Package uk.ac.manchester.spinnaker.nmpi.model.job

Interface JobManagerInterface

All Known Implementing Classes:

JobManager

@Path("job")
public interface JobManagerInterface

JAX-RS interface to a Job for the purposes of management.

Field Summary

Fields

Modifier and Type	Field	Description
static String	APPLICATION_JSON	The media type for JSON.
static String	APPLICATION_OCTET_STREAM	The media type for Binary data.
static String	APPLICATION_ZIP	The media type of ZIP files.
static String	JOB_PROCESS_MANAGER	The name of the file we like to serve up when giving people a remote process manager.
static String	PATH	The path to the interface.
static String	SETUP_SCRIPT	The name of the setup script.
static String	TEXT_PLAIN	The media type for text.

Method Summary

Modifier and Type	Method	Description
void	addOutput(String projectId, int id, String output, InputStream input)	Add to the output files of a job.
void	addProvenance(int id, List<String> path, String value)	Add to the provenance of a job.
void	appendLog(int id, String logToAppend)	Add to the log of a job.
JobMachineAllocated	checkMachineLease(int id, int waitTime)	Check if the job is still allocated to a machine.
void	extendJobMachineLease(int id, double runTime)	Extend the lease of the job.
ChipCoordinates	getChipCoordinates(int id, String machineName, int chipX, int chipY)	Get a description of where a chip actually is.
SpinnakerMachine	getJobMachine(int id, int nCores, int nChips, int nBoards, double runTime)	Get a machine for running a job.
Response	getJobProcessManager()	Get the implementation code of the Job Process Manager.
SpinnakerMachine	getLargestJobMachine(int id, double runTime)	Get the largest machine that could run a job.
Job	getNextJob(String executerId)	Get the job manager to find out what its next job will be.
Response	getSetupScript()	Get the setup script to be executed.
void	releaseMachine(int id, String machineName)	Drop the allocation of a machine to a job.
void	setJobError(String projectId, int id, String error, String logToAppend, String baseFilename, List<String> outputs, RemoteStackTrace stackTrace)	Mark the job as finished with an error.
void	setJobFinished(String projectId, int id, String logToAppend, String baseFilename, List<String> outputs)	Mark the job as successfully finished.
void	setMachinePower(int id, String machineName, boolean powerOn)	Set the power status of a job's machine.

Field Details

PATH

static final String PATH

The path to the interface.

See Also:

Constant Field Values

APPLICATION_ZIP

static final String APPLICATION_ZIP

The media type of ZIP files.

See Also:

Constant Field Values

APPLICATION_JSON

static final String APPLICATION_JSON

The media type for JSON.

See Also:

Constant Field Values

APPLICATION_OCTET_STREAM

static final String APPLICATION_OCTET_STREAM

The media type for Binary data.

See Also:

Constant Field Values

TEXT_PLAIN

static final String TEXT_PLAIN

The media type for text.

See Also:

Constant Field Values

JOB_PROCESS_MANAGER

static final String JOB_PROCESS_MANAGER

The name of the file we like to serve up when giving people a remote process manager.

See Also:

Constant Field Values

SETUP_SCRIPT

static final String SETUP_SCRIPT

The name of the setup script.

See Also:

Constant Field Values

Method Details

getNextJob

@GET @Path("next") @Produces("application/json") Job getNextJob(@QueryParam("executerId") String executerId)

Get the job manager to find out what its next job will be.

Parameters:

executerId - The executor to talk about.

Returns:

The job discovered.

getLargestJobMachine

@GET @Path("{id}/machine/max") @Produces("application/json") SpinnakerMachine getLargestJobMachine(@PathParam("id") int id, @QueryParam("runTime") @DefaultValue("-1") double runTime)

Get the largest machine that could run a job.

Parameters:

id - The job ID.

runTime - How much resource to allocate. Can be omitted, in which case it is set to -1.

Returns:

The machine descriptor.

getJobMachine

@GET @Path("{id}/machine") @Produces("application/json") SpinnakerMachine getJobMachine(@PathParam("id") int id, @QueryParam("nCores") @DefaultValue("-1") int nCores, @QueryParam("nChips") @DefaultValue("-1") int nChips, @QueryParam("nBoards") @DefaultValue("-1") int nBoards, @QueryParam("runTime") @DefaultValue("-1") double runTime)

Get a machine for running a job. Typically, only one of nCores, nChips and nBoards will be specified.

Parameters:

id - The job ID.

nCores - The number of cores wanted. Can be omitted, in which case it is set to -1.

nChips - The number of chips wanted. Can be omitted, in which case it is set to -1.

nBoards - The number of boards wanted. Can be omitted, in which case it is set to -1.

runTime - How much resource to allocate. Can be omitted, in which case it is set to -1.

