def is_migration_possible(guest_info,host_info):
try:
logger.debug("Entering into is_migration_possible")
#host mem usage used_mem_in_kb
host_ip = host_info['host_ip'].private_ip
host_mem_utilization = get_host_mem_usage(host_ip)
memhog_usage = get_memhog_usage(host_ip)
logger.debug("For host:"+str(host_ip)+" PSS Value from memhog="+str(memhog_usage))
host_mem_utilization=((host_mem_utilization * 1024 ) - memhog_usage)
logger.debug("For host:"+str(host_ip)+" host_mem_utilization="+str(host_mem_utilization))
# guest mem usage
guest_present_host = guest_info['host_id'].host_ip.private_ip
guest_domain = getVirshDomain(guest_info)
guest_mem_utilization = get_dom_mem_usage(guest_domain, guest_present_host)
host_utilization_if_migrated = (host_mem_utilization + guest_mem_utilization)/(host_info['RAM']*1024*1024*1024)
host_utilization_if_migrated = host_utilization_if_migrated * 100
logger.debug("host_mem_utilization is " +str(host_mem_utilization))
logger.debug("guest_mem_utilization is " +str(guest_mem_utilization))
logger.debug("host_info['RAM']*1024*1024*1024 is " +str(host_info['RAM']*1024*1024*1024))
logger.debug("host_utilization_if_migrated is " +str(host_utilization_if_migrated))
if(host_utilization_if_migrated > 90):
return False
else:
return True
except:
logger.exception('Exception in is_migration_possible')
return False
def is_migration_possible(guest_info,host_info):
try:
logger.debug("Entering into is_migration_possible")
#host mem usage used_mem_in_kb
host_ip = host_info['host_ip'].private_ip
host_mem_utilization = get_host_mem_usage(host_ip)
host_mem_utilization = host_mem_utilization * 1024
# guest mem usage
guest_present_host = guest_info['host_id'].host_ip.private_ip
guest_mem_utilization = get_dom_mem_usage(guest_info['vm_identity'], guest_present_host)
host_utilization_if_migrated = (host_mem_utilization + guest_mem_utilization)/(host_info['RAM']*1024*1024*1024)
host_utilization_if_migrated = host_utilization_if_migrated * 100
logger.debug("host_mem_utilization is " +str(host_mem_utilization))
logger.debug("guest_mem_utilization is " +str(guest_mem_utilization))
logger.debug("host_utilization_if_migrated is " +str(host_utilization_if_migrated))
if(host_utilization_if_migrated > 90):
return False
else:
return True
except:
logger.exception('Exception in is_migration_possible')
return False
def is_migration_possible(guest_info, host_info):
"""
Checks whether migration on the host is possible or not and criteria is host utilization should not
go above 90% after migration.
"""
try:
logger.debug("Entering into is_migration_possible")
#host mem usage used_mem_in_kb
host_ip = host_info['host_ip'].private_ip
host_mem_utilization = get_host_mem_usage(host_ip)
memhog_usage = get_memhog_usage(host_ip)
logger.debug("For host:" + str(host_ip) + " PSS Value from memhog=" +
str(memhog_usage))
host_mem_utilization = ((host_mem_utilization * 1024) - memhog_usage)
logger.debug("For host:" + str(host_ip) + " host_mem_utilization=" +
str(host_mem_utilization))
# guest mem usage
guest_present_host = guest_info['host_id'].host_ip.private_ip
guest_domain = getVirshDomain(guest_info) # @UndefinedVariable
guest_mem_utilization = get_dom_mem_usage(guest_domain,
guest_present_host)
host_utilization_if_migrated = (
host_mem_utilization +
guest_mem_utilization) / (host_info['RAM'] * 1024 * 1024 * 1024)
host_utilization_if_migrated = host_utilization_if_migrated * 100
logger.debug("host_mem_utilization is " + str(host_mem_utilization))
logger.debug("guest_mem_utilization is " + str(guest_mem_utilization))
logger.debug("host_info['RAM']*1024*1024*1024 is " +
str(host_info['RAM'] * 1024 * 1024 * 1024))
logger.debug("host_utilization_if_migrated is " +
str(host_utilization_if_migrated))
if (host_utilization_if_migrated > 90):
return False
else:
return True
except:
logger.exception('Exception in is_migration_possible')
return False
def is_migration_possible(guest_info, host_info):
"""
Checks whether migration on the host is possible or not and criteria is host utilization should not
go above 90% after migration.
"""
try:
logger.debug("Entering into is_migration_possible")
# host mem usage used_mem_in_kb
host_ip = host_info["host_ip"].private_ip
host_mem_utilization = get_host_mem_usage(host_ip)
memhog_usage = get_memhog_usage(host_ip)
logger.debug("For host:" + str(host_ip) + " PSS Value from memhog=" + str(memhog_usage))
host_mem_utilization = (host_mem_utilization * 1024) - memhog_usage
logger.debug("For host:" + str(host_ip) + " host_mem_utilization=" + str(host_mem_utilization))
# guest mem usage
guest_present_host = guest_info["host_id"].host_ip.private_ip
guest_domain = getVirshDomain(guest_info) # @UndefinedVariable
guest_mem_utilization = get_dom_mem_usage(guest_domain, guest_present_host)
host_utilization_if_migrated = (host_mem_utilization + guest_mem_utilization) / (
host_info["RAM"] * 1024 * 1024 * 1024
)
host_utilization_if_migrated = host_utilization_if_migrated * 100
logger.debug("host_mem_utilization is " + str(host_mem_utilization))
logger.debug("guest_mem_utilization is " + str(guest_mem_utilization))
logger.debug("host_info['RAM']*1024*1024*1024 is " + str(host_info["RAM"] * 1024 * 1024 * 1024))
logger.debug("host_utilization_if_migrated is " + str(host_utilization_if_migrated))
if host_utilization_if_migrated > 90:
return False
else:
return True
except:
logger.exception("Exception in is_migration_possible")
return False
