public static void setClassLoaderAndJar(
JobConf conf, @SuppressWarnings("rawtypes") Class jobClass) {
conf.setClassLoader(Thread.currentThread().getContextClassLoader());
String jar =
KafkaETLUtils.findContainingJar(jobClass, Thread.currentThread().getContextClassLoader());
if (jar != null) {
conf.setJar(jar);
}
}
@SuppressWarnings("unchecked")
public static void main(String[] args) throws IOException, HiveException {
String planFileName = null;
String jobConfFileName = null;
boolean noLog = false;
String files = null;
boolean localtask = false;
try {
for (int i = 0; i < args.length; i++) {
if (args[i].equals("-plan")) {
planFileName = args[++i];
} else if (args[i].equals("-jobconffile")) {
jobConfFileName = args[++i];
} else if (args[i].equals("-nolog")) {
noLog = true;
} else if (args[i].equals("-files")) {
files = args[++i];
} else if (args[i].equals("-localtask")) {
localtask = true;
}
}
} catch (IndexOutOfBoundsException e) {
System.err.println("Missing argument to option");
printUsage();
}
JobConf conf;
if (localtask) {
conf = new JobConf(MapredLocalTask.class);
} else {
conf = new JobConf(ExecDriver.class);
}
if (jobConfFileName != null) {
conf.addResource(new Path(jobConfFileName));
}
if (files != null) {
conf.set("tmpfiles", files);
}
if (UserGroupInformation.isSecurityEnabled()) {
String hadoopAuthToken = System.getenv(UserGroupInformation.HADOOP_TOKEN_FILE_LOCATION);
if (hadoopAuthToken != null) {
conf.set("mapreduce.job.credentials.binary", hadoopAuthToken);
}
}
boolean isSilent = HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVESESSIONSILENT);
String queryId = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEQUERYID, "").trim();
if (queryId.isEmpty()) {
queryId = "unknown-" + System.currentTimeMillis();
}
System.setProperty(HiveConf.ConfVars.HIVEQUERYID.toString(), queryId);
if (noLog) {
// If started from main(), and noLog is on, we should not output
// any logs. To turn the log on, please set -Dtest.silent=false
org.apache.logging.log4j.Logger logger = org.apache.logging.log4j.LogManager.getRootLogger();
NullAppender appender = NullAppender.createNullAppender();
appender.addToLogger(logger.getName(), Level.ERROR);
appender.start();
} else {
setupChildLog4j(conf);
}
Logger LOG = LoggerFactory.getLogger(ExecDriver.class.getName());
LogHelper console = new LogHelper(LOG, isSilent);
if (planFileName == null) {
console.printError("Must specify Plan File Name");
printUsage();
}
// print out the location of the log file for the user so
// that it's easy to find reason for local mode execution failures
for (Appender appender :
((org.apache.logging.log4j.core.Logger) LogManager.getRootLogger())
.getAppenders()
.values()) {
if (appender instanceof FileAppender) {
console.printInfo("Execution log at: " + ((FileAppender) appender).getFileName());
} else if (appender instanceof RollingFileAppender) {
console.printInfo("Execution log at: " + ((RollingFileAppender) appender).getFileName());
}
}
// the plan file should always be in local directory
Path p = new Path(planFileName);
FileSystem fs = FileSystem.getLocal(conf);
InputStream pathData = fs.open(p);
// this is workaround for hadoop-17 - libjars are not added to classpath of the
// child process. so we add it here explicitly
String auxJars = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEAUXJARS);
String addedJars = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEADDEDJARS);
try {
// see also - code in CliDriver.java
ClassLoader loader = conf.getClassLoader();
if (StringUtils.isNotBlank(auxJars)) {
loader = Utilities.addToClassPath(loader, StringUtils.split(auxJars, ","));
}
if (StringUtils.isNotBlank(addedJars)) {
loader = Utilities.addToClassPath(loader, StringUtils.split(addedJars, ","));
}
conf.setClassLoader(loader);
// Also set this to the Thread ContextClassLoader, so new threads will
// inherit
// this class loader, and propagate into newly created Configurations by
// those
// new threads.
Thread.currentThread().setContextClassLoader(loader);
} catch (Exception e) {
throw new HiveException(e.getMessage(), e);
}
int ret;
if (localtask) {
memoryMXBean = ManagementFactory.getMemoryMXBean();
MapredLocalWork plan = Utilities.deserializePlan(pathData, MapredLocalWork.class, conf);
MapredLocalTask ed = new MapredLocalTask(plan, conf, isSilent);
ret = ed.executeInProcess(new DriverContext());
} else {
MapredWork plan = Utilities.deserializePlan(pathData, MapredWork.class, conf);
ExecDriver ed = new ExecDriver(plan, conf, isSilent);
ret = ed.execute(new DriverContext());
}
if (ret != 0) {
System.exit(ret);
}
}
@SuppressWarnings("rawtypes")
public void afterPropertiesSet() throws Exception {
final Configuration cfg = ConfigurationUtils.createFrom(configuration, properties);
buildGenericOptions(cfg);
if (StringUtils.hasText(user)) {
UserGroupInformation ugi =
UserGroupInformation.createProxyUser(user, UserGroupInformation.getLoginUser());
ugi.doAs(
new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
job = new Job(cfg);
return null;
}
});
} else {
job = new Job(cfg);
}
ClassLoader loader =
(beanClassLoader != null
? beanClassLoader
: org.springframework.util.ClassUtils.getDefaultClassLoader());
if (jar != null) {
JobConf conf = (JobConf) job.getConfiguration();
conf.setJar(jar.getURI().toString());
loader = ExecutionUtils.createParentLastClassLoader(jar, beanClassLoader, cfg);
conf.setClassLoader(loader);
}
// set first to enable auto-detection of K/V to skip the key/value types to be specified
if (mapper != null) {
Class<? extends Mapper> mapperClass = resolveClass(mapper, loader, Mapper.class);
job.setMapperClass(mapperClass);
configureMapperTypesIfPossible(job, mapperClass);
}
if (reducer != null) {
Class<? extends Reducer> reducerClass = resolveClass(reducer, loader, Reducer.class);
job.setReducerClass(reducerClass);
configureReducerTypesIfPossible(job, reducerClass);
}
if (StringUtils.hasText(name)) {
job.setJobName(name);
}
if (combiner != null) {
job.setCombinerClass(resolveClass(combiner, loader, Reducer.class));
}
if (groupingComparator != null) {
job.setGroupingComparatorClass(resolveClass(groupingComparator, loader, RawComparator.class));
}
if (inputFormat != null) {
job.setInputFormatClass(resolveClass(inputFormat, loader, InputFormat.class));
}
if (mapKey != null) {
job.setMapOutputKeyClass(resolveClass(mapKey, loader, Object.class));
}
if (mapValue != null) {
job.setMapOutputValueClass(resolveClass(mapValue, loader, Object.class));
}
if (numReduceTasks != null) {
job.setNumReduceTasks(numReduceTasks);
}
if (key != null) {
job.setOutputKeyClass(resolveClass(key, loader, Object.class));
}
if (value != null) {
job.setOutputValueClass(resolveClass(value, loader, Object.class));
}
if (outputFormat != null) {
job.setOutputFormatClass(resolveClass(outputFormat, loader, OutputFormat.class));
}
if (partitioner != null) {
job.setPartitionerClass(resolveClass(partitioner, loader, Partitioner.class));
}
if (sortComparator != null) {
job.setSortComparatorClass(resolveClass(sortComparator, loader, RawComparator.class));
}
if (StringUtils.hasText(workingDir)) {
job.setWorkingDirectory(new Path(workingDir));
}
if (jarClass != null) {
job.setJarByClass(jarClass);
}
if (!CollectionUtils.isEmpty(inputPaths)) {
for (String path : inputPaths) {
FileInputFormat.addInputPath(job, new Path(path));
}
}
if (StringUtils.hasText(outputPath)) {
FileOutputFormat.setOutputPath(job, new Path(outputPath));
}
if (compressOutput != null) {
FileOutputFormat.setCompressOutput(job, compressOutput);
}
if (codecClass != null) {
FileOutputFormat.setOutputCompressorClass(
job, resolveClass(codecClass, loader, CompressionCodec.class));
}
processJob(job);
}