Thread: Directory mixup
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Old 09-21-2020, 07:05 AM   #9
chaley
Grand Sorcerer
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Posts: 12,476
Karma: 8025702
Join Date: Jan 2010
Location: Notts, England
Device: Kobo Libra 2
Quote:
Originally Posted by cns1000 View Post
But the move stopped for no apparent reason and with no error message with 697 files left to transfer and 12648 in the target directory. Tried restarting, as well as restarting the Android; still no go.
It seems you have hit the FAT32 number of files limit. The max number of files depends on the average length of the file name. For example, if the average length is in the 65 character range then the max number of files will be around what you see. It will also be *painfully slow*.
Quote:
Renamed the source directory though there were still files left in it and restarted CC, and it seems to see the new directory ok (maybe it remembers the folder reset operation I interrupted), but it has not updated itself to see the new files. Which I can see because it has not updated the file counts or tag counts in its database.
Were all those books in the CC database before you tried the move? CC doesn't look for new files, except for epubs when you use the wireless connection.
Quote:
So maybe there is some directory size limit there that I have hit. Let me know if there are workarounds (have not had time yet to check the link you sent, but I will do so. Will be away for the next couple of days so I do not have more time to play with this now).
Yes, there is a limit. Yes, you appear to have hit it. And yes, there are workarounds. See the link.
Quote:
Questions:

what is the practical limit on number of books for CC ?
I have seen as many as 30,000. 10,000 to 15,000 was relatively common. There is no built-in limit, but eventually CC will run out of memory and/or performance will be terrible.
Quote:
is there any way of getting it to recognize subdirectories, to avoid this problem with large directories ? Other than, which I suppose is an option, storing different formats in different folders ?
See the link I sent earlier.
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