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YARN-4132. Separate configs for nodemanager to resourcemanager connection timeout and retries. Contributed by Chang Li

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This commit is contained in:
Jason Lowe 2015-11-24 22:35:37 +00:00
parent f634505d48
commit 4ac6799d4a
6 changed files with 181 additions and 4 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -571,6 +571,9 @@ Release 2.8.0 - UNRELEASED
YARN-3980. Plumb resource-utilization info in node heartbeat through to the
scheduler. (Inigo Goiri via kasha)
YARN-4132. Separate configs for nodemanager to resourcemanager connection
timeout and retries (Chang Li via jlowe)
OPTIMIZATIONS
YARN-3339. TestDockerContainerExecutor should pull a single image and not

16
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -2051,6 +2051,22 @@ private static void addDeprecatedKeys() {
public static final String YARN_HTTP_POLICY_DEFAULT = HttpConfig.Policy.HTTP_ONLY
.name();
/**
* Max time to wait for NM to connection to RM.
* When not set, proxy will fall back to use value of
* RESOURCEMANAGER_CONNECT_MAX_WAIT_MS.
*/
public static final String NM_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS =
YARN_PREFIX + "nodemanager.resourcemanager.connect.max-wait.ms";
/**
* Time interval between each NM attempt to connection to RM.
* When not set, proxy will fall back to use value of
* RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS.
*/
public static final String NM_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS =
YARN_PREFIX + "nodemanager.resourcemanager.connect.retry-interval.ms";
/**
* Node-labels configurations
*/

39
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/RMProxy.java
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@ -88,7 +88,32 @@ protected static <T> T createRMProxy(final Configuration configuration,
YarnConfiguration conf = (configuration instanceof YarnConfiguration)
? (YarnConfiguration) configuration
: new YarnConfiguration(configuration);
RetryPolicy retryPolicy = createRetryPolicy(conf);
RetryPolicy retryPolicy =
createRetryPolicy(conf);
return createRMProxy(conf, protocol, instance, retryPolicy);
}
/**
* Create a proxy for the specified protocol. For non-HA,
* this is a direct connection to the ResourceManager address. When HA is
* enabled, the proxy handles the failover between the ResourceManagers as
* well.
*/
@Private
protected static <T> T createRMProxy(final Configuration configuration,
final Class<T> protocol, RMProxy instance, final long retryTime,
final long retryInterval) throws IOException {
YarnConfiguration conf = (configuration instanceof YarnConfiguration)
? (YarnConfiguration) configuration
: new YarnConfiguration(configuration);
RetryPolicy retryPolicy =
createRetryPolicy(conf, retryTime, retryInterval);
return createRMProxy(conf, protocol, instance, retryPolicy);
}
private static <T> T createRMProxy(final YarnConfiguration conf,
final Class<T> protocol, RMProxy instance, RetryPolicy retryPolicy)
throws IOException{
if (HAUtil.isHAEnabled(conf)) {
RMFailoverProxyProvider<T> provider =
instance.createRMFailoverProxyProvider(conf, protocol);
@ -179,6 +204,18 @@ public static RetryPolicy createRetryPolicy(Configuration conf) {
YarnConfiguration.RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
YarnConfiguration
.DEFAULT_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS);
return createRetryPolicy(
conf, rmConnectWaitMS, rmConnectionRetryIntervalMS);
}
/**
* Fetch retry policy from Configuration and create the
* retry policy with specified retryTime and retry interval.
*/
private static RetryPolicy createRetryPolicy(Configuration conf,
long retryTime, long retryInterval) {
long rmConnectWaitMS = retryTime;
long rmConnectionRetryIntervalMS = retryInterval;
boolean waitForEver = (rmConnectWaitMS == -1);
if (!waitForEver) {

20
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
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@ -1549,6 +1549,26 @@
<value>10000</value>
</property>
<property>
<description>
Max time to wait for NM to connect to RM.
When not set, proxy will fall back to use value of
yarn.resourcemanager.connect.max-wait.ms.
</description>
<name>yarn.nodemanager.resourcemanager.connect.max-wait.ms</name>
<value></value>
</property>
<property>
<description>
Time interval between each NM attempt to connect to RM.
When not set, proxy will fall back to use value of
yarn.resourcemanager.connect.retry-interval.ms.
</description>
<name>yarn.nodemanager.resourcemanager.connect.retry-interval.ms</name>
<value></value>
</property>
<property>
<description>
Maximum number of proxy connections to cache for node managers. If set

