It seems that spark-ec2 script deploys Tachyon module along with other setup.
I am trying to use .persist(OFF_HEAP) for RDD persistence, but on worker I see this error
Failed to connect (2) to master localhost/127.0.0.1:19998 : java.net.ConnectException: Connection refused
From netstat I see that worker is connected to master node on port 19998
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 ip-10-16-132-190.ec2.:49239 ip-10-158-45-248.ec2.:19998 ESTABLISHED
Does Tachyon on EC2 work out of the box? or does it requite further configuration ?
Am I supposed to set "spark.tachyonStore.url" to Masters IP ?