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HADOOP-19156. ZooKeeper based state stores use different ZK address configs. (#6767). Contributed by liu bin.

Browse Source 
Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>
Signed-off-by: He Xiaoqiao <hexiaoqiao@apache.org>
This commit is contained in:
刘斌 2024-05-29 20:44:36 +08:00 committed by GitHub
parent f4fde40524
commit 6c08e8e2aa
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23 changed files with 86 additions and 43 deletions
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32
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/curator/ZKCuratorManager.java
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@ -126,7 +126,7 @@ public static List<ZKUtil.ZKAuthInfo> getZKAuths(Configuration conf)
* Start the connection to the ZooKeeper ensemble.
* @throws IOException If the connection cannot be started.
*/
public void start() throws IOException{
public void start() throws IOException {
this.start(new ArrayList<>());
}
@ -141,23 +141,45 @@ public void start(List<AuthInfo> authInfos) throws IOException {
/**
* Start the connection to the ZooKeeper ensemble.
*
* @param zkHostPort Host:Port of the ZooKeeper.
* @throws IOException If the connection cannot be started.
*/
public void start(String zkHostPort) throws IOException {
this.start(new ArrayList<>(), false, zkHostPort);
}
/**
* Start the connection to the ZooKeeper ensemble.
* @param authInfos List of authentication keys.
* @param sslEnabled If the connection should be SSL/TLS encrypted.
* @throws IOException If the connection cannot be started.
*/
public void start(List<AuthInfo> authInfos, boolean sslEnabled)
throws IOException{
public void start(List<AuthInfo> authInfos, boolean sslEnabled) throws IOException {
this.start(authInfos, sslEnabled, null);
}
/**
* Start the connection to the ZooKeeper ensemble.
*
* @param authInfos List of authentication keys.
* @param sslEnabled If the connection should be SSL/TLS encrypted.
* @param zkHostPort Host:Port of the ZooKeeper.
* @throws IOException If the connection cannot be started.
*/
public void start(List<AuthInfo> authInfos, boolean sslEnabled, String zkHostPort)
throws IOException {
ZKClientConfig zkClientConfig = new ZKClientConfig();
// Connect to the ZooKeeper ensemble
String zkHostPort = conf.get(CommonConfigurationKeys.ZK_ADDRESS);
if (zkHostPort == null) {
zkHostPort = conf.get(CommonConfigurationKeys.ZK_ADDRESS);
if (zkHostPort == null) {
throw new IOException(
CommonConfigurationKeys.ZK_ADDRESS + " is not configured.");
}
LOG.debug("Configured {} as {}", CommonConfigurationKeys.ZK_ADDRESS, zkHostPort);
}
int numRetries = conf.getInt(CommonConfigurationKeys.ZK_NUM_RETRIES,
CommonConfigurationKeys.ZK_NUM_RETRIES_DEFAULT);

4
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/curator/TestSecureZKCuratorManager.java
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@ -71,9 +71,9 @@ public void setup() throws Exception {
DELETE_DATA_DIRECTORY_ON_CLOSE, SERVER_ID, TICK_TIME, MAX_CLIENT_CNXNS,
customConfiguration);
this.server = new TestingServer(spec, true);
this.hadoopConf.set(CommonConfigurationKeys.ZK_ADDRESS, this.server.getConnectString());
String zkHostPort = this.server.getConnectString();
this.curator = new ZKCuratorManager(this.hadoopConf);
this.curator.start(new ArrayList<>(), true);
this.curator.start(new ArrayList<>(), true, zkHostPort);
}
/**

5
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/curator/TestZKCuratorManager.java
View File

@ -60,11 +60,10 @@ public void setup() throws Exception {
this.server = new TestingServer();
Configuration conf = new Configuration();
conf.set(
CommonConfigurationKeys.ZK_ADDRESS, this.server.getConnectString());
String zkHostPort = this.server.getConnectString();
this.curator = new ZKCuratorManager(conf);
this.curator.start();
this.curator.start(zkHostPort);
}
@After

