Start/stop/restart live stream - do stream files need to be removed first?

When streaming a live event if something happens and we need to stop our encoder and then restart it again.
Do we need to delete the stream files created in the 'application/event/' directory and also delete the f4f stream,bootstrap, etc... files too?
If we don't delete the stream files before restarting the live stream. It will only play about 10 seconds of the stream then just hang buffering.
What is causing this?
My application log shows no access when I restarted the stream.
2013-09-04
09:02:21
3960
(s)2641173
onPublish : cfhsstream4
2013-09-04
09:02:21
3960
(s)2641173
Stream name is: cfhsstream4 and live event is: cfhs
2013-09-04
09:02:21
3960
(i)2611173
Event level recording configuration: General[flags: 3, keyframe interval: 60000, max size: -1, max length: -1, io buffer size: 0], Fragment[frag duration: 4000, seg duration: 0, duration precision: 0, allowed drift: 1000, frame rate: 0.000000, frames per interval: 0, intervals per frag: 1, frame precision: 1, disk management duration: 0.000000], ContentProtection[enabled=false(overridable)]
2013-09-04
09:02:21
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Publish.Start
2013-09-04
09:02:21
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Play.Reset
2013-09-04
09:02:21
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Data.Start
2013-09-04
09:02:22
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Record.Start
2013-09-04
09:02:23
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Record.NoAccess
2013-09-04
09:02:23
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Record.Stop
2013-09-04
09:02:23
3960
(s)2641173
f4f:cfhsstream4 - NetStream.Record.NoAccess
Thanks,
Dave

I have a similar issue like Mr Dave explained. If need to stop, start, stop and restart again, the encoder is sending, but in player not shows nothing. Then we need to stop and disconnect in encoder, and remove the stream file in /event and the cache files in livestream folder for after then restart the streaming. Only after this action, the streaming works fine and the streaming shows again in player.
Have other way to solve this issue without need all that actions? Note that I use the Adobe FME to live streaming and encoding in HDS http streaming
I hope for a help
Thanks
Pedro
Message was edited by: asaweb2013

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Start/stop/restart live stream - do stream files need to be removed first?

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