Monitoring Amazon IVS Low-Latency Streaming - Amazon IVS
PrerequisitesAccess Stream Session DataFilter Streams by HealthAccess CloudWatch MetricsCloudWatch Metrics: IVS Low-Latency Streaming

Monitoring Amazon IVS Low-Latency Streaming

You can monitor Amazon Interactive Video Service (IVS) resources using Amazon CloudWatch. CloudWatch collects and processes raw data from Amazon IVS into readable, near real-time metrics. These statistics are kept for 15 months, so you can gain a historical perspective on how your web application or service performs. You can set alarms for certain thresholds and send notifications or take actions when those thresholds are met. For details, see the CloudWatch User Guide.

The timestamp on a metric represents the start of the period during which metric data is accumulated. For example, suppose you get a per-minute LiveDeliveredTime metric sum of 300 seconds at 01:02:00. This would mean that 5 minutes’ worth of video was served to viewers during the 1-minute period from 01:02:00 to 01:02:59.

For metrics designated as high resolution, the first data point appears several seconds after stream start. We recommend you specify a 5-second period when making the metric requests. (See Resolution in the Amazon CloudWatch User Guide.) For other metrics, data is emitted within 1 minute of the timestamp to which it refers.

The high-resolution metrics are rolled up over time. Resolution effectively decreases as the metrics age. Here is the schedule:

  • 1-second metrics are available for 3 hours.

  • 60-second metrics are available for 15 days.

  • 5-minute metrics are available for 63 days.

  • 1-hour metrics are available for 455 days (15 months).

For current information on data retention, search for "retention period" in Amazon CloudWatch FAQs.

Prerequisites

Access Stream Session Data

Using the listStreamSessions endpoint, you can access a list of streams that a channel has had for up to 60 days. This list may include a live stream session (denoted by an empty endTime).

You can get the session data for a specific stream through the getStreamSession endpoint. If you do not specify the streamId parameter, the endpoint returns the latest session. In addition, you can periodically call the endpoint to get your stream’s latest events (up to the most recent 500).

Console Instructions

  1. Open the Amazon IVS console.

    (You also can access the Amazon IVS console through the AWS Management Console.)

  2. On the navigation pane, choose Channels. (If the nav pane is collapsed, first open it by choosing the hamburger icon.)

  3. Choose the channel to go to its details page.

  4. Scroll down the page until you see the Stream sessions section.

  5. Select the Stream ID of the session you want to access to view its session details, including charts for the Amazon CloudWatch high-resolution metrics.

Alternatively, if one or more channels are already live:

  1. Open the Amazon IVS console.

  2. On the navigation pane, choose Live channels. (If the nav pane is collapsed, first open it by choosing the hamburger icon.)

  3. Select a live channel from the list to access its session details inside a split view.

AWS SDK Instructions

Accessing stream-session data with the AWS SDK is an advanced option and requires that you first download and configure the SDK on your application. Below are instructions for the AWS SDK using JavaScript.

Prerequisite: To use the code sample below, you need to load the AWS JavaScript SDK into your application. For details, see Getting started with the AWS SDK for JavaScript.

// This first call lists up to 50 stream sessions for a given channel.
const AWS = require("aws-sdk");
const REGION = 'us-west-2';
let channelArn = USE_YOUR_CHANNEL_ARN_HERE;

AWS.config.getCredentials(function(err) {
  if (err) console.log(err.stack);
  // credentials not loaded
  else {
    console.log("Access key:", AWS.config.credentials.accessKeyId);
  }
});

AWS.config.update({region: REGION});
var ivs = new AWS.IVS();

// List Stream Sessions
async function listSessions(arn) {
  const result = await ivs.listStreamSessions({"channelArn": arn}).promise();
  console.log(result.streamSessions);
}
listSessions(channelArn);

// Get Stream Session
async function getSession(arn, id) {
  const result = await ivs.getStreamSession({"channelArn": arn, "streamId": id}).promise();
  console.log(result);

  // This function polls every 3 seconds and prints the latest IVS stream events.
  setInterval(function(){
    console.log(result.streamSession.truncatedEvents);
  }, 3000);
}
getSession(channelArn);

CLI Instructions

Accessing stream-session data with the AWS CLI is an advanced option and requires that you first download and configure the CLI on your machine. For details, see the AWS Command Line Interface User Guide.

