Implemented @Schedular cron, in side that creating a connection to DB, updating and fetching some data, this job is running every half n hr, looks like some connection leakage happening, in MongoDB ops Manager can check increase in connection count constantly, In the debug mode, saw below thread keep opening fore every 30 mins jobs execution and count goes increasing,

Daemon Thread [cluster-ClusterId

{value='59dd158570cb2857e2b0748e', description='null'}

-rn2-empsyst-lmdb24.rno.apple.com:10901] (Running)