Building multiple times for same and old commit

[Ashish Yadav]

I am seeing Jenkins kick off the build job 3-4 times for the same commit. Is most cases the commit was from an earlier time.

Example:

Commit #1: 8/24/16 at 5:34pm

 - Jenkins kicks off build job as expected.

commit notification 41365xxx

Build #2: 8/25/16 at 7:58am
 - Jenkins kicks off build job for the same commit even though it already did it last night.
commit notification 41365xxx

Build #3: 8/25/16 at 8:03am
 - Jenkins kicks off build job for the same commit even though it already did it last night.
commit notification 41365xxx



What could be causing Jenkins to build for the same commit multiple times and at different intervals?
I am running Jenkins v1.642.3 on CentOS 7