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7.2. Telemetry Alarming Configuration Options

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The Telemetry Alarming services trigger alarms when the collected metering or event data break the defined rules. Their options are configured in the /etc/aodh/aodh.conf file.

7.2.1. Description of Configuration Options

The following tables provide a comprehensive list of the Telemetry Alarming configuration options.
Table 7.25. Description of API configuration options
Configuration option = Default value
Description
[api]
 
alarm_max_actions = -1
(Integer) Maximum count of actions for each state of an alarm, non-positive number means no limit.
enable_combination_alarms = False
(Boolean) DEPRECATED: Enable deprecated combination alarms. Combination alarms are deprecated. This option and combination alarms will be removed in Aodh 5.0.
paste_config = /usr/lib/python/site-packages/aodh/aodh/api/api-paste.ini
(String) Configuration file for WSGI definition of API.
project_alarm_quota = None
(Integer) Maximum number of alarms defined for a project.
user_alarm_quota = None
(Integer) Maximum number of alarms defined for a user.
[oslo_middleware]
 
enable_proxy_headers_parsing = False
(Boolean) Whether the application is behind a proxy or not. This determines if the middleware should parse the headers or not.
max_request_body_size = 114688
(Integer) The maximum body size for each request, in bytes.
secure_proxy_ssl_header = X-Forwarded-Proto
(String) DEPRECATED: The HTTP Header that will be used to determine what the original request protocol scheme was, even if it was hidden by a SSL termination proxy.
Table 7.26. Description of common configuration options
Configuration option = Default value
Description
[DEFAULT]
 
additional_ingestion_lag = 0
(Integer) The number of seconds to extend the evaluation windows to compensate the reporting/ingestion lag.
evaluation_interval = 60
(Integer) Period of evaluation cycle, should be >= than configured pipeline interval for collection of underlying meters.
event_alarm_cache_ttl = 60
(Integer) TTL of event alarm caches, in seconds. Set to 0 to disable caching.
executor_thread_pool_size = 64
(Integer) Size of executor thread pool.
http_timeout = 600
(Integer) Timeout seconds for HTTP requests. Set it to None to disable timeout.
notifier_topic = alarming
(String) The topic that aodh uses for alarm notifier messages.
record_history = True
(Boolean) Record alarm change events.
rest_notifier_ca_bundle_certificate_path = None
(String) SSL CA_BUNDLE certificate for REST notifier
rest_notifier_certificate_file =
(String) SSL Client certificate file for REST notifier.
rest_notifier_certificate_key =
(String) SSL Client private key file for REST notifier.
rest_notifier_max_retries = 0
(Integer) Number of retries for REST notifier
rest_notifier_ssl_verify = True
(Boolean) Whether to verify the SSL Server certificate when calling alarm action.
[database]
 
alarm_history_time_to_live = -1
(Integer) Number of seconds that alarm histories are kept in the database for (<= 0 means forever).
[evaluator]
 
workers = 1
(Integer) Number of workers for evaluator service. default value is 1.
[healthcheck]
 
backends =
(List) Additional backends that can perform health checks and report that information back as part of a request.
detailed = False
(Boolean) Show more detailed information as part of the response
disable_by_file_path = None
(String) Check the presence of a file to determine if an application is running on a port. Used by DisableByFileHealthcheck plugin.
disable_by_file_paths =
(List) Check the presence of a file based on a port to determine if an application is running on a port. Expects a "port:path" list of strings. Used by DisableByFilesPortsHealthcheck plugin.
path = /healthcheck
(String) DEPRECATED: The path to respond to healtcheck requests on.
[listener]
 
batch_size = 1
(Integer) Number of notification messages to wait before dispatching them.
batch_timeout = None
(Integer) Number of seconds to wait before dispatching samples when batch_size is not reached (None means indefinitely).
event_alarm_topic = alarm.all
(String) The topic that aodh uses for event alarm evaluation.
workers = 1
(Integer) Number of workers for listener service. default value is 1.
[notifier]
 
batch_size = 1
(Integer) Number of notification messages to wait before dispatching them.
batch_timeout = None
(Integer) Number of seconds to wait before dispatching samples when batch_size is not reached (None means indefinitely).
workers = 1
(Integer) Number of workers for notifier service. default value is 1.
[service_credentials]
 
interface = public
(String) Type of endpoint in Identity service catalog to use for communication with OpenStack services.
region_name = None
(String) Region name to use for OpenStack service endpoints.
[service_types]
 
zaqar = messaging
(String) Message queue service type.
Table 7.27. Description of coordination configuration options
Configuration option = Default value
Description
[coordination]
 
backend_url = None
(String) The backend URL to use for distributed coordination. If left empty, per-deployment central agent and per-host compute agent won't do workload partitioning and will only function correctly if a single instance of that service is running.
check_watchers = 10.0
(Floating point) Number of seconds between checks to see if group membership has changed
heartbeat = 1.0
(Floating point) Number of seconds between heartbeats for distributed coordination.
max_retry_interval = 30
(Integer) Maximum number of seconds between retry to join partitioning group
retry_backoff = 1
(Integer) Retry backoff factor when retrying to connect with coordination backend
Table 7.28. Description of Redis configuration options
Configuration option = Default value
Description
[matchmaker_redis]
 
check_timeout = 20000
(Integer) Time in ms to wait before the transaction is killed.
host = 127.0.0.1
(String) DEPRECATED: Host to locate redis. Replaced by [DEFAULT]/transport_url
password =
(String) DEPRECATED: Password for Redis server (optional). Replaced by [DEFAULT]/transport_url
port = 6379
(Port number) DEPRECATED: Use this port to connect to redis host. Replaced by [DEFAULT]/transport_url
sentinel_group_name = oslo-messaging-zeromq
(String) Redis replica set name.
sentinel_hosts =
(List) DEPRECATED: List of Redis Sentinel hosts (fault tolerance mode), e.g., [host:port, host1:port ... ] Replaced by [DEFAULT]/transport_url
socket_timeout = 10000
(Integer) Timeout in ms on blocking socket operations.
wait_timeout = 2000
(Integer) Time in ms to wait between connection attempts.

7.2.2. New, Updated, and Deprecated Options in Ocata for Telemetry Alarming

Table 7.29. New options
Option = default value
(Type) Help string
[api] auth_mode = keystone
(StrOpt) Authentication mode to use. Unset to disable authentication
Table 7.30. New default values
Option
Previous default value
New default value
[api] paste_config
api_paste.ini
/usr/lib/python/site-packages/aodh/aodh/api/api-paste.ini
Table 7.31. Deprecated options
Deprecated option
New Option
[DEFAULT] rpc_thread_pool_size
[DEFAULT] executor_thread_pool_size
[DEFAULT] use_syslog
None
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