I see this too. Might explain some other serious problems we're having with 1.5.2 Is your cluster in AWS?
Sent from my Verizon Wireless 4G LTE smartphone -------- Original message -------- From: Andy Max <andyma...@gmail.com> Date: 02/11/2016 2:12 PM (GMT-05:00) To: user@spark.apache.org Subject: Spark workers disconnecting on 1.5.2 I launched a 4 node Spark 1.5.2 cluster. No activity for a day or so. Now noticed that few of the workers are disconnected. Don't see this issue on Spark 1.4 or Spark 1.3. Would appreciate any pointers. Thx