Package net.sf.basedb.opengrid.engine

Class OpenGridEngine

java.lang.Object

net.sf.basedb.opengrid.engine.OpenGridEngine

All Implemented Interfaces:

ClusterEngine

public class OpenGridEngine
extends Object
implements ClusterEngine

Cluster engine implementation for Open Grid clusters.

Since:

1.4

Author:

nicklas

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	OpenGridEngine.OpenGridJobStatus	Job status information for Open Grid jobs.
static class	OpenGridEngine.QacctCmd	Implements the 'qacct' command for getting information about a completed job.
static class	OpenGridEngine.QstatCmd	Get job status information from an existing QstatXmlCmd instance.
static class	OpenGridEngine.QstatXmlCmd	Execute the 'qstat -xml' command, parse the XML and store the result for future use with QstatCmd.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Set<String>	ignoredQsubOptions
private static final ExtensionsLogger	logger
private OpenGridEngine.QstatXmlCmd	qstatXml
static final DateFormatter	STARTTIME_DATE	Format to use for the -a parameter that contols the earliest start time for a job: YYMMDDhhmm.SS Example: 2204081145.51

Constructor Summary

Constructors

Constructor	Description
OpenGridEngine()

Method Summary

Modifier and Type	Method	Description
CmdResult<String>	cancelJob(OpenGridSession session, JobIdentifier jobId)	Tell the cluster that a running or waiting job should be cancelled.
String	createJobScript(JobDefinition job, String workFolder, String tmpFolder)	Generates a script that executes the job script.
JobSubmission	createJobSubmission(OpenGridSession session, JobDefinition job, String workFolder, String tmpFolder)	Create a job submission for executing a job on the cluster.
String	createQsubScript(JobDefinition job, String workFolder, String tmpFolder)	Generates a script that can be submitted with 'qsub' to the Open Grid Cluster.
private UploadSource	getScript(String name)
CmdResult<JobStatus>	getStatusIfFinished(OpenGridSession session, JobIdentifier jobId, int timeAdjustment)	Get information about a job that is expected to have finished.
CmdResult<JobStatus>	getStatusInQueue(OpenGridSession session, JobIdentifier jobId, int timeAdjustment)	Get information about a job that is expected to be waiting in the queue or running.
Collection<Signal>	getSupportedSignals(JobStatus newStatus, Job.Status currentStatus)	Get the signals that are supported for jobs with the given current and new job status.
void	setDefaultConfig(ClusterConfig config)	Set default configuration parameters on the given configuration object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.basedb.opengrid.engine.ClusterEngine

modifyJob

Field Details

logger

private static final ExtensionsLogger logger

ignoredQsubOptions

private static final Set<String> ignoredQsubOptions

STARTTIME_DATE

public static final DateFormatter STARTTIME_DATE

Format to use for the -a parameter that contols the earliest start time for a job: YYMMDDhhmm.SS Example: 2204081145.51

Since:

1.5

qstatXml

private OpenGridEngine.QstatXmlCmd qstatXml

Constructor Details

OpenGridEngine

public OpenGridEngine()

Method Details

getSupportedSignals

public Collection<Signal> getSupportedSignals(JobStatus newStatus,
 Job.Status currentStatus)

Description copied from interface: ClusterEngine

Get the signals that are supported for jobs with the given current and new job status. This method is typically only called for status: WAITING, PAUSED and EXECUTING. It is safe to return null or an empty collection if no signals are supported.

Specified by:

getSupportedSignals in interface ClusterEngine

setDefaultConfig

public void setDefaultConfig(ClusterConfig config)

Description copied from interface: ClusterEngine

Set default configuration parameters on the given configuration object. It is expected that the ClusterConfig.getType() is a type that is compatible with the engine implementation.

Specified by:

setDefaultConfig in interface ClusterEngine

createJobSubmission

public JobSubmission createJobSubmission(OpenGridSession session,
 JobDefinition job,
 String workFolder,
 String tmpFolder)

Description copied from interface: ClusterEngine

Create a job submission for executing a job on the cluster.

Specified by:

createJobSubmission in interface ClusterEngine

Parameters:

session - A connected session that can be used to execute commands on the cluster

job - Information about the job

workFolder - The work folder where files needed for the job are stored

tmpFolder - A temporary folder where the job is allowed to store files

Returns:

A JobSubmission instance

getStatusInQueue

public CmdResult<JobStatus> getStatusInQueue(OpenGridSession session,
 JobIdentifier jobId,
 int timeAdjustment)

Description copied from interface: ClusterEngine

Get information about a job that is expected to be waiting in the queue or running. If this is not the case, the CmdResult should return with exit status set to 1.

Specified by:

getStatusInQueue in interface ClusterEngine

Parameters:

session - A connected session that can be used to execute commands on the cluster

jobId - Job identifier

timeAdjustment - Adjustment in seconds that should be applied to all times returned by commands on the cluster (this will make times compatible with BASE server)

Returns:

A CmdResult instance with JobStatus information

getStatusIfFinished

public CmdResult<JobStatus> getStatusIfFinished(OpenGridSession session,
 JobIdentifier jobId,
 int timeAdjustment)

Description copied from interface: ClusterEngine

Get information about a job that is expected to have finished.

Specified by:

getStatusIfFinished in interface ClusterEngine

Parameters:

session - A connected session that can be used to execute commands on the cluster

jobId - Job identifier

timeAdjustment - Adjustment in seconds that should be applied to all times returned by commands on the cluster (this will make times compatible with BASE server)

Returns:

A CmdResult instance with JobStatus information

cancelJob

public CmdResult<String> cancelJob(OpenGridSession session,
 JobIdentifier jobId)

Description copied from interface: ClusterEngine

Tell the cluster that a running or waiting job should be cancelled.

Specified by:

cancelJob in interface ClusterEngine

Parameters:

session - A connected session that can be used to execute commands on the cluster

jobId - Job identifier

Returns:

The result of executing the command

createQsubScript

public String createQsubScript(JobDefinition job,
 String workFolder,
 String tmpFolder)

Generates a script that can be submitted with 'qsub' to the Open Grid Cluster.

createJobScript

public String createJobScript(JobDefinition job,
 String workFolder,
 String tmpFolder)

Generates a script that executes the job script.

getScript

private UploadSource getScript(String name)