Appendix: Cisco Media Broadcaster Log Files

This chapter provides information on the log file and stats file for the Multicast Controllers and Multicast Senders. These files can help you gather statistics for and troubleshoot the Media Broadcaster deployment.

Log File Locations

The log file for the Multicast Controller is located in the /var/log/Broadcaster/MulticastController directory.

All of the log files for the Multicast Sender are located in the /var/log/Broadcaster/ directory:

  • The log file for the MC-Sender interface is located in the /var/log/Broadcaster/MulticastServerInterface directory and is named msi.log.

  • The log file for the multicast sender manager is located in the /var/log/Broadcaster/MulticastSenderManager directory and is named msm.log.

  • The log files for the multicast sender application are located in the /var/log/Broadcaster/MulticastSenderApplication directory and all of the files end in .log. Each multicast sender application instance will have its own log file. The name of the log file will include the Source IP address for the multicast sender application instance.

Media Broadcaster Statistics: Multicast Receiver

Statistics are written to a log file on the Multicast Receiver and sent to the Multicast Controller, via a StreamStatus message. How often the Multicast Receivers of a broadcasting group send this information to the Multicast Controller is determined by the Stream Status Interval setting of the Multicast Receiver (also referred to as the Embedded Multicast Controller). By default this is 5 minutes. This information can help you gather statistics for and troubleshoot the Media Broadcaster deployment.

The MC-Controller stores the statistics it collects from the Multicast Receivers in the /var/log/Broadcaster/MulticastController/ssr.log file. This file contains the following fields:

  • id: The device identifier of the Multicast Receiver

  • chn: The stream being consumed by the player(s) behind Multicast Receiver

  • mcast: The total number of bytes received from multicasting on the Multicast Receiver, including FEC parity symbol bytes and info message bytes

  • ucast: The number of bytes received from unicasting on the Multicast Receiver

  • cH: The number of bytes cached for the stream, including unicast

  • eF: The number of bytes fixed by FEC

  • eR: The number of bytes fixed with range request

  • eM: The number of bytes that cannot be fixed by either FEC or range request

  • cMcast: The actual bytes received via multicast that are written to the disk

  • format: The video format, such as HLS or DASH

  • dState: How the Multicast Receiver receives the stream when the message was sent

Media Broadcaster Statistics: Multicast Sender

The Multicast Sender Manager generates additional statistics in the /var/log/Broadcaster/MulticastSenderManager/msm.log file. This information can help you gather statistics for and troubleshoot the Media Broadcaster deployment.

This file contains the following fields:

  • url: The stream currently being multicasted

  • bps: The number of bytes being multicasted during this interval

  • ft: How long it took to retrieve the last segment

  • p: The number of segments purged

  • s: The number of segments skipped

  • sf: The number of segments that failed to be fetched

  • mf: The number of manifest files that failed to be fetched

  • chn: The channel name of the stream being ingested

  • repid: The Representation ID of the channel being ingested