A Mule application contains a Batch Job with two Batch Steps (Batch_Step_1 and Batch_Step_2). A payload with 1000 records is received by the Batch Job.
How many threads are used by the Batch Job to process records, and how does each Batch Step process records within the Batch Job?
Each Batch Job uses several threads for the Batch Steps. Each Batch Step instance receives one record at a time as the payload, and records are processed in parallel within and between the two Batch Steps. This ensures that all records are processed efficiently and concurrently, while maintaining the necessary sequence between steps, where records processed by Batch_Step_1 are subsequently processed by Batch_Step_2.
The tricky point in “A” is the statement “process records AND BATCH STEPS in ANY order” Batch Step 2 does not process a particular record before Batch Step 1.
B. Each Batch Job uses SEVERAL THREADS for the Batch Steps Each Batch Step instance receives ONE record at a time as the payload, and RECORDS are processed IN PARALLEL within and between the two Batch Steps
Batch job uses parallel threads so options C & D are incorrect. In batch processing step 1 is always executed first and before step 2 for a particular record. So option A is also not correct.
correct answer should be B. Batch step are sequential. records are processed in parallel in each batch step
B. Each Batch Job uses SEVERAL THREADS for the Batch Steps Each Batch Step instance receives ONE record at a time as the payload, and RECORDS are processed IN PARALLEL within and between the two Batch Steps
B is correct. A is not correct because for each record Batch job will end payload to step 1 before step 2. records will be processed in any order over all, however, there is a sequence maintained between batch steps.
B, batch steps are in parallel but in order, recored processed by step1 goes to step2 and this will be in parraled with other recored of step2
Each batch step instance within a batch job is typically processed in separate threads by default. This means that multiple batch step instances can be executed concurrently, each in its own thread, as long as there are enough available threads and resources.
https://docs.mulesoft.com/mule-runtime/4.3/batch-processing-concept
It should be A. Because record should process sequential in batch steps. but batch steps instances will be process in parallel in several batch job thread.