starlingx
/
config
Code Issues Proposed changes

Mtce: Make Multi-Node Failure Avoidance Configurable 

The maintenance system implements a high availability (HA) feature
designed to detect the simultaneous heartbeat failure of a group
of hosts and avoid failing all those hosts until heartbeat resumes
or after a set period of time.

This feature is called Multi-Node Failure Avoidance, aka MNFA, and
currently has the hosts threshold set to 3 and timeout set to 100 secs.

This update implements enhancements to that existing feature by
making the 'number-of-hosts threshold' and 'timeout period'
customer configurable service parameters.

The new service parameters are listed under platform:maintenance which
display with the following command

> system service-parameter-list

mnfa_threshold: This new label and value is added to the puppet
managed /etc/mtc.ini and represents the number of hosts that are
required to fail heartbeat as a group; within the heartbeat
failure window (heartbeat_failure_threshold) after which maintenance
activates MNFA Mode.

This update changes the default number of failing hosts from
3 to 2 while allowing a configurable range from 2 to 100.

mnfa_timeout: This new label and value is added to the puppet
managed /etc/mtc.ini. While MNFA mode is active, it will remain active
until the number of failing hosts drop below the mnfa_threshold or this
timer expires. The MNFA mode deactivates on the first occurance of
either case. Upon deactivation the remaining failed hosts are no
longer treated as a failure group but instead are all Gracefully
Recovered individually. A value of zero imposes no timeout making the
deactivation criteria solely host based.

This update changes the default 100 second timer to 0; no-timeout
while permitting valid a times range from 100 to 86400 secs or 1 day.

DocImpact
Story: 2003576
Task: 24903

Change-Id: I2fb737a4cd3c235845b064449949fcada303d6b2
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
This commit is contained in:
Eric MacDonald 2018-08-29 15:12:12 -04:00
parent 4cbc961dc8
commit f19dd0498f
7 changed files with 81 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
puppet-manifests/src/hieradata/controller.yaml
View File

@ -51,6 +51,8 @@ platform::mtce::agent::params::controller_boot_timeout: 1200
platform::mtce::agent::params::heartbeat_period: 100
platform::mtce::agent::params::heartbeat_failure_threshold: 10
platform::mtce::agent::params::heartbeat_degrade_threshold: 6
platform::mtce::agent::params::mnfa_threshold: 2
platform::mtce::agent::params::mnfa_timeout: 0
# influxdb configuration for collectd
platform::influxdb::params::bind_address: ':25826'

2
puppet-manifests/src/modules/platform/manifests/mtce.pp
View File

@ -14,6 +14,8 @@ class platform::mtce::params (
$heartbeat_failure_threshold = undef,
$heartbeat_period = undef,
$mtce_multicast = undef,
$mnfa_threshold = undef,
$mnfa_timeout = undef,
) { }

2
puppet-modules-wrs/puppet-mtce/centos/build_srpm.data
View File

@ -1,3 +1,3 @@
SRC_DIR="src"
COPY_LIST="$SRC_DIR/LICENSE"
TIS_PATCH_VER=6
TIS_PATCH_VER=7

27
puppet-modules-wrs/puppet-mtce/src/mtce/templates/mtc_ini.erb
View File

@ -1,4 +1,4 @@
; Packstack managed Maintenance Configuration
; Puppet Managed Maintenance Configuration
[agent] ; Agent Configuration
keystone_auth_username = <%= @auth_username %> ; mtce auth username
keystone_auth_pw = <%= @auth_pw %> ; mtce auth password
@ -16,8 +16,31 @@ heartbeat_period = <%= @heartbeat_period %> ; Heartbeat period in milliseconds
heartbeat_failure_threshold = <%= @heartbeat_failure_threshold %> ; Heartbeat failure threshold count.
heartbeat_degrade_threshold = <%= @heartbeat_degrade_threshold %> ; Heartbeat degrade threshold count.
; Multi-Node Failure Avoidance (MNFA) Activation and Deactivation threshold.
; The minimum number of hosts that fail heartbeat within the
; heartbeat_failure_threshold upon which Maintenance activates MNFA Mode.
; Once the number of failing hosts drop below this threshold then mainteance
; deactivates MNFA mode while remaining failing hosts are Gracefully Recovered.
; Default value is 2
; Minimum value is 2
; To modify execute:
; system service-parameter-modify platform maintenance mnfa_threshold=<value>
mnfa_threshold = <%= @mnfa_threshold %>
[timeouts]
compute_boot_timeout = <%= @compute_boot_timeout %> ; The max time (seconds) that Mtce waits for the mtcAlive
controller_boot_timeout = <%= @controller_boot_timeout %> ; message after which it will time out and fail the host.
; Multi-Node Failure Avoidance (MNFA) Lifecycle Timer.
; MNFA Activation starts a timer with this timeout value.
; See mnfa_threshold above.
; Maintenance automatically Deactivates MNFA mode if the number of hosts that
; are failing heartbeat doesn't drop below mnfa_threshold before timer expires.
; Timer is in seconds.
; A zero value means infinite lifecycle or until the number of
; heartbeat failing hosts drops below the mnfa_threshold before expiry.
; Default value is 0
; Minimum non-zero value is 100 ; maximum is 86400
; To modify execute:
; system service-parameter-modify platform maintenance mnfa_timeout=<value>
mnfa_timeout = <%= @mnfa_timeout %>