2
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RBFConfigKeys.java
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@ -260,6 +260,8 @@ public class RBFConfigKeys extends CommonConfigurationKeysPublic {
FEDERATION_STORE_ZK_DRIVER_PREFIX + "async.max.threads";
public static final int FEDERATION_STORE_ZK_ASYNC_MAX_THREADS_DEFAULT =
-1;
public static final String FEDERATION_STORE_ZK_ADDRESS =
FEDERATION_STORE_ZK_DRIVER_PREFIX + "address";
// HDFS Router-based federation File based store implementation specific configs
public static final String FEDERATION_STORE_FILE_ASYNC_THREADS =

3
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/driver/impl/StateStoreZooKeeperImpl.java
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@ -108,9 +108,10 @@ public boolean initDriver() {
} else {
LOG.info("Init StateStoreZookeeperImpl by sync mode.");
}
String zkHostPort = conf.get(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS);
try {
this.zkManager = new ZKCuratorManager(conf);
this.zkManager.start();
this.zkManager.start(zkHostPort);
this.zkAcl = ZKCuratorManager.getZKAcls(conf);
} catch (IOException e) {
LOG.error("Cannot initialize the ZK connection", e);

7
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/resources/hdfs-rbf-default.xml
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@ -388,6 +388,13 @@
</description>
</property>
<property>
<name>dfs.federation.router.store.driver.zk.address</name>
<description>
Host:Port of the ZooKeeper for StateStoreZooKeeperImpl.
</description>
</property>
<property>
<name>dfs.federation.router.store.driver.zk.parent-path</name>
<value>/hdfs-federation</value>

3
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterHeartbeatService.java
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@ -22,7 +22,6 @@
import org.apache.curator.retry.RetryNTimes;
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
import org.apache.hadoop.hdfs.server.federation.store.RouterStore;
import org.apache.hadoop.hdfs.server.federation.store.StateStoreService;
@ -74,7 +73,7 @@ public void setup() throws Exception {
.retryPolicy(new RetryNTimes(100, 100))
.build();
curatorFramework.start();
routerConfig.set(CommonConfigurationKeys.ZK_ADDRESS, connectStr);
routerConfig.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectStr);
router.init(routerConfig);
router.start();

3
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTableCacheRefresh.java
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@ -32,7 +32,6 @@
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdfs.server.federation.FederationTestUtils;
import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
@ -81,7 +80,7 @@ public static void setUp() throws Exception {
conf.setClass(RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT,
FileSubclusterResolver.class);
conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
conf.setBoolean(RBFConfigKeys.DFS_ROUTER_STORE_ENABLE, true);
cluster.addRouterOverrides(conf);
cluster.startCluster();

3
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTableCacheRefreshSecure.java
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@ -30,7 +30,6 @@
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdfs.server.federation.FederationTestUtils;
import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
@ -86,7 +85,7 @@ public static void setUp() throws Exception {
conf.setClass(RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT,
FileSubclusterResolver.class);
conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
conf.setBoolean(RBFConfigKeys.DFS_ROUTER_STORE_ENABLE, true);
cluster = new MiniRouterDFSCluster(false, numNameservices, conf);
cluster.addRouterOverrides(conf);

3
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/store/driver/TestStateStoreZK.java
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@ -32,7 +32,6 @@
import org.apache.curator.retry.RetryNTimes;
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys;
import org.apache.hadoop.hdfs.server.federation.store.StateStoreUtils;
import org.apache.hadoop.hdfs.server.federation.store.driver.impl.StateStoreZooKeeperImpl;
@ -71,7 +70,7 @@ public static void setupCluster() throws Exception {
// Create the ZK State Store
Configuration conf =
getStateStoreConfiguration(StateStoreZooKeeperImpl.class);
conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
// Disable auto-repair of connection
conf.setLong(RBFConfigKeys.FEDERATION_STORE_CONNECTION_TEST_MS,
TimeUnit.HOURS.toMillis(1));

