@Gayathri, I am not sure about your complete requirement. But, the MergeContent processor is used only when you have to merge the file contents which you have split up-steam using SplitContent processor. I can suggest you with some workarounds, 1. You may have a common filename for files which follow specific schema 2. Write the file into a local file system using PutFile or into Hadoop using PutHDFS processors 3. Select 'Conflict Resolution Strategy' property to 'Append' when you write the file to disk Hope this helps.
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