Status:

Goals

Organize all alert metadata (policy/stream/alerts) and data with siteId.
Support both application-provided and customized streams.
Support to onboard customized alerting use case without programing.

Improvements

EIP-12.1 [UI] Add site group/filter for policy definition and remove inputstreams column
EIP-12.2 [UI] Reorganize alert metadata like policy/stream, etc. by siteId.

EIP-12.3 [UI&Backend] Support customized stream.

API: POST /rest/metadata/streams/create

{
  "streamSource": {
    "properties": {
      "spout.kafkaBrokerZkQuorum": "localhost:2181",
	  "spout.kafkaBrokerZkBasePath": "/brokers"
    },
    "topic":"DATA_STREAM_SANDBOX_TOPIC",
    "schemeCls": "org.apache.eagle.alert.engine.scheme.JsonScheme",
    "codec": {
    	"timestampColumn": "timestamp"
  	}
  },
  "streamDefinition": {
    "streamId": "DATA_STREAM_SANDBOX",
    "description": "A sample data stream",
    "validate": false,
    "timeseries": true,
    "siteId": "sandbox",
    "columns": [
      {
        "name": "timestamp",
        "type": "LONG",
        "defaultValue": null,
        "required": true
      },
      {
        "name": "value",
        "type": "DOUBLE",
        "defaultValue": null,
        "required": false
      }
    ]
  }
}

UI:
- Add "Create Stream" Button
- Add "Stream Editor" Form with following fields
  - SiteId
  - StreamId
  - Description
  - Timeseries
  - Columns
    - Name
    - Type
    - DefaultValue
    - Required or not
    - Description
  - Source
    - Type: Kafka
    - Topic: "kafka_topic_name"
    - Schema: JSON
    - Timestamp Column
    - Timestamp Format
    - Zookeeper Quoram
    - Zookeeper Base Path

EIP-12.4 [UI] Improve stream filter by siteId in policy editor page and auto fill siteId in metadata
- Select current siteId -> streams by siteId -> define policy with siteId
EIP-12.5 [BUG] Fix alert API call with startTime and endTime instead of alertId only.
EIP-12.6 [UI] Add simple alerts statistics dashboard upon alert list in Stacked Trend Chart
EIP-12.3 [Backend] Make sure alert engine instance dedicated per site