BUG: Zip archival is still faulty for large archives.

Scrivener Windows Beta (Archived)
1

I took my huge project, and again attempted to back it up with Scrivener (Using File -> Back Up ->Back Up Now…).

The resulting archive is 30 MB larger than any of the prior two tests (on V19 & 20). However, the “backup file” contains errors, and is likely unusable.

Here’s a screen shot from 7zip’s archive test:

Scriv_b21_zipfaults.PNG
Scriv_b21_zipfaults.PNG830×591 14.4 KB

Further, the zip file SHOULD be near 5.33 GB in size, not 4.1 GB.

In addition, while the “backup” was occurring, I happened to monitor Windows’ Temp directory and Task Manager, and some process was writing a 0 byte file there, and during those writes it’s writing to disk (monitored in Task Manager)(filename: “jet” followed by 4 hexadecimal characters, “.tmp”).

Scriv also evidently writes other “jet” files, all empty: Jet1.tmp, jet2.tmp, jet3.tmp. jet3 appeared when the archive was 90% done or so.

Also, randomly during the backup process, the little progress dialog window disappears completely, and then, some dozens of seconds later, reappears.

I ran the thing a second time, and this time, it produced NO output. NO file.

I know the devs replaced the zip algorithm, but it’s still broken for large (>4GB) output files.

2

Where do you see that they replaced the zip library again since the fix for epub generation? That would have beta 20 IIRC.

3

That’s the one I’m referring to. This issue with large zip files is not new. I thought (silly me) that while replacing that algorithm they’d have fixed the large files issue as well.

4

The project backup algorithm is unchanged since v1.9. Please, upload your project in Dropbox(or any other cloud sharing service) and send me a download link to tiho at literatureandlatte dot com. Once I get the project hopefully I will be able to reproduce the problem and help. I must admit we never tested the backup with a >5GB project. A 5GB Scrivener project sounds too much to me, but every user has different needs.

5

It’s a test project only. I filled scenes with random text and added a bunch of pictures until the project size was huge (11.2 GB). Honestly, I think it’s too large myself, but there ARE people out there who have projects this large (it was reported by some other user than me). Original report is here: [url]https://forum.literatureandlatte.com/t/when-the-total-size-of-the-project-is-too-large-for-example-my-project-11g-it-will-not-be-decompressed-after-compres/45809/1].

I have PNGs in the “gargantuan” range, and some PDFs that large, too. Put hundreds or thousands of those in Scrivener, and the backup will be humongous.

Zipped project: 5.33 GB. 2 hr upload. It’ll wait until tomorrow.