Huagen, it appears you have DEBUG level logging enabled. Oleg
On Jun 4, 2016, at 21:27, Huagen peng <huagen.p...@gmail.com<mailto:huagen.p...@gmail.com>> wrote: Hi, I got excessive logging from my NiFi instance. I suddenly see logging like the following going into nidi-bootstrap.log very fast, like 10g/hour, filling up my disk quickly. What is the cause of this? How to stop it going into the log? I tried to look into the logback.xml file and even commented out the logger for org.apache.nifi.StdOut, this did not help at all. Thanks, Huagen 2016-06-04 12:56:09,416 INFO [NiFi logging handler] org.apache.nifi.StdOut 12:56:08.696 [Timer-Driven Process Thread-4] DEBUG org.apache.nifi.engine.FlowEngine - A flow controller execution task 'java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@7753bd5e' has been cancelled. 2016-06-04 05:22:58,034 INFO [NiFi logging handler] org.apache.nifi.StdOut 05:22:58.034 [Timer-Driven Process Thread-3] DEBUG org.apache.nifi.engine.FlowEngine - A flow controller execution task 'java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@546d70b0' has been cancelled.
