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Get Job Environment Variables

Gets the values of the specified environment variables for the job, or the values of all of the environment variables if none are specified.

Request

You can specify the Get Job Environment Variables request as follows.

MethodRequest URI
GEThttps://head_node_name:port/WindowsHPC/HPC_cluster_name/Job/job_identifier/EnvVariables

 

For instances of the REST web service that are hosted in Windows Azure, the head node name should have a format of Windows_Azure_service_name.cloudapp.net.

To get the name to use for an HPC cluster that runs at least Microsoft HPC Pack 2008 R2 with Service Pack 3 (SP3), use the Get Clusters operation.

URI Parameters

You can specify the following additional parameters on the request URI.

ParameterDescription
Names

Optional. A comma-separated list of the names for the environment variables in the job for which you want to get values.

If you do not specify the Names parameter, the response contains values for all of the environment variables for the job. If an environment variable with a specified name does not exist for the job, the response contains an empty string for the value of that environment variable.

api-version

Optional. Specifies the version of the operation to use for this request. To specify Microsoft HPC Pack 2008 R2 with Service Pack 3 (SP3), use a value of 2011-11-01. The minimum version that supports this URI parameter is Microsoft HPC Pack 2008 R2 with SP3.

The value of this URI parameter is ignored if the request also contains the api-version header.

 

Request Headers

The following table describes required and optional request headers.

Request HeaderDescription
api-version

Optional. Specifies the version of the operation to use for this request. To specify Microsoft HPC Pack 2008 R2 with SP3, use a value of 2011-11-01. The minimum version that supports this header is Microsoft HPC Pack 2008 R2 with SP3.

The value specified in this header overrides the value specified in the api-version URI parameter if both are specified.

CCP_Version

Optional. Specifies the version of the operation to use for this request.

Deprecated beginning with Microsoft HPC Pack 2008 R2 with Service Pack 3 (SP3).

 

Request Body

None.

Response

The response includes an HTTP status code, a set of response headers, and a response body in XML format.

Status Code

A successful operation returns status code 200 (OK). For more information about status codes, see HttpStatusCode.

The error response is dependent upon the api-version used in the request. If the api-version is not provided, or CCP_Version is specified, then the error response will be an XML string (Note: The error message will vary based on the error):


<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">Error message text.</string>

If the api-version is 2011-11-01 or later, the error message will be a more descriptive XML response (Note: Values will vary based on the error):


<HpcWebServiceFault xmlns="http://schemas.microsoft.com/HPCS2008R2/common" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <Code>267386880</Code>
  <Message>Error message text.</Message>
  <Values i:nil="true" xmlns:a="http://schemas.datacontract.org/2004/07/System.Collections.Generic"/>
</HpcWebServiceFault>

Response Headers

The response for this operation includes the following headers.

Response HeaderDescription
x-ms-hpc-authoritychain

A comma-separated list of RFC 1918 IP addresses that indicate the sequence of instances of the REST web service that the operation called in order from to right.

Only responses from instances of the REST web service that are hosted on Windows Azure contain this header. Responses from instances of the REST web service that are hosted on premise omit this header.

This header is supported beginning with Microsoft HPC Pack 2008 R2 with SP3 and is not available in previous versions.

 

The response for this operation also includes standard HTTP headers. All standard headers conform to the HTTP/1.1 protocol specification.

Response Body

The format of the response body is as follows.


<ArrayOfProperty xmlns="http://schemas.microsoft.com/HPCS2008R2/common" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    <Property>
        <Name>environment_variable_1_name</Name>
        <Value>value_1</Value>
    </Property>
    <Property>
        <Name>environment_variable_2_name</Name>
        <Value>value_2</Value>
    </Property>
    ...
</ArrayOfProperty>

The following table describes each of the elements in the response XML.

ElementDescription
ArrayOfProperty

Represents the set of environment variables for the job.

Property

Represents a single environment variable for the job.

Name

Contains the name of the environment variable.

Value

Contains the value of the environment variable.

 

Requirements

Product

HPC Pack 2008 R2 with at least SP2, or a later version of HPC Pack.

 

 

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