Overriding Job Files

When you run a job at the command line using job executor or the Administration Utility, you can override the input file specified in the flow's source stage (such as Read from File), as well as the output file specified in the flow's sink stage (such as Write to File).

To do this in job executor, specify this command at the end of the job executor command:

StageName=Protocol:FileName

In the Administration Utility, use the --l argument in the job execute command:

--l StageName=Protocol:FileName

Where:

StageName

The stage label shown under the stage's icon in the flow in Spectrum Enterprise Designer. For example, if the stage is labeled "Read from File" you would specify Read from File for the stage name.

To specify a stage within an embedded flow or a subflow, preface the stage name with the name of the embedded flow or subflow, followed by a period then the stage name:

EmbeddedOrSubflowName.StageName

For example, to specify a stage named Write to File in a subflow named Subflow1, you would specify:

Subflow1.Write to File

To specify a stage in an embedded flow that is within another embedded flow, add the parent flow, separating each with a period. For example, if Embedded Dataflow 2 is inside Embedded Dataflow 1, and you want to specify the Write to File stage in Embedded Dataflow 2, you would specify this:

Embedded Dataflow 1.Embedded Dataflow 2.Write to File

Protocol

A communication protocol that can be one of these types:

file

Use the file protocol if the file is on the same machine as the Spectrum Technology Platform server. For example, on Windows specify:

"file:/C:/myfile.txt"

On Linux specify:

"file:/testfiles/myfile.txt"

esclient

Use the esclient protocol if the file is on the computer where you are executing the job if it is a different computer from the one running the Spectrum Technology Platform server. Use this format:

esclient:ComputerName/path to file

For example,

esclient:mycomputer/testfiles/myfile.txt

Note: If you are executing the job on the server itself, you can use either the file or esclient protocol, but are likely to have better performance using the file protocol.

If the host name of the Spectrum Technology Platform server cannot be resolved, you may get the error "Error occurred accessing file". To resolve this issue, open this file on the server: SpectrumDirectory/server/conf/spectrum-container.properties. Set the spectrum.runtime.hostname property to the IP address of the server.

esfile

Use the esfile protocol if the file is on a file server. The file server must be defined in Spectrum Management Console as a resource. Use this format:

esfile://file server/path to file

For example,

esfile://myserver/testfiles/myfile.txt

Where myserver is an FTP file server resource defined in Spectrum Management Console.

webhdfs

Use the webhdfs protocol if the file is on a Hadoop Distributed File Server. The HDFS server must be defined in Spectrum Management Console as a resource. Use this format:

webhdfs://file server/path to file

For example,

webhdfs://myserver/testfiles/myfile.txt

Where myserver is an HDFS file server resource defined in Spectrum Management Console.

FileName

The full path to the file you want to use as input or output.

Note: You must use forward slashes in file paths. Do not use backslashes.

To specify multiple overrides, separate each override with a comma.