@Jayendra Patil You currently have 120 set as your "maximum Timer Driven Thread Count". Multiply that by the number of nodes in your NiFi cluster to see maximum number of useable threads cumulative across you cluster. Then look at the info bar across the top of your canvas. Does it look like your dataflows is using all these threads you have allocated? You may need to make adjustments to your processor configurations to maximize the thread usage. Look for where you have bottlenecks in your dataflow (queues built up in front of processors). What kind of processors reading from these built up queues? How have they been configured? Just because you allocated more available threads does not mean NiFi processors are going to automatically start using them or even be allowed to use them. ... View more