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Posted to mapreduce-issues@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2009/10/25 08:03:59 UTC
[jira] Commented: (MAPREDUCE-1154) Large-scale, automated test
framwork for Map-Reduce
[ https://issues.apache.org/jira/browse/MAPREDUCE-1154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12769759#action_12769759 ]
Arun C Murthy commented on MAPREDUCE-1154:
------------------------------------------
Some Map-Reduce specific functionality to provide a flavour for the proposal:
{noformat}
/**
* Daemon/job artifacts.
*/
public enum Artifact {
LOGS,
OUTPUTS
}
/**
* Get tasktrackers on the given rack.
* @param cluster map-reduce <code>Cluster</code>
* @param rackId rack
* @return tasktrackers on the given rack
* @throws IOException
* @throws InterruptedException
*/
public static List<TaskTracker> getTaskTrackersOnRack(Cluster cluster,
String rackId)
throws IOException, InterruptedException;
/**
* Get tasks running on the given tasktracker.
* @param cluster map-reduce <code>Cluster</code>
* @param taskTracker task-tracker
* @return tasks running on the given tasktracker
* @throws IOException
* @throws InterruptedException
*/
public static List<TaskAttemptID>
getTasksRunningOnTaskTracker(Cluster cluster, TaskTracker taskTracker)
throws IOException, InterruptedException;
/**
* Get tasktracker on the given host.
* @param cluster map-reduce <code>Cluster</code>
* @param hostName host
* @return tasktracker on the given host
* @throws IOException
* @throws InterruptedException
*/
public static TaskTracker getTaskTracker(Cluster cluster, String hostName)
throws IOException, InterruptedException;
/**
* Get tasktrackers on which tasks of the given job executed.
* @param job map-reduce <code>Job</code>
* @param taskAttemptIDs optional list of task-attempts whose tasktrackers
* need to be fetched
* @return tasktrackers on which tasks of the given job executed, optionally
* for a specific set of task-attempts
* @throws IOException
* @throws InterruptedException
*/
public static List<TaskTracker>
getTaskTrackersForJob(Job job, TaskAttemptID ... taskAttemptIDs)
throws IOException, InterruptedException;
/**
* Fetch artifacts of a given job (optionally a specific set of task-attempts of
* the job).
* @param job job whose logs are to be fetched
* @param type artifact type
* @param dir directory to place the fetched logs
* @param taskAttemptIDs optional list of task-attempts of the job
* @throws IOException
*/
public static void fetchJobArtifacts(Job job,
Artifact type, Path dir,
TaskAttemptID ... taskAttemptIDs)
throws IOException;
/**
* Fetch job artifacts and check if they have the <code>pattern</code>.
* @param job map-reduce job
* @param pattern pattern to check
* @param fetch if <code>true</code> fetch the artifacts into
* <code>dir</code>, else do not fetch
* @param dir directory to place the fetched outputs
* @param taskAttempts optional tasks of the job
* @return <code>true</code> if the artifacts contain <code>pattern</code>,
* <code>false</code> otherwise
* @throws IOException
*/
public static boolean checkJobArtifacts(Job job,
Artifact type, String pattern,
boolean fetch, Path dir,
TaskAttemptID... taskAttempts)
throws IOException;
/**
* Kill the given task-tracker
* @param cluster map-reduce <code>Cluster</code>
* @param taskTracker <code>TaskTracker</code> to be killed
* @throws IOException
* @throws InterruptedException
*/
public static void killTaskTracker(Cluster cluster, TaskTracker taskTracker)
throws IOException, InterruptedException;
/**
* Kill a given task-attempt running on the given tasktracker
* @param cluster map-reduce <code>Cluster</code>
* @param taskTracker <code>TaskTracker</code> on which the task is running
* @param taskAttemptId task-attempt to be killed
* @throws IOException
* @throws InterruptedException
*/
public static void killTask(Cluster cluster, TaskTracker taskTracker,
TaskAttemptID taskAttemptId)
throws IOException, InterruptedException;
{noformat}
> Large-scale, automated test framwork for Map-Reduce
> ---------------------------------------------------
>
> Key: MAPREDUCE-1154
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1154
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: test
> Reporter: Arun C Murthy
> Fix For: 0.21.0
>
>
> HADOOP-6332 proposes a large-scale, automated, junit-based test-framework for Hadoop.
> This jira is meant to track relevant work to Map-Reduce.
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