I've setup something similar with the spooling directory source. I have a script that is scheduled on the app server to create an incremental file every minute and then drop the incremental file in the spool directory for processing. The use case is web logs that roll over daily, but we want events 'near' real time. We didn't want to use the exec source as that gives no delivery guarantee, at least with a spooling source if the flume agent stops processing the incremental files stay in the spool dir until it's back up.
Hope that helps, Paul Chavez From: Wang, Yongkun | Yongkun | BDD [mailto:[email protected]] Sent: Sunday, August 18, 2013 7:30 PM To: [email protected] Subject: sleep() in script doesn't work when called by exec Source Hi, I am testing with apache-flume-1.4.0-bin. I made a naive python script for exec source to do throttling by calling sleep() function. But the sleep() doesn't work when called by exec source. Any ideas about this or do you have some simply solution for throttling instead of a custom source? Flume config: agent.sources = src1 agent.sources.src1.type = exec agent.sources.src1.command = read-file-throttle.py read-file-throttle.py: #!/usr/bin/python import time count=0 pre_time=time.time() with open("apache.log") as infile: for line in infile: line = line.strip() print line count += 1 if count % 50000 == 0: now_time = time.time() diff = now_time - pre_time if diff < 10: #print "sleeping %s seconds ..." % (diff) time.sleep(diff) pre_time = now_time Thank you very much. Best Regards, Yongkun Wang
