0.get(0).getDateModified() > initializedTime);
|
||||
assertTrue(nnInfo + " should be updated: " + diff,
|
||||
modTime > initializedTime);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
assertEquals("nn0", namespaceInfo1.get(0).getNamenodeId());
|
||||
assertTrue(namespaceInfo1.get(0).getDateModified() > initializedTime);
|
||||
@Test
|
||||
public void testNamenodeMonitoringConfig() throws Exception {
|
||||
testConfig(asList(), "");
|
||||
testConfig(asList("ns1.nn0"), "ns1.nn0");
|
||||
testConfig(asList("ns1.nn0", "ns1.nn1"), "ns1.nn0,ns1.nn1");
|
||||
testConfig(asList("ns1.nn0", "ns1.nn1"), "ns1.nn0, ns1.nn1");
|
||||
testConfig(asList("ns1.nn0", "ns1.nn1"), " ns1.nn0,ns1.nn1");
|
||||
testConfig(asList("ns1.nn0", "ns1.nn1"), "ns1.nn0,ns1.nn1,");
|
||||
}
|
||||
|
||||
assertEquals("nn1", namespaceInfo1.get(1).getNamenodeId());
|
||||
assertTrue(namespaceInfo1.get(1).getDateModified() > initializedTime);
|
||||
/**
|
||||
* Test if configuring a Router to monitor particular Namenodes actually
|
||||
* takes effect.
|
||||
* @param expectedNNs Namenodes that should be monitored.
|
||||
* @param confNsIds Router configuration setting for Namenodes to monitor.
|
||||
*/
|
||||
private void testConfig(
|
||||
Collection<String> expectedNNs, String confNsIds) {
|
||||
|
||||
// Setup and start the Router
|
||||
Configuration conf = getNamenodesConfig();
|
||||
Configuration routerConf = new RouterConfigBuilder(conf)
|
||||
.heartbeat(true)
|
||||
.build();
|
||||
routerConf.set(RBFConfigKeys.DFS_ROUTER_RPC_ADDRESS_KEY, "0.0.0.0:0");
|
||||
routerConf.set(RBFConfigKeys.DFS_ROUTER_MONITOR_NAMENODE, confNsIds);
|
||||
router = new Router();
|
||||
router.init(routerConf);
|
||||
|
||||
// Test the heartbeat services of the Router
|
||||
Collection<NamenodeHeartbeatService> heartbeatServices =
|
||||
router.getNamenodeHeartbeatServices();
|
||||
assertNamenodeHeartbeatService(expectedNNs, heartbeatServices);
|
||||
}
|
||||
|
||||
/**
|
||||
* Assert that the namenodes monitored by the Router are the expected.
|
||||
* @param expected Expected namenodes.
|
||||
* @param actual Actual heartbeat services for the Router
|
||||
*/
|
||||
private static void assertNamenodeHeartbeatService(
|
||||
Collection<String> expected,
|
||||
Collection<NamenodeHeartbeatService> actual) {
|
||||
|
||||
final Set<String> actualSet = new TreeSet<>();
|
||||
for (NamenodeHeartbeatService heartbeatService : actual) {
|
||||
NamenodeStatusReport report = heartbeatService.getNamenodeStatusReport();
|
||||
StringBuilder sb = new StringBuilder();
|
||||
sb.append(report.getNameserviceId());
|
||||
sb.append(".");
|
||||
sb.append(report.getNamenodeId());
|
||||
actualSet.add(sb.toString());
|
||||
}
|
||||
assertTrue(expected + " does not contain all " + actualSet,
|
||||
expected.containsAll(actualSet));
|
||||
assertTrue(actualSet + " does not contain all " + expected,
|
||||
actualSet.containsAll(expected));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue