diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
index 7c25be3db67..ac7e1687348 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
@@ -2806,15 +2806,18 @@ public class YarnConfiguration extends Configuration {
public static final String FEDERATION_CACHE_TIME_TO_LIVE_SECS =
FEDERATION_PREFIX + "cache-ttl.secs";
+ // 5 minutes
+ public static final int DEFAULT_FEDERATION_CACHE_TIME_TO_LIVE_SECS = 5 * 60;
+
+ public static final String FEDERATION_FLUSh_CACHE_FOR_RM_ADDR =
+ FEDERATION_PREFIX + "flush-cache-for-rm-addr";
+ public static final boolean DEFAULT_FEDERATION_FLUSh_CACHE_FOR_RM_ADDR = true;
public static final String FEDERATION_REGISTRY_BASE_KEY =
FEDERATION_PREFIX + "registry.base-dir";
public static final String DEFAULT_FEDERATION_REGISTRY_BASE_KEY =
"yarnfederation/";
- // 5 minutes
- public static final int DEFAULT_FEDERATION_CACHE_TIME_TO_LIVE_SECS = 5 * 60;
-
public static final String FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS =
FEDERATION_PREFIX + "state-store.heartbeat-interval-secs";
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
index 24279f5ad7c..5225da27d1c 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
@@ -2823,6 +2823,15 @@
300
+
+
+ Whether to flush FederationStateStoreFacade cache to get subcluster info
+ when FederationRMFailoverProxyProvider is performing failover.
+
+ yarn.federation.flush-cache-for-rm-addr
+ true
+
+
The registry base directory for federation.
yarn.federation.registry.base-dir
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/failover/FederationRMFailoverProxyProvider.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/failover/FederationRMFailoverProxyProvider.java
index c631208b783..b72b1993594 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/failover/FederationRMFailoverProxyProvider.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/failover/FederationRMFailoverProxyProvider.java
@@ -64,7 +64,8 @@ public class FederationRMFailoverProxyProvider
private FederationStateStoreFacade facade;
private SubClusterId subClusterId;
private UserGroupInformation originalUser;
- private boolean federationFailoverEnabled = false;
+ private boolean federationFailoverEnabled;
+ private boolean flushFacadeCacheForYarnRMAddr;
@Override
public void init(Configuration configuration, RMProxy proxy,
@@ -75,13 +76,16 @@ public class FederationRMFailoverProxyProvider
String clusterId = configuration.get(YarnConfiguration.RM_CLUSTER_ID);
Preconditions.checkNotNull(clusterId, "Missing RM ClusterId");
this.subClusterId = SubClusterId.newInstance(clusterId);
- this.facade = facade.getInstance();
+ this.facade = FederationStateStoreFacade.getInstance();
if (configuration instanceof YarnConfiguration) {
this.conf = (YarnConfiguration) configuration;
}
federationFailoverEnabled =
conf.getBoolean(YarnConfiguration.FEDERATION_FAILOVER_ENABLED,
YarnConfiguration.DEFAULT_FEDERATION_FAILOVER_ENABLED);
+ flushFacadeCacheForYarnRMAddr =
+ conf.getBoolean(YarnConfiguration.FEDERATION_FLUSh_CACHE_FOR_RM_ADDR,
+ YarnConfiguration.DEFAULT_FEDERATION_FLUSh_CACHE_FOR_RM_ADDR);
conf.setInt(
CommonConfigurationKeysPublic.IPC_CLIENT_CONNECT_MAX_RETRIES_KEY,
@@ -119,7 +123,8 @@ public class FederationRMFailoverProxyProvider
try {
LOG.info("Failing over to the ResourceManager for SubClusterId: {}",
subClusterId);
- subClusterInfo = facade.getSubCluster(subClusterId, isFailover);
+ subClusterInfo = facade.getSubCluster(subClusterId,
+ this.flushFacadeCacheForYarnRMAddr && isFailover);
// updating the conf with the refreshed RM addresses as proxy
// creations are based out of conf
updateRMAddress(subClusterInfo);