how to deal with huge file size in json

step 1- save json file into hard drive

step 2- use tFileInputJSON component and use as given in below picture-

print console message in RED in Talend

Use this code in tJava -

System.err.println("Updating history table");
 

memory heap error in Talend

How to overcome GC overload error

user these JVM_Arguments

-Xms1000M
-Xmx6G
-XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode
-XX:SurvivorRatio=16

Printing error in Talend

Use following java code in tJava-

System.err.println("Hello this is error");

This will print Hello this is error
good for error printing.

Schema Issue Fix with tMap

If you have any Schema related error you are not able figure out the column name (good for huge number of columns)

Use the tMap and use Find option (top center) and get that specific column and change data type, size etc and fix the issue.

adding new component without component bar

just start typing component name at work area and  you will get matching components.