/// <summary>test without TASK_LOG_DIR</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void TestTaskLogWithoutTaskLogDir()
{
// TaskLog tasklog= new TaskLog();
Runtime.ClearProperty(YarnConfiguration.YarnAppContainerLogDir);
// test TaskLog
NUnit.Framework.Assert.AreEqual(TaskLog.GetMRv2LogDir(), null);
TaskAttemptID taid = Org.Mockito.Mockito.Mock <TaskAttemptID>();
JobID jid = new JobID("job", 1);
Org.Mockito.Mockito.When(((JobID)taid.GetJobID())).ThenReturn(jid);
Org.Mockito.Mockito.When(taid.ToString()).ThenReturn("JobId");
FilePath f = TaskLog.GetTaskLogFile(taid, true, TaskLog.LogName.Stdout);
NUnit.Framework.Assert.IsTrue(f.GetAbsolutePath().EndsWith("stdout"));
}
//taskId should be managed as String rather than TaskID object
//so that log4j can configure it from the configuration(log4j.properties).
// System properties passed in from JVM runner
public override void ActivateOptions()
{
lock (this)
{
SetOptionsFromSystemProperties();
if (maxEvents > 0)
{
tail = new List <LoggingEvent>();
}
SetFile(TaskLog.GetTaskLogFile(((TaskAttemptID)TaskAttemptID.ForName(taskId)), isCleanup
, TaskLog.LogName.Syslog).ToString());
SetAppend(true);
base.ActivateOptions();
}
}
/// <summary>test TaskAttemptID</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void TestTaskLog()
{
// test TaskLog
Runtime.SetProperty(YarnConfiguration.YarnAppContainerLogDir, "testString");
NUnit.Framework.Assert.AreEqual(TaskLog.GetMRv2LogDir(), "testString");
TaskAttemptID taid = Org.Mockito.Mockito.Mock <TaskAttemptID>();
JobID jid = new JobID("job", 1);
Org.Mockito.Mockito.When(((JobID)taid.GetJobID())).ThenReturn(jid);
Org.Mockito.Mockito.When(taid.ToString()).ThenReturn("JobId");
FilePath f = TaskLog.GetTaskLogFile(taid, true, TaskLog.LogName.Stdout);
NUnit.Framework.Assert.IsTrue(f.GetAbsolutePath().EndsWith("testString" + FilePath
.separatorChar + "stdout"));
// test getRealTaskLogFileLocation
FilePath indexFile = TaskLog.GetIndexFile(taid, true);
if (!indexFile.GetParentFile().Exists())
{
indexFile.GetParentFile().Mkdirs();
}
indexFile.Delete();
indexFile.CreateNewFile();
TaskLog.SyncLogs("location", taid, true);
NUnit.Framework.Assert.IsTrue(indexFile.GetAbsolutePath().EndsWith("userlogs" + FilePath
.separatorChar + "job_job_0001" + FilePath.separatorChar + "JobId.cleanup" + FilePath
.separatorChar + "log.index"));
f = TaskLog.GetRealTaskLogFileLocation(taid, true, TaskLog.LogName.Debugout);
if (f != null)
{
NUnit.Framework.Assert.IsTrue(f.GetAbsolutePath().EndsWith("location" + FilePath.
separatorChar + "debugout"));
FileUtils.CopyFile(indexFile, f);
}
// test obtainLogDirOwner
NUnit.Framework.Assert.IsTrue(TaskLog.ObtainLogDirOwner(taid).Length > 0);
// test TaskLog.Reader
NUnit.Framework.Assert.IsTrue(ReadTaskLog(TaskLog.LogName.Debugout, taid, true).Length
> 0);
}
public void Run()
{
TaskLog.SyncLogs();
}
public void Run()
{
TaskLog.SyncLogsShutdown(scheduler);
}
/// <exception cref="System.Exception"/>
public static void Main(string[] args)
{
Sharpen.Thread.SetDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler
());
Log.Debug("Child starting");
JobConf job = new JobConf(MRJobConfig.JobConfFile);
// Initing with our JobConf allows us to avoid loading confs twice
Limits.Init(job);
UserGroupInformation.SetConfiguration(job);
string host = args[0];
int port = System.Convert.ToInt32(args[1]);
IPEndPoint address = NetUtils.CreateSocketAddrForHost(host, port);
TaskAttemptID firstTaskid = ((TaskAttemptID)TaskAttemptID.ForName(args[2]));
long jvmIdLong = long.Parse(args[3]);
JVMId jvmId = new JVMId(((JobID)firstTaskid.GetJobID()), firstTaskid.GetTaskType(
) == TaskType.Map, jvmIdLong);
// initialize metrics
DefaultMetricsSystem.Initialize(StringUtils.Camelize(firstTaskid.GetTaskType().ToString
()) + "Task");
// Security framework already loaded the tokens into current ugi
Credentials credentials = UserGroupInformation.GetCurrentUser().GetCredentials();
Log.Info("Executing with tokens:");
foreach (Org.Apache.Hadoop.Security.Token.Token <object> token in credentials.GetAllTokens
())
{
Log.Info(token);
}
// Create TaskUmbilicalProtocol as actual task owner.
UserGroupInformation taskOwner = UserGroupInformation.CreateRemoteUser(((JobID)firstTaskid
.GetJobID()).ToString());
Org.Apache.Hadoop.Security.Token.Token <JobTokenIdentifier> jt = TokenCache.GetJobToken
(credentials);
SecurityUtil.SetTokenService(jt, address);
taskOwner.AddToken(jt);
TaskUmbilicalProtocol umbilical = taskOwner.DoAs(new _PrivilegedExceptionAction_108
(address, job));
// report non-pid to application master
JvmContext context = new JvmContext(jvmId, "-1000");
Log.Debug("PID: " + Sharpen.Runtime.GetEnv()["JVM_PID"]);
Task task = null;
UserGroupInformation childUGI = null;
ScheduledExecutorService logSyncer = null;
try
{
int idleLoopCount = 0;
JvmTask myTask = null;
// poll for new task
for (int idle = 0; null == myTask; ++idle)
{
long sleepTimeMilliSecs = Math.Min(idle * 500, 1500);
Log.Info("Sleeping for " + sleepTimeMilliSecs + "ms before retrying again. Got null now."
);
TimeUnit.Milliseconds.Sleep(sleepTimeMilliSecs);
myTask = umbilical.GetTask(context);
}
if (myTask.ShouldDie())
{
return;
}
task = myTask.GetTask();
YarnChild.taskid = task.GetTaskID();
// Create the job-conf and set credentials
ConfigureTask(job, task, credentials, jt);
// Initiate Java VM metrics
JvmMetrics.InitSingleton(jvmId.ToString(), job.GetSessionId());
childUGI = UserGroupInformation.CreateRemoteUser(Runtime.Getenv(ApplicationConstants.Environment
.User.ToString()));
// Add tokens to new user so that it may execute its task correctly.
childUGI.AddCredentials(credentials);
// set job classloader if configured before invoking the task
MRApps.SetJobClassLoader(job);
logSyncer = TaskLog.CreateLogSyncer();
// Create a final reference to the task for the doAs block
Task taskFinal = task;
childUGI.DoAs(new _PrivilegedExceptionAction_158(taskFinal, job, umbilical));
}
catch (FSError e)
{
// use job-specified working directory
// run the task
Log.Fatal("FSError from child", e);
if (!ShutdownHookManager.Get().IsShutdownInProgress())
{
umbilical.FsError(taskid, e.Message);
}
}
catch (Exception exception)
{
Log.Warn("Exception running child : " + StringUtils.StringifyException(exception)
);
try
{
if (task != null)
{
// do cleanup for the task
if (childUGI == null)
{
// no need to job into doAs block
task.TaskCleanup(umbilical);
}
else
{
Task taskFinal = task;
childUGI.DoAs(new _PrivilegedExceptionAction_183(taskFinal, umbilical));
}
}
}
catch (Exception e)
{
Log.Info("Exception cleaning up: " + StringUtils.StringifyException(e));
}
// Report back any failures, for diagnostic purposes
if (taskid != null)
{
if (!ShutdownHookManager.Get().IsShutdownInProgress())
{
umbilical.FatalError(taskid, StringUtils.StringifyException(exception));
}
}
}
catch (Exception throwable)
{
Log.Fatal("Error running child : " + StringUtils.StringifyException(throwable));
if (taskid != null)
{
if (!ShutdownHookManager.Get().IsShutdownInProgress())
{
Exception tCause = throwable.InnerException;
string cause = tCause == null ? throwable.Message : StringUtils.StringifyException
(tCause);
umbilical.FatalError(taskid, cause);
}
}
}
finally
{
RPC.StopProxy(umbilical);
DefaultMetricsSystem.Shutdown();
TaskLog.SyncLogsShutdown(logSyncer);
}
}
