Gemfire function timeout

I need to run a function at the server side to clean up some old data. The function execution would take 5-10 min, and I set the Server's maximum-time-between-pings to 10 min and the Client's read-timeout to 10min. But there is still a broken pipe exception from the server side. How can I fix it?

Topology: Client/Server

Gemfire version: 6.5