5
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -112,8 +112,6 @@ private static void addDeprecatedKeys() {
SYSTEM_METRICS_PUBLISHER_ENABLED),
new DeprecationDelta(RM_ZK_ACL, CommonConfigurationKeys.ZK_ACL),
new DeprecationDelta(RM_ZK_AUTH, CommonConfigurationKeys.ZK_AUTH),
new DeprecationDelta(RM_ZK_ADDRESS,
CommonConfigurationKeys.ZK_ADDRESS),
new DeprecationDelta(RM_ZK_NUM_RETRIES,
CommonConfigurationKeys.ZK_NUM_RETRIES),
new DeprecationDelta(RM_ZK_TIMEOUT_MS,
@ -4038,6 +4036,9 @@ public static boolean isAclEnabled(Configuration conf) {
public static final String DEFAULT_FEDERATION_STATESTORE_CLIENT_CLASS =
"org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore";
public static final String FEDERATION_STATESTORE_ZK_ADDRESS =
FEDERATION_PREFIX + "state-store.zk.address";
public static final String FEDERATION_CACHE_TIME_TO_LIVE_SECS =
FEDERATION_PREFIX + "cache-ttl.secs";
// 5 minutes

1
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/conf/TestYarnConfigurationFields.java
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@ -142,7 +142,6 @@ public void initializeMemberVariables() {
.add(YarnConfiguration.RM_SYSTEM_METRICS_PUBLISHER_ENABLED);
// skip deprecated ZooKeeper settings
configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_ADDRESS);
configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_NUM_RETRIES);
configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_TIMEOUT_MS);
configurationPropsToSkipCompare.add(

16
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
View File

@ -581,6 +581,15 @@
<value>${yarn.resourcemanager.max-completed-applications}</value>
</property>
<property>
<description>Host:Port of the ZooKeeper server to be used by the RM. This
must be supplied when using the ZooKeeper based implementation of the
RM state store and/or embedded automatic failover in an HA setting.
</description>
<name>yarn.resourcemanager.zk-address</name>
<!--value>127.0.0.1:2181</value-->
</property>
<property>
<description>Full path of the ZooKeeper znode where RM state will be
stored. This must be supplied when using
@ -3798,6 +3807,13 @@
<value>org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore</value>
</property>
<property>
<description>
Host:Port of the ZooKeeper server to be used by the federation state store
</description>
<name>yarn.federation.state-store.zk.address</name>
</property>
<property>
<description>
The time in seconds after which the federation state store local cache

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/ZookeeperFederationStateStore.java
View File

@ -265,9 +265,10 @@ public void init(Configuration conf) throws YarnException {
baseZNode = conf.get(
YarnConfiguration.FEDERATION_STATESTORE_ZK_PARENT_PATH,
YarnConfiguration.DEFAULT_FEDERATION_STATESTORE_ZK_PARENT_PATH);
String zkHostPort = conf.get(YarnConfiguration.FEDERATION_STATESTORE_ZK_ADDRESS);
try {
this.zkManager = new ZKCuratorManager(conf);
this.zkManager.start();
this.zkManager.start(zkHostPort);
} catch (IOException e) {
LOG.error("Cannot initialize the ZK connection", e);
}

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/server/federation/store/impl/TestZookeeperFederationStateStore.java
View File

@ -27,7 +27,6 @@
import org.apache.curator.retry.RetryNTimes;
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.metrics2.MetricsRecord;
import org.apache.hadoop.metrics2.impl.MetricsCollectorImpl;
import org.apache.hadoop.metrics2.impl.MetricsRecords;
@ -94,7 +93,7 @@ public void before() throws IOException, YarnException {
curatorFramework.start();
Configuration conf = new YarnConfiguration();
conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
conf.set(YarnConfiguration.FEDERATION_STATESTORE_ZK_ADDRESS, connectString);
conf.setInt(YarnConfiguration.FEDERATION_STATESTORE_MAX_APPLICATIONS, 10);
setConf(conf);
} catch (Exception e) {

