Question

What is the default buffer size of DataWeave and what happens when you exceed it?

Answer 1

The default buffer size for DataWeave is 16KB, and exceeding it causes the engine to write data to disk, which could lead to reduced performance.

Step-by-step explanation:

The default buffer size for DataWeave in MuleSoft applications is 16KB. When processing data, if the DataWeave engine exceeds this buffer size, it starts writing the excessive data to disk to prevent out-of-memory issues. This operation might lead to performance degradation due to disk I/O operations. It's important for developers working with large data sets to be aware of the buffer size implications and to adjust it if necessary by configuring the maxBufferSize parameter in their application settings.