Managing HP Serviceguard for Linux, Sixth Edition, August 2006

Understanding Serviceguard Software Components
How Package Control Scripts Work
Chapter 3 65
Normal and Abnormal Exits from the Halt Script
The package’s ability to move to other nodes is affected by the exit
conditions on leaving the halt script. The following are the possible exit
codes:
• 0—normal exit. The package halted normally, so all services are
down on this node.
• 1—abnormal exit, also known as NO_RESTART exit. The package did
not halt normally. Services are killed, and the package is disabled
globally. It is not disabled on the current node, however.
• Timeout—Another type of exit occurs when the
HALT_SCRIPT_TIMEOUT is exceeded. In this scenario, the package is
killed and disabled globally. It is not disabled on the current node,
however.
Package Control Script Error and Exit Conditions
Table 3-4 shows the possible combinations of error condition, failfast
setting and package movement for failover packages.
Table 3-4 Error Conditions and Package Movement
Package Error Condition Results
Error or
Exit
Code
Node
Failfast
Enabled
Service
Failfast
Enabled
Linux
Status
on
Primary
after
Error
Halt
script
runs
after
Error
or Exit
Package
Allowed to
Run on
Primary
Node after
Error
Package
Allowed to
Run on
Alternate
Node
Service
Failure
YES YES TOC No N/A (TOC) Yes
Service
Failure
NO YES TOC No N/A (TOC) Yes
Service
Failure
YES NO Running Yes No Yes
Service
Failure
NO NO Running Yes No Yes