def try_pcmk_wait():
"""Try pcmk.wait_for_pcmk()
Log results and set status message
"""
try:
pcmk.wait_for_pcmk()
log("Pacemaker is ready", DEBUG)
except pcmk.ServicesNotUp:
msg = ("Pacemaker is down. Please manually start it.")
log(msg, ERROR)
status_set('blocked', msg)
raise pcmk.ServicesNotUp(msg)
def validated_restart_corosync(retries=10):
"""Restart and validate Corosync and Pacemaker are in fact up and running.
@param retries: number of attempts to restart the services before giving up
@raises pcmk.ServicesNotUp if after retries services are still not up
"""
for restart in range(retries):
try:
if restart_corosync():
log("Corosync and Pacemaker are validated as up and running.",
INFO)
return
else:
log("Corosync or Pacemaker not validated as up yet, retrying",
WARNING)
except pcmk.ServicesNotUp:
log("Pacemaker failed to start, retrying", WARNING)
continue
msg = ("Corosync and/or Pacemaker failed to restart after {} retries"
"".format(retries))
log(msg, ERROR)
status_set('blocked', msg)
raise pcmk.ServicesNotUp(msg)