[STORM-3675] Eliminate ps command and use /proc/<pid> status in ServerUtils

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0
• Component/s: storm-server
• Assignee: Bipin Prasad
• Reporter: Bipin Prasad
• Created: 16/Jul/20 05:03
• Updated: 31/Aug/20 19:32
• Resolved: 31/Aug/20 19:32

Description

In ServerUtils.java, the ps command is very expensive on loaded Linux system. when trying to determine if all worker processes are dead. Changed ownership or missing /proc/<pid> directory for should be sufficient to detect death of process.