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YARN-8010. Add config in FederationRMFailoverProxy to not bypass facade cache when failing over. (Botong Huang via Subru). 

(cherry picked from commit 2a2ef15caf)
This commit is contained in:
Subru Krishnan 2018-03-27 17:39:46 -07:00
parent 827d2015c4
commit 0ab1d2f25b
3 changed files with 23 additions and 6 deletions
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9
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -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";

9
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
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@ -2823,6 +2823,15 @@
<value>300</value>
</property>
<property>
<description>
Whether to flush FederationStateStoreFacade cache to get subcluster info
when FederationRMFailoverProxyProvider is performing failover.
</description>
<name>yarn.federation.flush-cache-for-rm-addr</name>
<value>true</value>
</property>
<property>
<description>The registry base directory for federation.</description>
<name>yarn.federation.registry.base-dir</name>

11
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/failover/FederationRMFailoverProxyProvider.java
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@ -64,7 +64,8 @@ public class FederationRMFailoverProxyProvider<T>
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<T> proxy,
@ -75,13 +76,16 @@ public class FederationRMFailoverProxyProvider<T>
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<T>
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);