Component family |
Logs & Errors |
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Function |
Displays data or results in the Run console. |
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Purpose |
tLogRow is used to monitor data |
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Basic settings |
Schema and Edit schema |
A schema is a row description, it defines the number of fields to Since version 5.6, both the Built-In mode and the Repository mode are Click Edit schema to make changes to the schema. If the
This component offers the advantage of the dynamic schema feature. This allows you to This dynamic schema feature is designed for the purpose of retrieving unknown columns |
Built-in: You can create the schema and store it locally for this component. Related topic: see Talend Studio User Guide. |
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Repository: You have already created and stored the schema in the Repository. You can reuse it in various projects and Job flowcharts. Related topic: see Talend Studio User Guide. |
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Sync columns | Click to synchronize the output file schema with the input file schema. The Sync function is available only when the component is linked with the preceding component using a Row connection. |
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Basic | Displays the output flow in basic mode. | |
Table | Displays the output flow in table cells. | |
Vertical |
Displays each row of the output flow as a key-value list. With this mode selected, you can choose to show either the unique |
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Separator (For Basic mode only) |
Enter the separator which will delimit data on the Log |
Print header (For Basic mode only) |
Select this check box to include the header of the input flow in the output display. |
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Print component unique name in front of each (For Basic mode only) |
Select this check box to show the unique name the component in |
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Print schema column name in front of each (For Basic mode only) |
Select this check box to retrieve column labels from output |
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Use fixed length for values (For Basic mode only) |
Select this check box to set a fixed width for the value |
Global Variables |
NB_LINE: the number of rows processed. This is an After ERROR_MESSAGE: the error message generated by the A Flow variable functions during the execution of a component while an After variable To fill up a field or expression with a variable, press Ctrl + For further information about variables, see Talend Studio |
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Usage |
This component can be used as intermediate step in a data flow or |
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Usage in Map/Reduce Jobs |
If you have subscribed to one of the Talend solutions with Big Data, you can also You need to use the Hadoop Configuration tab in the This connection is effective on a per-Job basis. For further information about a Talend Map/Reduce Job, see the sections Note that in this documentation, unless otherwise explicitly stated, a scenario presents |
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Usage in Storm Jobs |
If you have subscribed to one of the Talend solutions with Big Data, you can also The Storm version does not support the use of the global variables. You need to use the Storm Configuration tab in the This connection is effective on a per-Job basis. For further information about a Talend Storm Job, see the sections Note that in this documentation, unless otherwise explicitly stated, a scenario presents |
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Log4j |
The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html. |
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Limitation |
n/a |
For related scenarios, see: