The Pig activity is used to create and queue a Pig job.
Note: If you run this activity on the Redhat platform, you need to upgrade XML User Interface Language (XUL) Runner to version 1.8 or later. After the upgrading, you need to reinstall Mozilla Firefox.
General
The
General tab has the following fields.
| Field
|
Module Property?
|
Description
|
| Name
|
No
|
The name of the activity in the process definition.
|
| HCatalog Connection
|
Yes
|
Click
 to select an HCatalog Connection shared resource.
If no matching HCatalog Connection shared resources are found, click
Create Shared Resource to create one.
|
| IsFileBase
|
No
|
Select this check box if Pig scripts are from a file.
|
| Pig File
|
Yes
|
Specifies the path of the file contains Pig scripts.
Note: This field is displayed when the
IsFileBase check box is selected.
|
| PigEditor
|
No
|
Specifies Pig scripts. The keywords of the scripts are highlighted automatically.
Note: This field is displayed when the
IsFileBase check box is cleared.
|
| Arguments
|
No
|
Specifies Pig arguments containing space-separated string.
|
| Status Directory
|
Yes
|
Specifies the directory where the status of the Pig job is located.
|
| Files
|
Yes
|
Specifies the comma separated files to be copied to the Mapreduce cluster.
|
Description
Provide a short description for the activity.
UDF
The
UDF tab has the following fields.
| Input Item
|
Module Property?
|
Description
|
| UDF Directory
|
Yes
|
Specifies the directory where user define functions (UDF) is located.
|
| Available UDF Files
|
No
|
Specifies the UDF file to be applied.
Click to
 list available UDF files under the specified UDF directory. Select a UDF file and click
 , the UDF file is displayed in the
Pig Editor field in the
General tab.
|
| Upload UDF File
|
Yes
|
Specifies the UDF file to be uploaded.
Click
 to select the UDF file to be uploaded, and then click
Upload to upload the file to the specified directory.
|
Input
The values specified in this tab takes precedence over the ones in the corresponding fields in the
General tab.
| Input Item
|
Data Type
|
Description
|
| PigScript
|
string
|
Specifies Pig scripts.
Note: This item is displayed when the
IsFileBase check box is cleared.
|
| PigFile
|
string
|
Specifies the comma separated files to be copied to the Mapreduce cluster.
Note: This item is displayed when the
IsFileBase check box is selected.
|
| Arguments
|
string
|
Specifies Pig arguments.
|
| StatusDirectory
|
string
|
Specifies the directory where the status of the Hive job is located.
|
| Files
|
string
|
Specifies the comma separated files to be copied to the Mapreduce cluster.
|
Output
The output of the activity are as follows.
| Output Item
|
Data Type
|
Description
|
| jobId
|
string
|
Returns the job ID of the Pig operation.
Note: You can use the WaitForJobCompletion activity to wait for the job to complete. The
exitValue in the
Output tab of the WaitForJobCompletion activity shows the exit value of Pig scripts execution.
|
Fault
The
Fault tab lists the exceptions that can be thrown by this activity.
| HadoopException
|
Description
|
| msg
|
The error message description returned by the plug-in.
|
| msgCode
|
The error code returned by the plug-in.
|
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