What I found from a quick search of the Spark source code (from my local snapshot on January 25, 2015):
// Interval between each check for event log updates private val UPDATE_INTERVAL_MS = conf.getInt("spark.history.fs.updateInterval", conf.getInt("spark.history.updateInterval", 10)) * 1000 private val retainedApplications = conf.getInt("spark.history.retainedApplications", 50) On Tue, Mar 10, 2015 at 12:37 AM Srini Karri <skarri....@gmail.com> wrote: > Hi All, > > What are the default values for the following conf properities if we don't > set in the conf file? > > # spark.history.fs.updateInterval 10 > > # spark.history.retainedApplications 500 > > > Regards, > > Srini. >