Returns:

The machine descriptor.

checkMachineLease

@GET @Path("{id}/machine/checkLease") @Produces("application/json") JobMachineAllocated checkMachineLease(@PathParam("id") int id, @QueryParam("waitTime") @DefaultValue("10000") int waitTime)

Check if the job is still allocated to a machine.

Parameters:

id - The job ID

waitTime - How long should the lease time be. Can be omitted, in which case it is set to 1000.

Returns:

Whether the job is allocated.

extendJobMachineLease

@GET @Path("{id}/machine/extendLease") void extendJobMachineLease(@PathParam("id") int id, @QueryParam("runTime") @DefaultValue("-1") double runTime)

Extend the lease of the job.

Parameters:

id - The job ID

runTime - How long has the job actually run. Can be omitted, in which case it is set to -1.

releaseMachine

@DELETE @Path("{id}/machine") void releaseMachine(@PathParam("id") int id, @QueryParam("machineName") String machineName)

Drop the allocation of a machine to a job.

Parameters:

id - The job ID

machineName - The name of the machine to stop using.

setMachinePower

@PUT @Path("{id}/machine/power") void setMachinePower(@PathParam("id") int id, @QueryParam("machineName") String machineName, @QueryParam("on") boolean powerOn)

Set the power status of a job's machine.

Parameters:

id - The job ID

machineName - The name of the machine to control the power of.

powerOn - True of the machine is to be switched on; false to switch it off.

getChipCoordinates

@GET @Path("{id}/machine/chipCoordinates") @Produces("application/json") ChipCoordinates getChipCoordinates(@PathParam("id") int id, @QueryParam("machineName") String machineName, @QueryParam("chipX") int chipX, @QueryParam("chipY") int chipY)

Get a description of where a chip actually is.

Parameters:

id - The job ID

machineName - The name of the machine to control the power of.

chipX - The virtual X coordinate of the chip.

chipY - The virtual Y coordinate of the chip.

Returns:

The coordinates of the chip

appendLog

@POST @Path("{id}/log") @Consumes("text/plain") void appendLog(@PathParam("id") int id, String logToAppend)

Add to the log of a job.

Parameters:

id - The job ID

logToAppend - The string to append to the log.

addProvenance

@POST @Path("{id}/provenance") void addProvenance(@PathParam("id") int id, @QueryParam("name") List<String> path, @QueryParam("value") String value)

Add to the provenance of a job.

Parameters:

id - The job ID

path - The path into the JSON provenance doc.

value - The value to set at that point.

addOutput

@POST @Path("{projectId}/{id}/addoutput") @Consumes("application/octet-stream") void addOutput(@PathParam("projectId") String projectId, @PathParam("id") int id, @QueryParam("outputFilename") String output, InputStream input)

Add to the output files of a job.

Parameters:

projectId - The ID of the project owning the job.

id - The job ID

output - The name of the file to write to.

input - The contents of the file, streamed.

setJobFinished

@POST @Path("{projectId}/{id}/finished") @Consumes("text/plain") void setJobFinished(@PathParam("projectId") String projectId, @PathParam("id") int id, String logToAppend, @QueryParam("baseFilename") String baseFilename, @QueryParam("outputFilename") List<String> outputs)

Mark the job as successfully finished.

Parameters:

projectId - The ID of the project owning the job.

id - The id of the job.

logToAppend - The job log data.

baseFilename - The base of filenames.

outputs - The list of output files.

setJobError

@POST @Path("{projectId}/{id}/error") @Consumes("application/json") void setJobError(@PathParam("projectId") String projectId, @PathParam("id") int id, @QueryParam("error") String error, @QueryParam("logToAppend") String logToAppend, @QueryParam("baseFilename") String baseFilename, @QueryParam("outputFilename") List<String> outputs, RemoteStackTrace stackTrace)

Mark the job as finished with an error.

Parameters:

projectId - The project owning the job.

id - The id of the job.

error - The error message.

logToAppend - The job log data.

baseFilename - The base of filenames.

outputs - The list of output files.

stackTrace - The stack trace of the exception that caused the error.

getJobProcessManager

@GET @Path("SpiNNaker-nmpiexec.jar") @Produces("application/octet-stream") Response getJobProcessManager()

Get the implementation code of the Job Process Manager.

Returns:

a response containing the ZIP file.

getSetupScript

@GET @Path("setup.bash") @Produces("application/octet-stream") Response getSetupScript() throws IOException

Get the setup script to be executed.

Returns:

a response containing the setup script

Throws:

IOException - if something goes wrong