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java
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@ -410,6 +410,7 @@ protected EmbeddedElector createEmbeddedElector() throws IOException {
*/
public ZKCuratorManager createAndStartZKManager(Configuration
config) throws IOException {
String zkHostPort = config.get(YarnConfiguration.RM_ZK_ADDRESS);
ZKCuratorManager manager = new ZKCuratorManager(config);
// Get authentication
@ -432,7 +433,7 @@ public ZKCuratorManager createAndStartZKManager(Configuration
config.getBoolean(CommonConfigurationKeys.ZK_CLIENT_SSL_ENABLED,
config.getBoolean(YarnConfiguration.RM_ZK_CLIENT_SSL_ENABLED,
YarnConfiguration.DEFAULT_RM_ZK_CLIENT_SSL_ENABLED));
manager.start(authInfos, isSSLEnabled);
manager.start(authInfos, isSSLEnabled, zkHostPort);
return manager;
}

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/RMHATestBase.java
View File

@ -64,7 +64,7 @@ public void setup() throws Exception {
configuration.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
configuration.set(YarnConfiguration.RM_STORE,
ZKRMStateStore.class.getName());
configuration.set(CommonConfigurationKeys.ZK_ADDRESS, hostPort);
configuration.set(YarnConfiguration.RM_ZK_ADDRESS, hostPort);
configuration.setInt(CommonConfigurationKeys.ZK_TIMEOUT_MS, ZK_TIMEOUT_MS);
configuration.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
configuration.set(YarnConfiguration.RM_CLUSTER_ID, "test-yarn-cluster");

6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
View File

@ -213,7 +213,7 @@ private String getDelegationTokenNode(int rmDTSequenceNumber, int splitIdx) {
private RMStateStore createStore(Configuration conf) throws Exception {
workingZnode = "/jira/issue/3077/rmstore";
conf.set(CommonConfigurationKeys.ZK_ADDRESS,
conf.set(YarnConfiguration.RM_ZK_ADDRESS,
curatorTestingServer.getConnectString());
conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
conf.setLong(YarnConfiguration.RM_EPOCH, epoch);
@ -347,7 +347,7 @@ public Version getCurrentVersion() throws Exception {
public RMStateStore getRMStateStore() throws Exception {
YarnConfiguration conf = new YarnConfiguration();
workingZnode = "/jira/issue/3077/rmstore";
conf.set(CommonConfigurationKeys.ZK_ADDRESS,
conf.set(YarnConfiguration.RM_ZK_ADDRESS,
curatorTestingServer.getConnectString());
conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
this.store = new TestZKRMStateStoreInternal(conf, workingZnode) {
@ -388,7 +388,7 @@ public static Configuration createHARMConf(String rmIds, String rmId,
conf.set(YarnConfiguration.RM_HA_IDS, rmIds);
conf.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
conf.set(YarnConfiguration.RM_STORE, ZKRMStateStore.class.getName());
conf.set(CommonConfigurationKeys.ZK_ADDRESS,
conf.set(YarnConfiguration.RM_ZK_ADDRESS,
curatorTestServer.getConnectString());
conf.setInt(CommonConfigurationKeys.ZK_TIMEOUT_MS, ZK_TIMEOUT_MS);
conf.set(YarnConfiguration.RM_HA_ID, rmId);

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java
View File

@ -88,7 +88,7 @@ public TestZKRMStateStore(Configuration conf, String workingZnode)
public RMStateStore getRMStateStore(Configuration conf) throws Exception {
String workingZnode = "/Test";
conf.set(CommonConfigurationKeys.ZK_ADDRESS,
conf.set(YarnConfiguration.RM_ZK_ADDRESS,
testingServer.getConnectString());
conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
this.store = new TestZKRMStateStore(conf, workingZnode);

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/conf/TestZKConfigurationStore.java
View File

