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Improve fence handling conditions 

Use the intermediate output text when judging the fence status, rather
than the retcode of the stop as this should be more reliable.
This commit is contained in:
Joshua Boniface 2024-05-08 10:55:15 -04:00
parent f6e856bf98
commit dcb9c0d12c
1 changed files with 16 additions and 10 deletions
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24
node-daemon/pvcnoded/util/fencing.py
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@ -253,12 +253,16 @@ def reboot_via_ipmi(node_name, ipmi_hostname, ipmi_user, ipmi_password, logger):
state="i",
prefix=f"fencing {node_name}",
)
ipmi_status_retcode, ipmi_status_stdout, ipmi_status_stderr = common.run_os_command(
(
ipmi_intermediate_status_retcode,
ipmi_intermediate_status_stdout,
ipmi_intermediate_status_stderr,
) = common.run_os_command(
f"/usr/bin/ipmitool -I lanplus -H {ipmi_hostname} -U {ipmi_user} -P {ipmi_password} chassis power status"
)
if ipmi_status_retcode == 0:
if ipmi_intermediate_status_retcode == 0:
logger.out(
f"Current chassis power state is: {ipmi_status_stdout.strip()}",
f"Current chassis power state is: {ipmi_intermediate_status_stdout.strip()}",
state="i",
prefix=f"fencing {node_name}",
)
@ -299,12 +303,14 @@ def reboot_via_ipmi(node_name, ipmi_hostname, ipmi_user, ipmi_password, logger):
state="i",
prefix=f"fencing {node_name}",
)
ipmi_status_retcode, ipmi_status_stdout, ipmi_status_stderr = common.run_os_command(
ipmi_final_status_retcode, ipmi_final_status_stdout, ipmi_final_status_stderr = (
common.run_os_command(
f"/usr/bin/ipmitool -I lanplus -H {ipmi_hostname} -U {ipmi_user} -P {ipmi_password} chassis power status"
)
)
if ipmi_stop_retcode == 0:
if ipmi_status_stdout.strip() == "Chassis Power is on":
if ipmi_intermediate_status_stdout.strip() == "Chassis power is off":
if ipmi_final_status_stdout.strip() == "Chassis Power is on":
# We successfully rebooted the node and it is powered on; this is a succeessful fence
logger.out(
"Successfully rebooted dead node; proceeding with fence recovery action",
@ -312,7 +318,7 @@ def reboot_via_ipmi(node_name, ipmi_hostname, ipmi_user, ipmi_password, logger):
prefix=f"fencing {node_name}",
)
return True
elif ipmi_status_stdout.strip() == "Chassis Power is off":
elif ipmi_final_status_stdout.strip() == "Chassis Power is off":
# We successfully rebooted the node but it is powered off; this might be expected or not, but the node is confirmed off so we can call it a successful fence
logger.out(
"Chassis power is in confirmed off state after successfuly IPMI reboot; proceeding with fence recovery action",
@ -323,13 +329,13 @@ def reboot_via_ipmi(node_name, ipmi_hostname, ipmi_user, ipmi_password, logger):
else:
# We successfully rebooted the node but it is in some unknown power state; since this might indicate a silent failure, we must call it a failed fence
logger.out(
f"Chassis power is in an unknown state ({ipmi_status_stdout.strip()}) after successful IPMI reboot; NOT proceeding fence recovery action",
f"Chassis power is in an unknown state ({ipmi_final_status_stdout.strip()}) after successful IPMI reboot; NOT proceeding fence recovery action",
state="e",
prefix=f"fencing {node_name}",
)
return False
else:
if ipmi_status_stdout.strip() == "Chassis Power is off":
if ipmi_final_status_stdout.strip() == "Chassis Power is off":
# We failed to reboot the node but it is powered off; it has probably suffered a serious hardware failure, but the node is confirmed off so we can call it a successful fence
logger.out(
"Chassis power is in confirmed off state after failed IPMI reboot; proceeding with fence recovery action",