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[DISCUSS][WIP]TEZ-4665: [Cloud] Unmanaged task containers - task container discovery #473

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[DISCUSS][WIP]TEZ-4665: [Cloud] Unmanaged task containers - task container discovery #473

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97 changes: 75 additions & 22 deletions tez-runtime-internals/src/main/java/org/apache/tez/runtime/task/TezChild.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@

package org.apache.tez.runtime.task;


import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.URI;
Expand All @@ -33,13 +34,15 @@
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;

import javax.annotation.Nullable;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ipc.CallerContext;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.net.NetUtils;
Expand All @@ -51,6 +54,8 @@
import org.apache.hadoop.yarn.api.ApplicationConstants;
import org.apache.hadoop.yarn.api.ApplicationConstants.Environment;
import org.apache.log4j.helpers.ThreadLocalMap;
import org.apache.tez.client.registry.AMRecord;
import org.apache.tez.client.registry.zookeeper.ZkAMRegistryClient;
import org.apache.tez.common.ContainerContext;
import org.apache.tez.common.ContainerTask;
import org.apache.tez.common.Preconditions;
Expand All @@ -64,6 +69,7 @@
import org.apache.tez.common.TezUtilsInternal;
import org.apache.tez.common.counters.Limits;
import org.apache.tez.common.security.JobTokenIdentifier;
import org.apache.tez.common.security.JobTokenSecretManager;
import org.apache.tez.common.security.TokenCache;
import org.apache.tez.dag.api.TezConfiguration;
import org.apache.tez.dag.api.TezException;
Expand Down Expand Up @@ -517,45 +523,92 @@ public static TezChild newTezChild(Configuration conf, String host, int port, St
hadoopShim);
}

public static void main(String[] args) throws IOException, InterruptedException, TezException {
public static void main(String[] args) throws Exception {
TezClassLoader.setupTezClassLoader();
final Configuration defaultConf = new Configuration();

String frameworkMode = System.getenv("TEZ_FRAMEWORK_MODE");
if (frameworkMode == null || frameworkMode.isEmpty()) {
frameworkMode = defaultConf.get("tez.framework.mode", "YARN");
}

String host, appId, tokenIdentifier, containerIdentifier;
int port, attemptNumber;
Credentials credentials = new Credentials();

if ("STANDALONE_ZOOKEEPER".equalsIgnoreCase(frameworkMode)) {
DAGProtos.ConfigurationProto confProtoBefore = TezUtilsInternal.loadConfProtoFromText();
TezUtilsInternal.addUserSpecifiedTezConfiguration(
defaultConf, confProtoBefore.getConfKeyValuesList());

ZkAMRegistryClient registry = ZkAMRegistryClient.getClient(defaultConf);
registry.start();

while (!registry.isInitialized()) {
TimeUnit.SECONDS.sleep(5);
}

List<AMRecord> records = registry.getAllRecords();
if (records.isEmpty()) {
throw new RuntimeException("No AM found in ZooKeeper registry");
}
AMRecord amRecord = records.getFirst();

host = amRecord.getHostName();
port = amRecord.getPort();
appId = amRecord.getApplicationId().toString();
tokenIdentifier = appId;
attemptNumber = 1;
containerIdentifier = "container_" + appId + "_01_000001";

// FIX: Dummy token
JobTokenIdentifier identifier = new JobTokenIdentifier(new Text(appId));
Token<JobTokenIdentifier> sessionToken =
new Token<>(identifier, new JobTokenSecretManager(defaultConf));
credentials.addToken(new Text("SessionToken"), sessionToken);

LOG.info("ZK Mode: Discovered AM {} at {}:{}", appId, host, port);

} else {
assert args.length == 5;
host = args[0];
port = Integer.parseInt(args[1]);
containerIdentifier = args[2];
tokenIdentifier = args[3];
attemptNumber = Integer.parseInt(args[4]);

DAGProtos.ConfigurationProto confProto =
TezUtilsInternal.readUserSpecifiedTezConfiguration(System.getenv(Environment.PWD.name()));
TezUtilsInternal.addUserSpecifiedTezConfiguration(
defaultConf, confProto.getConfKeyValuesList());
}
Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
final String pid = System.getenv().get("JVM_PID");
String[] localDirs =
TezCommonUtils.getTrimmedStrings(System.getenv(Environment.LOCAL_DIRS.name()));


assert args.length == 5;
String host = args[0];
int port = Integer.parseInt(args[1]);
final String containerIdentifier = args[2];
final String tokenIdentifier = args[3];
final int attemptNumber = Integer.parseInt(args[4]);
final String[] localDirs = TezCommonUtils.getTrimmedStrings(System.getenv(Environment.LOCAL_DIRS
.name()));
CallerContext.setCurrent(new CallerContext.Builder("tez_"+tokenIdentifier).build());
LOG.info("TezChild starting with PID=" + pid + ", containerIdentifier=" + containerIdentifier);
CallerContext.setCurrent(new CallerContext.Builder("tez_" + tokenIdentifier).build());
LOG.info("TezChild starting with PID={}, containerIdentifier={}", pid, containerIdentifier);
if (LOG.isDebugEnabled()) {
LOG.debug("Info from cmd line: AM-host: " + host + " AM-port: " + port
+ " containerIdentifier: " + containerIdentifier + " appAttemptNumber: " + attemptNumber
+ " tokenIdentifier: " + tokenIdentifier);
LOG.debug(
"Info from cmd line: AM-host: {} AM-port: {} containerIdentifier: {} appAttemptNumber: {} tokenIdentifier: {}",
host,
port,
containerIdentifier,
attemptNumber,
tokenIdentifier);
credentials = UserGroupInformation.getCurrentUser().getCredentials();
}

// Security framework already loaded the tokens into current ugi
DAGProtos.ConfigurationProto confProto =
TezUtilsInternal.readUserSpecifiedTezConfiguration(System.getenv(Environment.PWD.name()));
TezUtilsInternal.addUserSpecifiedTezConfiguration(defaultConf, confProto.getConfKeyValuesList());
UserGroupInformation.setConfiguration(defaultConf);
Credentials credentials = UserGroupInformation.getCurrentUser().getCredentials();

HadoopShim hadoopShim = new HadoopShimsLoader(defaultConf).getHadoopShim();

// log the system properties
if (LOG.isInfoEnabled()) {
String systemPropsToLog = TezCommonUtils.getSystemPropertiesToLog(defaultConf);
if (systemPropsToLog != null) {
LOG.info(systemPropsToLog);
}
LOG.info(systemPropsToLog);
}

TezChild tezChild = newTezChild(defaultConf, host, port, containerIdentifier,
Expand Down