  1. List streams sessions:

    aws ivs list-stream-sessions --channel-arn <arn>

  2. Get stream session data for a specific stream using its streamId:

    aws ivs get-stream-session --channel-arn <arn> --stream-id <streamId>

Here is a sample response to the get-stream-session call:

{
    "streamSession": {
        "startTime": "2021-10-22T00:03:57+00:00",
        "streamId": "st-1FQzeLONMT9XTKI43leLSo1",
        "truncatedEvents": [
            {
                "eventTime": "2021-10-22T00:09:30+00:00",
                "name": "Session Ended",
                "type": "IVS Stream State Change"
        	},
            {
                "eventTime": "2021-10-22T00:09:30+00:00",
                "name": "Stream End",
                "type": "IVS Stream State Change"
        	},
        	{
                "eventTime": "2021-10-22T00:03:57+00:00",
                "name": "Stream Start",
                "type": "IVS Stream State Change"
        	},
        	{
                "eventTime": "2021-10-22T00:03:50+00:00",
                "name": "Session Created",
                "type": "IVS Stream State Change"
        	}
        ],
        "endTime": "2021-10-22T00:09:31+00:00",
        "ingestConfiguration": {
            "audio": {
                "channels": 2,
                "codec": "mp4a.40.2",
                "sampleRate": 48000,
                "targetBitrate": 160000
        	},
            "video": {
                "avcLevel": "4.0",
                "avcProfile": "Baseline",
                "codec": "avc1.42C028",
                "encoder": "obs-output module (libobs version 27.0.1)",
                "targetBitrate": 3500000,
                "targetFramerate": 30,
                "videoHeight": 1080,
                "videoWidth": 1920
            }
        },
        "channel": {
            "name": "",
            "ingestEndpoint": "3f234d592b38.global-contribute.live-video.net",
            "authorized": false,
            "latencyMode": "LOW",
            "recordingConfigurationArn": "",
            "type": "STANDARD",
            "playbackUrl": "https://3f234d592b38.us-west-2.playback.live-video.net/api/video/v1/us-west-2.991729659840.channel.dY7LsluQX1gV.m3u8",
            "arn": "arn:aws:ivs:us-west-2:991729659840:channel/dY7LsluQX1gV"
        }
    }
}

Filter Streams by Health

To easily find which streams are experiencing issues, you can use listStreams to filter live streams by “health.”

Console Instructions

  1. Open the Amazon IVS console.

    (You also can access the Amazon IVS console through the AWS Management Console.)

  2. On the navigation pane, choose Live channels. (If the nav pane is collapsed, first open it by choosing the hamburger icon.)

  3. Select the search field for Filter by health.

  4. In the drop-down list, select filtering by Health = STARVING.

After filtering, you can go to a channel’s details page and select the channel’s live-stream session, to access input-configuration details and stream events.

CLI Instructions

Using the AWS CLI is an advanced option and requires that you first download and configure the CLI on your machine. For details, see the AWS Command Line Interface User Guide.

To filter streams by health (e.g. STARVING):

aws ivs list-streams --filter-by health=STARVING

CloudWatch Health Dimension for ConcurrentStreams

You can filter ConcurrentStreams by a specific Health. See CloudWatch Metrics: IVS Low-Latency Streaming.

Access CloudWatch Metrics

Amazon CloudWatch collects and processes raw data from Amazon IVS into readable, near-real-time metrics. These statistics are kept for 15 months, so you can gain a historical perspective on how your web application or service performs. You can set alarms for certain thresholds and send notifications or take actions when those thresholds are met. For details, see the CloudWatch User Guide.

Note that CloudWatch metrics are rolled up over time. Resolution effectively decreases as the metrics age. Here is the schedule:

  • 1-second metrics are available for 3 hours.

  • 60-second metrics are available for 15 days.

  • 5-minute metrics are available for 63 days.

  • 1-hour metrics are available for 455 days (15 months).

When you call getMetricData you can specify a period of 1, 5 (recommended), 10, 30 or any multiple of 60 seconds for high-resolution metrics.

CloudWatch Console Instructions

  1. Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/.

  2. In the side navigation, expand the Metrics dropdown, then select All metrics.

  3. On the Browse tab, using the unlabeled dropdown at the left, select your “home” region, where your channel(s) was(were) created. For more on regions, see Global Solution, Regional Control. For a list of supported regions, see the Amazon IVS page in the AWS General Reference.

  4. At the bottom of the Browse tab, select the IVS namespace.

  5. Do one of the following:

    1. In the search bar, enter your resource ID (part of the ARN, arn:::ivs:channel/<resource id>).

      Then select IVS > By Channel.

    2. If IVS appears as a selectable service under AWS Namespaces, select it. It will be listed if you use Amazon IVS and it is sending metrics to Amazon CloudWatch. (If IVS is not listed, you do not have any Amazon IVS metrics.)

      Then choose a dimension grouping as desired; available dimensions are listed in CloudWatch Metrics below.

  6. Choose metrics to add to the graph. Available metrics are listed in CloudWatch Metrics below.

You also can access your stream session’s CloudWatch chart from the stream session’s details page, by selecting the View in CloudWatch button.

CLI Instructions

You also can access the metrics using the AWS CLI. This requires that you first download and configure the CLI on your machine. For details, see the AWS Command Line Interface User Guide.

