MRS Presto SQL
Functions
The MRS Presto SQL node is used to execute the Presto SQL script predefined in DataArts Factory.
Parameters
Table 1, Table 2, and Table 3 describe the parameters of the MRS Presto SQL node.
Parameters |
Mandatory |
Description |
---|---|---|
SQL or Script |
Yes |
You can select SQL statement or SQL script.
|
Data Connection |
Yes |
Data connection that is configured in the SQL script. The value can be changed. |
Schema |
Yes |
Database that is configured in the SQL script. The value can be changed. |
Script Parameter |
No |
If the associated SQL script uses a parameter, the parameter name is displayed. Set the parameter value in the text box next to the parameter name. The parameter value can be an EL expression. If the parameters of the associated SQL script are changed, click to refresh the parameters. |
Node Name |
Yes |
Name of the SQL script. The value can be changed. Node name. It contains 1 to 64 characters. Only letters, digits, hyphens (-), and underscores (_) are allowed.
NOTE:
The node name cannot contain Chinese characters or more than 64 characters. If the node name does not meet requirements, the MRS job will fail to be submitted. |
Parameter |
Mandatory |
Description |
---|---|---|
Node Status Polling Interval (s) |
Yes |
Specifies how often the system check completeness of the node task. The value ranges from 1 to 60 seconds. |
Max. Node Execution Duration |
Yes |
Execution timeout interval for the node. If retry is configured and the execution is not complete within the timeout interval, the node will not be retried and is set to the failed state. |
Retry upon Failure |
Yes |
Indicates whether to re-execute a node task if its execution fails. Possible values:
NOTE:
If Timeout Interval is configured for the node, the node will not be executed again after the execution times out. Instead, the node is set to the failure state. |
Failure Policy |
Yes |
Operation that will be performed if the node task fails to be executed. Possible values:
|
Parameter |
Description |
---|---|
Input |
|
Add |
Click Add. In the Type drop-down list, select the type to be created. The value can be DWS, OBS, CSS, HIVE, DLI, or CUSTOM.
|
OK |
Click OK to save the parameter settings. |
Cancel |
Click Cancel to cancel the parameter settings. |
Modify |
Click to modify the parameter settings. After the modification, save the settings. |
Delete |
Click to delete the parameter settings. |
View Details |
Click to view details about the table created based on the input lineage. |
Output |
|
Add |
Click Add. In the Type drop-down list, select the type to be created. The value can be DWS, OBS, CSS, HIVE, DLI, or CUSTOM.
|
OK |
Click OK to save the parameter settings. |
Cancel |
Click Cancel to cancel the parameter settings. |
Modify |
Click to modify the parameter settings. After the modification, save the settings. |
Delete |
Click to delete the parameter settings. |
View Details |
Click to view details about the table created based on the output lineage. |
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