22
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/ServerRMProxy.java
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@ -48,8 +48,26 @@ private ServerRMProxy() {
*/
public static <T> T createRMProxy(final Configuration configuration,
final Class<T> protocol) throws IOException {
return createRMProxy(configuration, protocol, INSTANCE);
}
long rmConnectWait =
configuration.getLong(
YarnConfiguration.RESOURCEMANAGER_CONNECT_MAX_WAIT_MS,
YarnConfiguration.DEFAULT_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS);
long rmRetryInterval =
configuration.getLong(
YarnConfiguration.RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
YarnConfiguration
.DEFAULT_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS);
long nmRmConnectWait =
configuration.getLong(
YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS,
rmConnectWait);
long nmRmRetryInterval =
configuration.getLong(
YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
rmRetryInterval);
return createRMProxy(configuration, protocol, INSTANCE,
nmRmConnectWait, nmRmRetryInterval);
}
@InterfaceAudience.Private
@Override

83
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestNodeStatusUpdater.java
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@ -95,6 +95,7 @@
import org.apache.hadoop.yarn.server.api.records.NodeAction;
import org.apache.hadoop.yarn.server.api.records.NodeStatus;
import org.apache.hadoop.yarn.server.api.records.impl.pb.MasterKeyPBImpl;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.yarn.server.nodemanager.NodeManager.NMContext;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
@ -486,6 +487,35 @@ protected void stopRMProxy() {
}
}
private class MyNodeStatusUpdater6 extends NodeStatusUpdaterImpl {
private final long rmStartIntervalMS;
private final boolean rmNeverStart;
public ResourceTracker resourceTracker;
public MyNodeStatusUpdater6(Context context, Dispatcher dispatcher,
NodeHealthCheckerService healthChecker, NodeManagerMetrics metrics,
long rmStartIntervalMS, boolean rmNeverStart) {
super(context, dispatcher, healthChecker, metrics);
this.rmStartIntervalMS = rmStartIntervalMS;
this.rmNeverStart = rmNeverStart;
}
@Override
protected void serviceStart() throws Exception {
//record the startup time
super.serviceStart();
}
private boolean isTriggered() {
return triggered;
}
@Override
protected void stopRMProxy() {
return;
}
}
private class MyNodeManager extends NodeManager {
private MyNodeStatusUpdater3 nodeStatusUpdater;
@ -1309,6 +1339,59 @@ protected NodeStatusUpdater createUpdater(Context context,
+ "Message from ResourceManager: RM Shutting Down Node");
}
@Test (timeout = 100000)
public void testNMRMConnectionConf() throws Exception {
final long delta = 50000;
final long nmRmConnectionWaitMs = 100;
final long nmRmRetryInterval = 100;
final long connectionWaitMs = -1;
final long connectionRetryIntervalMs = 1000;
//Waiting for rmStartIntervalMS, RM will be started
final long rmStartIntervalMS = 2*1000;
conf.setLong(YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS,
nmRmConnectionWaitMs);
conf.setLong(
YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
nmRmRetryInterval);
conf.setLong(YarnConfiguration.RESOURCEMANAGER_CONNECT_MAX_WAIT_MS,
connectionWaitMs);
conf.setLong(YarnConfiguration.RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
connectionRetryIntervalMs);
conf.setInt(CommonConfigurationKeysPublic.IPC_CLIENT_CONNECT_MAX_RETRIES_KEY,
1);
//Test NM try to connect to RM Several times, but finally fail
NodeManagerWithCustomNodeStatusUpdater nmWithUpdater;
nm = nmWithUpdater = new NodeManagerWithCustomNodeStatusUpdater() {
@Override
protected NodeStatusUpdater createUpdater(Context context,
Dispatcher dispatcher, NodeHealthCheckerService healthChecker) {
NodeStatusUpdater nodeStatusUpdater = new MyNodeStatusUpdater6(
context, dispatcher, healthChecker, metrics,
rmStartIntervalMS, true);
return nodeStatusUpdater;
}
};
nm.init(conf);
long waitStartTime = System.currentTimeMillis();
try {
nm.start();
Assert.fail("NM should have failed to start due to RM connect failure");
} catch(Exception e) {
long t = System.currentTimeMillis();
long duration = t - waitStartTime;
boolean waitTimeValid = (duration >= nmRmConnectionWaitMs) &&
(duration < (connectionWaitMs + delta));
if(!waitTimeValid) {
// throw exception if NM doesn't retry long enough
throw new Exception("NM should have tried re-connecting to RM during " +
"period of at least " + connectionWaitMs + " ms, but " +
"stopped retrying within " + (connectionWaitMs + delta) +
" ms: " + e, e);
}
}
}
@Test (timeout = 150000)
public void testNMConnectionToRM() throws Exception {
final long delta = 50000;