Then, to access Amazon IVS low-latency streaming metrics using the AWS CLI:

  • At a command prompt, run: 

    aws cloudwatch list-metrics --namespace AWS/IVS

For more information, see Using Amazon CloudWatch Metrics in the Amazon CloudWatch User Guide.

CloudWatch Metrics: IVS Low-Latency Streaming

Amazon IVS provides the following metrics in the AWS/IVS namespace.

Metric Dimension Description

ConcurrentViews

 None

A count of concurrent views across all your live channels. A view is a unique viewing session which is actively downloading or playing video. (For a more detailed definition, see the IVS Glossary.) If channels are live but in aggregate have no views, the value of this metric is 0. If no channels are live, the metric has no data points.

Unit: Count

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of concurrent views over the configured interval.

ConcurrentViews

Channel

Filters ConcurrentViews by channel ARN. If a channel is live but has no views, the value of this metric is 0. If a channel is not live, the metric has no data points.

This metric provides data for a channel, not a stream. To see concurrent views for a particular streaming session on a given channel, evaluate the ConcurrentViews metric for that channel between the start and end times of the streaming session.

Unit: Count

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of concurrent views over the configured interval.

ConcurrentStreams

 None

A count of your channels which are streaming live. If no channels are live, this metric has no data points.

Unit: Count

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of concurrent streams over the configured interval.

ConcurrentStreams

Health

Filters ConcurrentStreams by channel health. If no channels are live, this metric has no data points.

Unit: Count

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of concurrent streams for a specific Health over the configured interval.

IngestAudioBitrate

Channel

(High-resolution metric) The amount of audio data Amazon IVS receives when you stream. A higher bitrate takes up more of your available internet bandwidth.

Unit: Bits/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest audio bitrates over the configured interval

IngestAudioBitrate

Channel, Track

(High-resolution metric) The amount of audio data Amazon IVS receives when you stream. A higher bitrate takes up more of your available internet bandwidth.

Unit: Bits/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest audio bitrates over the configured interval

IngestBitrate

Channel

(High-resolution metric) The amount of video, audio and metadata (summed over all tracks) Amazon IVS receives when you stream. A higher bitrate takes up more of your available internet bandwidth.

Unit: Bits/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest bitrates over the configured interval

IngestFramerate

Channel

(High-resolution metric) How often video frames are received by Amazon IVS when you stream.

Unit: Count/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest framerates over the configured interval

IngestFramerate

Channel, Track

(High-resolution metric) How often video frames are received by Amazon IVS when you stream.

Unit: Count/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest framerates over the configured interval

IngestVideoBitrate

Channel

(High-resolution metric) The amount of video data Amazon IVS receives when you stream. A higher bitrate takes up more of your available internet bandwidth. Higher bitrate can improve video quality, but only up to a certain point.

Unit: Bits/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest video bitrates over the configured interval

IngestVideoBitrate

Channel, Track

(High-resolution metric) The amount of video data Amazon IVS receives when you stream. A higher bitrate takes up more of your available internet bandwidth. Higher bitrate can improve video quality, but only up to a certain point.

Unit: Bits/second

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of ingest video bitrates over the configured interval

KeyframeInterval

Channel

(High-resolution metric) The point in the video stream where the entire frame is sent instead of just the differences from the previous frame.

Unit: Seconds

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of keyframe intervals over the configured interval

KeyframeInterval

Channel, Track

(High-resolution metric) The point in the video stream where the entire frame is sent instead of just the differences from the previous frame.

Unit: Seconds

Valid statistics: Average, Maximum, Minimum — Average number, largest number, or smallest number (respectively) of keyframe intervals over the configured interval

LiveDeliveredTime

 None

Total real-time duration of video served to all viewers.

Unit: Seconds

Valid statistic: Sum

LiveDeliveredTime

Channel

Filters LiveDeliveredTime by channel. Channel values are the channel's resource-id, which is the last part of an ARN.

Unit: Seconds

Valid statistic: Sum

LiveDeliveredTime

Channel, ViewerCountryCode

Filters LiveDeliveredTime by channel and viewer’s country code. Channel values are the channel's resource-id, which is the last part of an ARN. Country values are two-character ISO 3166-1 country codes. This allows you to answer the question: where are my viewers watching from? If the viewer’s country cannot be determined, it is shown as UNKNOWN.

Unit: Seconds

Valid statistic: Sum

LiveInputTime

 None

Real-time duration of video stream.

Unit: Seconds

Valid statistic: Sum

LiveInputTime

Channel

Filters LiveInputTime by channel. Channel values are the channel's resource-id, which is the last part of an ARN.

Unit: Seconds

Valid statistic: Sum

RecordedTime

 None

Real-time duration of recorded video.

Unit: Seconds

Valid statistic: Sum

RecordedTime

Channel

Filters RecordedTime by channel. Channel values are the channel's resource-id, which is the last part of an ARN.

Unit: Seconds

Valid statistic: Sum