Monitor Wowza ClearCaster live stream health

This article describes how to view details about your Wowza ClearCaster™ broadcasts and ensure that the live stream is healthy.

Note: To view details about the ClearCaster live stream, you must Create a Wowza ClearCaster Live Stream for Facebook Live to connect the stream to the Facebook Live API. You can view the stream details described in this article while previewing the broadcast and make any necessary adjustments to help ensure the stream is healthy before going live. You can also monitor the stream health while your broadcast is live.

About Wowza ClearCaster stream health metrics


The Monitoring feature in Wowza ClearCaster provides the following information about the health of the stream:

  • Input and Output. Resolution of the source video ingested by the ClearCaster (Input) and delivered to Facebook (Output).
  • Bitrate. The Target bitrate is the total bitrate of the stream, in kilobits per second (kbps), that Facebook expects the ClearCaster to delivered. This assumes unlimited bandwidth is available. However, the ClearCaster monitors network conditions and will throttle the bitrate delivered to Facebook as conditions change in order to prevent video data from being lost—the bitrate we attempt to send is the Available bitrate. To make sure you know the bitrate we are successfully sending, we also provide the Actual bitrate.
  • Bytes Waiting. On congested networks, the amount of video data (in bytes) that the ClearCaster has queued in a buffer to send to Facebook. On fast networks with lots of available bandwidth, the value displayed is typically 0 because the video data is delivered to Facebook immediately.
  • Network Ping. Elapsed time (in milliseconds) for the ClearCaster device to receive a response to a ping Echo Request it sends to the Facebook ingestion point. This metric can be used to test ClearCaster-to-Facebook connectivity and to determine response time.
  • CPU. ClearCaster CPU usage (in percent).
  • For broadcasts, the following Facebook stream health metrics are also provided:
    • Input. The size and actual frames per second of the stream that Facebook is ingesting.
    • Bitrate. The Current bitrate, as Facebook is ingesting it, in kilobits per second (kbps).
Note: To view Input and Output video resolution on the ClearCaster LCD, do the following:
  1. Use the LCD menu button controls to navigate to the Stream Menu.
  2. From the Stream Menu, select Stream Health.

Monitor stream health data in Wowza ClearCaster Manager


In Wowza ClearCaster Manager, data about your broadcasts and stream health is available in three places:

  • On the ClearCasters page
  • On the Broadcasts page
  • On the broadcast details page

On the ClearCasters page

  1. Sign in to Wowza ClearCaster Manager with your Wowza account.
  2. Make sure that the ClearCaster device has connected a live video stream to the Facebook Live API.
  3. Click on the ClearCasters tab and find the ClearCaster device for which you want to see stream health information. When a broadcast is live, the number of viewers and comments is displayed. 
  4. Click Monitoring. This opens the Monitoring dialog with the details about your live stream.

On the Broadcasts page

  1. Sign in to Wowza ClearCaster Manager with your Wowza account.
  2. Make sure that the ClearCaster device has connected a live video stream to the Facebook Live API.
  3. Click on the Broadcasts tab and then find the broadcast for which you want to see the stream health information in the list of broadcasts. Live broadcasts are listed at the top of the page.
  4. Details are displayed on the right of the page for each broadcast that is live or in preview. If you're using redundancy, details for both streams are displayed as well as an indicator of which ClearCaster is active. 

On the broadcasts details page

  1. Sign in to Wowza ClearCaster Manager with your Wowza account.
  2. Make sure that the ClearCaster device has connected a live video stream to the Facebook Live API.
  3. Click on the Broadcasts tab and then find the broadcast for which you want to see the stream health information in the list of broadcasts, and click Edit.
  4. On the broadcast details page, click on Monitoring

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