@ -23,7 +23,6 @@
import org.apache.curator.retry.RetryNTimes;
import org.apache.curator.test.TestingServer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.ha.HAServiceProtocol;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.service.Service;
@ -100,7 +99,7 @@ public void setUp() throws Exception {
curatorTestingServer = setupCuratorServer();
curatorFramework = setupCuratorFramework(curatorTestingServer);
conf.set(CommonConfigurationKeys.ZK_ADDRESS,
conf.set(YarnConfiguration.RM_ZK_ADDRESS,
curatorTestingServer.getConnectString());
rm = new MockRM(conf);
rm.start();

8
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/Federation.md
View File

@ -177,7 +177,7 @@ ZooKeeper: one must set the ZooKeeper settings for Hadoop:
| Property | Example | Description |
|:------------------------------------|:------------------------------------------------------------------------------------|:----------------------------------------|
| `yarn.federation.state-store.class` | `org.apache.hadoop.yarn.server.federation.store.impl.ZookeeperFederationStateStore` | The type of state-store to use. |
| `hadoop.zk.address` | `host:port` | The address for the ZooKeeper ensemble. |
| `yarn.federation.state-store.zk.address` | `host:port` | The address for the ZooKeeper ensemble. |
SQL: one must setup the following parameters:
@ -1006,7 +1006,7 @@ Example of Machine-Role Mapping(Exclude HDFS):
<!-- ZK Address. -->
<property>
<name>hadoop.zk.address</name>
<name>yarn.federation.state-store.zk.address</name>
<value>zkHost:zkPort</value>
</property>
@ -1067,7 +1067,7 @@ $HADOOP_HOME/bin/yarn --daemon start resourcemanager
<!-- ZK Address. -->
<property>
<name>hadoop.zk.address</name>
<name>yarn.federation.state-store.zk.address</name>
<value>zkHost:zkPort</value>
</property>
@ -1135,7 +1135,7 @@ After we have finished configuring the `YARN-2` cluster, we can proceed with sta
<!-- ZK Address. -->
<property>
<name>hadoop.zk.address</name>
<name>yarn.federation.state-store.zk.address</name>
<value>zkHost:zkPort</value>
</property>

4
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceManagerHA.md
View File

@ -56,7 +56,7 @@ Most of the failover functionality is tunable using various configuration proper
| Configuration Properties | Description |
|:---- |:---- |
| `hadoop.zk.address` | Address of the ZK-quorum. Used both for the state-store and embedded leader-election. |
| `yarn.resourcemanager.zk-address` | Address of the ZK-quorum. Used both for the state-store and embedded leader-election. |
| `yarn.resourcemanager.ha.enabled` | Enable RM HA. |
| `yarn.resourcemanager.ha.rm-ids` | List of logical IDs for the RMs. e.g., "rm1,rm2". |
| `yarn.resourcemanager.hostname.`*rm-id* | For each *rm-id*, specify the hostname the RM corresponds to. Alternately, one could set each of the RM's service addresses. |
@ -112,7 +112,7 @@ Here is the sample of minimal setup for RM failover.
<value>master2:8088</value>
</property>
<property>
<name>hadoop.zk.address</name>
<name>yarn.resourcemanager.zk-address</name>
<value>zk1:2181,zk2:2181,zk3:2181</value>
</property>
```

4
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceManagerRestart.md
View File

@ -93,7 +93,7 @@ This section describes the configurations involved to enable RM Restart feature.
| Property | Description |
|:---- |:---- |
| `hadoop.zk.address` | Comma separated list of Host:Port pairs. Each corresponds to a ZooKeeper server (e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state. |
| `yarn.resourcemanager.zk-address` | Comma separated list of Host:Port pairs. Each corresponds to a ZooKeeper server (e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state. |
| `yarn.resourcemanager.zk-state-store.parent-path` | The full path of the root znode where RM state will be stored. Default value is /rmstore. |
* Configure the retry policy state-store client uses to connect with the ZooKeeper server.
@ -157,7 +157,7 @@ Below is a minimum set of configurations for enabling RM work-preserving restart
(e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state.
This must be supplied when using org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
as the value for yarn.resourcemanager.store.class</description>
<name>hadoop.zk.address</name>
<name>yarn.resourcemanager.zk-address</name>
<value>127.0.0.1:2181</value>
</property>