4
sysinv/sysinv/sysinv/sysinv/common/constants.py
View File

@ -944,12 +944,16 @@ SERVICE_PARAM_PLAT_MTCE_CONTROLLER_BOOT_TIMEOUT = 'controller_boot_timeout'
SERVICE_PARAM_PLAT_MTCE_HBS_PERIOD = 'heartbeat_period'
SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD = 'heartbeat_failure_threshold'
SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD = 'heartbeat_degrade_threshold'
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD = 'mnfa_threshold'
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT = 'mnfa_timeout'
SERVICE_PARAM_PLAT_MTCE_COMPUTE_BOOT_TIMEOUT_DEFAULT = 720
SERVICE_PARAM_PLAT_MTCE_CONTROLLER_BOOT_TIMEOUT_DEFAULT = 1200
SERVICE_PARAM_PLAT_MTCE_HBS_PERIOD_DEFAULT = 100
SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD_DEFAULT = 10
SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD_DEFAULT = 6
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_DEFAULT = 2
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_DEFAULT = 0
# Nova Service Parameters
SERVICE_PARAM_SECTION_NOVA_PCI_ALIAS = 'pci_alias'

37
sysinv/sysinv/sysinv/sysinv/common/service_parameter.py
View File

@ -93,6 +93,18 @@ def _validate_range(name, value, min, max):
"Parameter '%s' must be an integer value." % name))
def _validate_zero_or_range(name, value, min, max):
try:
if int(value) != 0:
if int(value) < min or int(value) > max:
raise wsme.exc.ClientSideError(_(
"Parameter '%s' must be zero or between %d and %d.")
% (name, min, max))
except ValueError:
raise wsme.exc.ClientSideError(_(
"Parameter '%s' must be an integer value." % name))
def _validate_ldap_url(name, value):
url = urlparse.urlparse(value)
@ -545,6 +557,19 @@ def _validate_hbs_degrade_threshold(name, value):
SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD_MAX)
def _validate_mnfa_threshold(name, value):
_validate_range(name, value,
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_MIN,
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_MAX)
def _validate_mnfa_timeout(name, value):
# accept zero (no timeout) or a reasonable/tested specific range
_validate_zero_or_range(name, value,
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_MIN,
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_MAX)
# Validate range of Performance Monitoring Event 'time to live" value
def _validate_event_time_to_live_range(name, value):
_validate_range(name, value,
@ -1308,6 +1333,8 @@ PLATFORM_MTCE_PARAMETER_MANDATORY = [
constants.SERVICE_PARAM_PLAT_MTCE_HBS_PERIOD,
constants.SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD,
constants.SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD,
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD,
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT,
]
PLATFORM_SYSINV_PARAMETER_PROTECTED = ['firewall_rules_id']
@ -1322,6 +1349,10 @@ SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD_MIN = 10
SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD_MAX = 100
SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD_MIN = 4
SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD_MAX = 100
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_MIN = 2
SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_MAX = 100
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_MIN = 100
SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_MAX = 86400
PLATFORM_MTCE_PARAMETER_VALIDATOR = {
constants.SERVICE_PARAM_PLAT_MTCE_COMPUTE_BOOT_TIMEOUT:
@ -1334,6 +1365,10 @@ PLATFORM_MTCE_PARAMETER_VALIDATOR = {
_validate_hbs_failure_threshold,
constants.SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD:
_validate_hbs_degrade_threshold,
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD:
_validate_mnfa_threshold,
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT:
_validate_mnfa_timeout,
}
PLATFORM_MTCE_PARAMETER_RESOURCE = {
@ -1342,6 +1377,8 @@ PLATFORM_MTCE_PARAMETER_RESOURCE = {
constants.SERVICE_PARAM_PLAT_MTCE_HBS_PERIOD: 'platform::mtce::params::heartbeat_period',
constants.SERVICE_PARAM_PLAT_MTCE_HBS_FAILURE_THRESHOLD: 'platform::mtce::params::heartbeat_failure_threshold',
constants.SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD: 'platform::mtce::params::heartbeat_degrade_threshold',
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD: 'platform::mtce::params::mnfa_threshold',
constants.SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT: 'platform::mtce::params::mnfa_timeout',
}
# Panko Event TTL range from 1 hour to 1 year

10
sysinv/sysinv/sysinv/sysinv/conductor/manager.py
View File

@ -486,6 +486,16 @@ class ConductorManager(service.PeriodicService):
'name': constants.SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD,
'value': constants.SERVICE_PARAM_PLAT_MTCE_HBS_DEGRADE_THRESHOLD_DEFAULT,
},
{'service': constants.SERVICE_TYPE_PLATFORM,
'section': constants.SERVICE_PARAM_SECTION_PLATFORM_MAINTENANCE,
'name': constants.SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD,
'value': constants.SERVICE_PARAM_PLAT_MTCE_MNFA_THRESHOLD_DEFAULT,
},
{'service': constants.SERVICE_TYPE_PLATFORM,
'section': constants.SERVICE_PARAM_SECTION_PLATFORM_MAINTENANCE,
'name': constants.SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT,
'value': constants.SERVICE_PARAM_PLAT_MTCE_MNFA_TIMEOUT_DEFAULT,
},
{'service': constants.SERVICE_TYPE_PANKO,
'section': constants.SERVICE_PARAM_SECTION_PANKO_DATABASE,
'name': constants.SERVICE_PARAM_NAME_PANKO_DATABASE_EVENT_TIME_TO_LIVE,