[FLINK-930] Netty Initialization is sometimes very slow

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: performance
• Assignee: Ufuk Celebi
• Reporter: Stephan Ewen
• Created: 12/Jun/14 16:21
• Updated: 18/Jun/14 22:47
• Resolved: 18/Jun/14 22:47

Description

I often see the initialization of Netty taking 3 seconds and then failing with the message

"WARN io.netty.util.internal.ThreadLocalRandom - Failed to generate a seed from SecureRandom within 3 seconds. Not enough entrophy?"

This adds to every single run a 3 seconds delay, which is often more than the test time and causes our builds to run out of time.