Log Service (SLS)

Procedure

1. Log on to the EventBridge console. In the left-side navigation pane, click Event Streams.

2. In the top navigation bar, select a region and click Create Event Stream.

3. In the Create Event Stream panel, set Task Name and Description, configure the following parameters, and then click Save.

   • Task creation

     1. In the Source step, set Data Provider to Simple Log Service, configure the following parameters, and then click Next Step.

        Parameter	Description	Example
        Project	Select the project that you created in Log Service (SLS).	test-project
        Logstores	Select the Logstore that you created in Log Service (SLS).	test-Logstore
        Consumer Offset	The position to start consuming events. You can select Earliest Offset, Latest Offset, or Specified Time (a Unix timestamp in seconds).	Latest Offset
        Role	The role that EventBridge uses to read log content from SLS. For information about the required permission policy, see Create a custom event source for Log Service (SLS).	testRole
        Messages	The maximum number of messages in each batch. A request is sent only when the number of accumulated messages reaches this value. The value must be an integer from 1 to 10,000.	100
        Interval (Unit: Seconds)	The interval at which to send aggregated message batches. The value must be an integer from 0 to 15. A value of 0 indicates no delay.	3

     2. In the Filtering, Transformation, and Sink steps, configure the event filter, transformation rules, and event target. For information about how to configure event transformation, see Use Function Compute for data cleansing.

   • Task properties

     Configure the retry policy and dead-letter queue for the event stream. For more information, see Retry policies and dead-letter queues.

4. Return to the Event Streams page. Find the event stream that you created, and in the Actions column, click Enable.

   It takes 30 to 60 seconds to enable the event stream. You can view the startup progress in the Status column on the Event Streams page.

Sample event

{
    "datacontenttype": "application/json;charset=utf-8",
    "aliyunaccountid": "175299981560****",
    "data": {
        "key1": "value1",
        "key2": "value2",
        "__topic__": "test_topic",
        "__source__": "test_source",
        "__client_ip__": "122.231.XX.XX",
        "__receive_time__": "1663487595",
        "__pack_id__": "59b662b2257796****"
    },
    "subject": "acs:log:cn-qingdao:175299981560****:project/qiingdaoproject/logstore/qingdao-logstore-1",
    "aliyunoriginalaccountid": "175299981560****",
    "source": "test-SLS",
    "type": "sls:connector",
    "aliyunpublishtime": "2022-09-18T07:53:15.387Z",
    "specversion": "1.0",
    "aliyuneventbusname": "qingdaoBus",
    "id": "qiingdaoproject-qingdao-logstore-1-1-MTY2MzExODM5ODY4NjAxOTQyMw****",
    "time": "2022-09-18T07:53:12Z",
    "aliyunregionid": "cn-qingdao",
    "aliyunpublishaddr": "10.50.XX.XX"
}

For an explanation of the parameters defined in the CloudEvents specification, see Event overview.

The following table describes the parameters in the data field. Parameters that start and end with __ are SLS system fields. For more information, see Reserved Fields.