Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit

Question

My core.log file keeps showing these errors everytime I start to stream. My streams are not viewable on PC's and only viewable on iOS devices.

Is there something wrong with the libf4f.dll file? I'm using FMS 4.5 on Windows 2003 Server.

2011-12-28 15:44:09 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 15:44:09 4020 (e)2611423 Failed to record bbc2011-BBC73 (Unknown Error). -

2011-12-28 16:02:00 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 16:02:00 4020 (e)2611423 Failed to record bbc2011-BBC71 (Unknown Error). -

2011-12-28 16:57:12 4020 (e)2611363 Server detected a backward timestamp from 5006873 to 0 in file: C:\FMSHOME\applications\livepkgr\streams\_definst_\bbc2011

2011-12-28 17:18:21 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 17:18:21 4020 (e)2611423 Failed to record bbc2011-BBC83 (Unknown Error). -

2011-12-28 17:36:12 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 17:36:12 4020 (e)2611423 Failed to record bbc2011-BBC81 (Unknown Error). -

2011-12-28 18:38:09 4020 (e)2611363 Server detected a backward timestamp from 5420086 to 0 in file: C:\FMSHOME\applications\livepkgr\streams\_definst_\bbc2011-BBC82 -

2011-12-28 19:12:44 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 19:12:44 4020 (e)2611423 Failed to record bbc2011-BBC92 (Unknown Error). -

2011-12-28 19:23:38 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 19:23:38 4020 (e)2611423 Failed to record bbc2011-BBC91 (Unknown Error). -

2011-12-28 20:41:50 4020 (e)2611363 Server detected a backward timestamp from 6390123 to 0 in file: C:\FMSHOME\applications\livepkgr\streams\_definst_\bbc2011-BBC93 -

2011-12-28 21:12:05 4020 (e)2611178 Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 21:12:05 4020 (e)2611423 Failed to record bbc2011-BBC102 (Unknown Error). -

2011-12-28 22:49:23 4020 (i)2581247 Core (4020) disconnected from edge. -

2011-12-28 22:49:23 4020 (i)2581233 Core (4020) disconnecting from admin: 200. -

Thanks,

Dave

Anonymous · Answer

There is a concept of Absolute Time Code which enables the encoders to publish the livestream based on absolute system time rather than starting the messages from timestamp 0 everytime you append to a recording.

I suspect you encoder is starting everytime from 0 timestamp but since the server already has recording till some time - say x, for the server these are backward timestamps and hence the continous warnings.

Also to safeguard FMS against such conditions and cause memory crashes, we only allow messages with backward timestamps to accumulate in the process queue upto a limit and then the recording is stopped. Thats why you are observing the errors -

"Error from libf4f.dll: Total number of messages waiting to be recorded has exceeded the limit. -

2011-12-28 19:23:38 4020 (e)2611423 Failed to record bbc2011-BBC91 (Unknown Error). -"

Try to check your encoder settings for stream synchronization or ATC settings and enable them.

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