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chaley · 04-19-2014, 05:06 AM

This has been an interesting bit of analysis.

The bottom line: both sides think that the other side went away. Calibre says that CC received a message then didn't respond correctly. CC says that it did respond to that message, then calibre simply disconnected.

My guess is that there was a "network event" that broke the connection. Possibilities in no particular order:

Your device momentarily lost contact with your wifi router.
Your device went to sleep (although CC tries to prevent this).
Your machine running calibre momentarily lost contact with your network.
A bug in Android's or your calibre machine's networking code that caused an empty packet to go from CC to calibre (this is unlikely).
A bug in the client networking libraries that caused an empty packet to go from CC to calibre (also unlikely).

Thanks again for sending these logs to me. If nothing else I am learning where we need to improve logging.

BTW: you are not running the latest CC, V3.3.4. There aren't many changes between V3.3.3 and V3.3.4 so updating isn't urgent, but it is worth doing.

04-19-2014, 05:06 AM	#8
chaley Grand Sorcerer Posts: 12,475 Karma: 8025702 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	This has been an interesting bit of analysis. The bottom line: both sides think that the other side went away. Calibre says that CC received a message then didn't respond correctly. CC says that it did respond to that message, then calibre simply disconnected. My guess is that there was a "network event" that broke the connection. Possibilities in no particular order: Your device momentarily lost contact with your wifi router. Your device went to sleep (although CC tries to prevent this). Your machine running calibre momentarily lost contact with your network. A bug in Android's or your calibre machine's networking code that caused an empty packet to go from CC to calibre (this is unlikely). A bug in the client networking libraries that caused an empty packet to go from CC to calibre (also unlikely). Thanks again for sending these logs to me. If nothing else I am learning where we need to improve logging. BTW: you are not running the latest CC, V3.3.4. There aren't many changes between V3.3.3 and V3.3.4 so updating isn't urgent, but it is worth doing.