@Raj B Please check for the 'Writes Attribute' in 'usage' of the processor. It describes the attribute each processor writes in case of failure. Below is the Usage of 'ExecuteStreamCommand' and it details 4 different error it writes during the execution. ... View more

@Raj B You can do this in many ways, 1. You can have an update attribute processor at the beginning of every Processor Group to specify the module name. But this cannot be replicated at processor level. Here, you keep updating the same attribute throughout the flow 2. You have have a 'Metadata' -> as a table or a flat file that will log all the attributes of the flow file. Please check AttributeToJson processor. This can log flow attributes both as an attribute or content. Also, note that every nifi processor adds additional 'error' attribute in case of any error which can be captured by AttributeToJson processor. Hope this helps ... View more