[AMBARI-6288] ambari-server may kill INIT and SSHD process (in some specific scenarios)

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.1
• Fix Version/s: 1.6.1
• Component/s: ambari-server
• Assignee: Dmitry Lysnichenko
• Reporter: Dmitry Lysnichenko
• Created: 26/Jun/14 17:15
• Updated: 26/Jun/14 17:57
• Resolved: 26/Jun/14 17:57

Description

STR:

1. create directory
2. change current dir to this directory
3. remove directory
4. run ambari-server restart. It will complain that could not perform getcwd and fail.
5. Check ambari-server PID file:

   # cat /var/run/ambari-server/ambari-server.pid 
   1
   

6. The 1 is a PID of an /sbin/init process

   cat /proc/1/cmdline 
   /sbin/init
   

7. Try to restart ambari-server. It notices that old process (INIT) is running and tries to kills it. As a result, INIT process does not die, but SSHD and probably other services are killed, active login sessions are terminated.
8. Now host is not available over SSH and requires physical access

Issue Links

• links to: review board