Random, unpredictable failure to connect - Page 3

DoctorOhh · 07-23-2015, 12:58 AM

Quote:

Originally Posted by NSILMike

Sorry but no, again. I've been doing this for quite awhile. These are not changed books, they are new books. They have never auto sync'd. Go ahead and reply if you like, but I'm done.

I stand corrected I thought the books you were referring to were downloaded by calibre "Fetch news" feature. Which downloads news items, places them in a book then auto syncs those books when a device is attached.

chaley · 07-23-2015, 03:19 AM

Some clarifications are probably in order.

Fetching news and "Connect/Sync books" have little to do with each other. Fetching news is totally controlled by calibre. When a device connects, calibre sends the news. The device has no choice. It receives books.

Sync books is a wireless device feature where the device (CC) asks calibre to compare the time stamps for book files in the library with the time stamps that CC has. If the calibre time stamp is newer then calibre sends the book to the device, otherwise nothing happens. By definition this works only with books already on the device. The process does not care how that book got there, so news "books" in calibre will be checked and resent if the file in calibre is newer than the file in CC.

Further, the sync books feature doesn't interact with connections. CC first connects. Once the connection is successful it tells calibre that it wants to do the time stamp checks. In other words, CC will get to "Seeing what metadata calibre needs" before sync books has any effect on the process.

It is true that sync books can interact with news because the "news books" are just books, subject to the same rules as any other book. If calibre changes the file when news is fetched instead of creating a new book then things might get confused. I am not sure which would happen first, the book sync or the news auto-send.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Find unpredictable	mrmikel	Editor	0	04-25-2014 09:44 AM
"Pick Random Book" - not so random??	Chris_Snow	Library Management	3	09-15-2013 06:44 PM
Page refresh on kindle unpredictable	sucah	Amazon Kindle	3	10-28-2011 01:50 AM
Random page breaks and random subscripts?	sark666	Kobo Reader	2	09-04-2010 02:25 AM

07-23-2015, 03:19 AM	#32
chaley Grand Sorcerer Posts: 12,445 Karma: 8012886 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Some clarifications are probably in order. Fetching news and "Connect/Sync books" have little to do with each other. Fetching news is totally controlled by calibre. When a device connects, calibre sends the news. The device has no choice. It receives books. Sync books is a wireless device feature where the device (CC) asks calibre to compare the time stamps for book files in the library with the time stamps that CC has. If the calibre time stamp is newer then calibre sends the book to the device, otherwise nothing happens. By definition this works only with books already on the device. The process does not care how that book got there, so news "books" in calibre will be checked and resent if the file in calibre is newer than the file in CC. Further, the sync books feature doesn't interact with connections. CC first connects. Once the connection is successful it tells calibre that it wants to do the time stamp checks. In other words, CC will get to "Seeing what metadata calibre needs" before sync books has any effect on the process. It is true that sync books can interact with news because the "news books" are just books, subject to the same rules as any other book. If calibre changes the file when news is fetched instead of creating a new book then things might get confused. I am not sure which would happen first, the book sync or the news auto-send.

Advert