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products:promonitor:6.8:userguide:api:events

Monitoring

The endpoints described below allow to get information about the monitored systems as well as generated metrics and alarms.

Note: Those endpoints are only available if the Generic event server plugin is active.

How to use the API

API call

Once the plugin is configured and active, alerts, metrics and monitored infrastructure will be available through the API.

1. Start by discovering the monitored landscapes 
2. Poll regularly alarms and metrics queues. We recommend to poll the queues every minute.
3. Refresh landscape metadata once per hour

Alarms and metrics correlation

  • Generated alarms and metrics will correlate with discovered groups, systems and instances.
  • For each alarm and metric, three parameters can be used to correlate it to a component of the landscape:
    • The groupUUID parameter will match the UUID of a discovered group.
    • The sid parameter will match the sid of a system
    • The instance parameter will match the name of an instance.

Landscape

This endpoint will return information about monitored systems, such as properties, instances, types, etc…

Landscape
Description Retrieve information about monitored systems
Method GET
URL /api/v1/monitoring/landscapes
Parameters
None
Example
GET /api/v1/monitoring/landscapes

Usage

  • Monitored landscape architecture is not supposed to change very often.
  • Therefore it is probably not necessary to poll it more than once every hour.

Response

  • The service returns a JSON table of monitored groups, systems and instances
  • Groups will contain systems, which will contain instances

Group structure format:

Parameter Description Type
name name of the group String
uuid unique identifier of the group String
systems the systems belonging to the group Table

System structure format:

Parameter Description Type
sid SID of the system as defined in the configuration String
realSid SID of the system as discovered String
type Type of the system String
uuid unique identifier of the system String
description description of the system String
instances the instances belonging to the system Table
properties properties of the system depending on the context Table

Instance structure format:

Parameter Description Type
name name of the instance String
type Type the instance String
host hostname String

Alarms

Alarms queue size

Get number of alarms to collect
Description Returns the size of the alarm queue
Method GET
URL /api/v1/monitoring/alarms/size
Response An integer value
Example
GET /api/v1/monitoring/alarms/size

Alarms queue

This endpoint will return a chunk of generated alarms. To call this endpoint with a POST method will remove alarms from the queue, this is the recommanded way.
You can also call this endpoint with a GET method, this will just list the alarms from the queue. Intended for testing only, as alarms may fill up the queue rather quickly

Collect alarms
Description Collects the alarms and remove them from the queue
Method POST
URL /api/v1/monitoring/alarms
Parameters
maxchunksize The max number of alarms to return (default 100) optional
Example
POST /api/v1/monitoring/alarms?maxchunksize=1000

Usage

  • It is advised to poll the queue often with small chunks
  • We recommend a poll period of 60 sec.
  • If the amount of returned alarms is equal to the max size of the chunk, it means that more alarms can be fetched and another call can be triggered.

Response

  • The service returns a JSON table of alarms

Alarm structure format:

Parameter Description Type Always set
id The identifier of a unique alarm/problem (1) String Yes
module The monitored module String Yes
metric The monitored metric String No
source The source being monitored String Yes
sid the SID of the system being monitored String Yes
groupName the name of the group containing the system String Yes
groupUUID the unique identifier of the group String Yes
connectorId the id of the connector used to connect to the system Number Yes
message the alarm message String Yes
severity the severity of the alarm String Yes
severityId the id of the severity Number Yes
toClear Set to true if the alarm must be cleared (2) Boolean Yes
clearable Set to true if the alarm can ever be cleared (3) Boolean Yes
instance The instance for which the alarm occurred, if relevant String No
client The ABAP client for which the alarm occurred, if relevant String No
user The user for which the alarm occurred, if relevant String No
component A component name for which the alarm occurred, if relevant String No
host The host on which the alarm occurred, if relevant String No
  • (1): Same problem on same resource gets same id.
  • (2): If set to true, the severity will represent the last generated one before the alarm was cleared.
  • (3): Some problems are events that cannot be “undone”, so the alert will always stay.

Note: Undocumented parameters are not to be used.

Metrics

Metric queue size

Get the number of metrics waiting to be collected from the queue

Get size of the metric queue
Description Collects the metrics and remove them from the queue
Method GET
URL /api/v1/monitoring/metrics/size
Response An integer value
Example
GET /api/v1/monitoring/metrics/size

Metrics queue

This endpoint returns a chunk of generated metrics. To collect metrics will remove them from the queue.

Collect metrics
Description Collects the metrics and remove them from the queue
Method POST
URL /api/v1/monitoring/metrics
Parameters
maxchunksize The max number of metrics to return (default 100) optional
Example
POST /api/v1/monitoring/metrics?maxchunksize=1000

Usage

  • It is advised to poll the queue often with small chunks
  • We recommend a poll period of 60 sec.
  • If the amount of returned metrics is equal to the max size of the chunk, it means that more metrics can be fetched and another call can be triggered.

Response

  • The service returns a JSON table of metrics

Metric structure format:

Parameter Description Type Always set
module The monitored module String Yes
metric The monitored metric String No
source The source being monitored String Yes
sid the SID of the system being monitored String Yes
groupName the name of the group containing the system String Yes
groupUUID the unique identifier of the group String Yes
connectorId the id of the connector used to connect to the system Number Yes
value The value of the metric Number/Boolean Yes
unit The unit of the metric String Yes
unitShort The short representation of the unit String Yes
target The target resource for this metric (1) String Yes
hasMax If true, indicates that the metric cannot exceed sampleMax value Boolean Yes
sampleMax The maximum value reachable by the metric (2) Number No
instance The instance for which the metric is generated String No
client The ABAP client for which the metric is generated String No
user The user for which the metric is generated String No
component A component name for which the metric is generated String No
host The host on which the metric is generated String No
  • (1): Represents the resource being 'measured', by example Disk C:, User X
  • (2): For percent, sampleMax is 100. To use only if hasMax is set.

Note: Undocumented parameters are not to be used.

/home/clients/8c48b436badcd3a0bdaaba8c59a54bf1/wiki-web/data/pages/products/promonitor/6.8/userguide/api/events.txt · Last modified: 2023/11/10 14:15 by rbariou