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logs
---- gc-core.log.0
---- gc-core.log.1
---- gc-core.log.2.current

Mediasessions statistics logs

Since build 5.2.1883a current mediasessions statistics may be collected. The statistics may be logged to save it to a file when mediasession is closed.

The mediasessions statistics is logged to the /usr/local/FlashphonerWebCallServer/logs/stats/media-session-connection-stats.log file in CSV form

#{mediaSessionId}; {channels_not_writable}; {decodable_drops_old}; {incomplete_drops_old}; {decodable_drops_reset}; {incomplete_drops_reset}; {decodable_drops_pli}; {incomplete_drops_pli}; {data_packets_with_empty_payload}; {missed_h264_units}; {dropped_audio_data_packets}

Where

• mediaSessionId - mediasession id
• channels_not_writable - TCP channels not writable events count
• decodable_drops_old - H264 decodable frames dropped count
• incomplete_drops_old - H264 incomplete frames dropped count
• decodable_drops_reset - H264 decodable frames dropped before a new decoding point count
• incomplete_drops_reset - H264 incomplete frames dropped before a new decoding point count
• decodable_drops_pli - H264 decodable frames dropped on PLI receiving count
• incomplete_drops_pli - H264 incomplete frames dropped on PLI receiving count
• data_packets_with_empty_payload - data packets with empty payload sent to test a channel quality when TWCC is enabled count
• missed_h264_units - missed H264 units count, per mediasession
• dropped_audio_data_packets - audio packets dropped before passing them to server engine

The record example

f49f8cb0-dc52-11ee-81df-51ad589334c0; 0; 0; 7; 0; 0; 0; 10; 0; 443; 0

The statistics logging should be set up in log4j.properties file as follows

log4j.logger.MediaSessionConnectionStats=error, mediaSessionConnectionStatsAppender
log4j.additivity.MediaSessionConnectionStats=false
log4j.appender.mediaSessionConnectionStatsAppender=com.flashphoner.common.logging.NewLogForEachRunFileAppender
log4j.appender.mediaSessionConnectionStatsAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.mediaSessionConnectionStatsAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.mediaSessionConnectionStatsAppender.layout.ConversionPattern=%m%n
log4j.appender.mediaSessionConnectionStatsAppender.File=${com.flashphoner.fms.AppHome}/logs/stats/media-session-connection-stats.log

CVE-2021-44228 vulnerability

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