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| -rw-r--r-- | doc/bugs/FAT:_Date_resolution_for_mtime_2s--__62___implications/comment_6_650d950da065eeac966c2498418c668d._comment | 22 |
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diff --git a/doc/bugs/FAT:_Date_resolution_for_mtime_2s--__62___implications/comment_6_650d950da065eeac966c2498418c668d._comment b/doc/bugs/FAT:_Date_resolution_for_mtime_2s--__62___implications/comment_6_650d950da065eeac966c2498418c668d._comment new file mode 100644 index 000000000..94cbad0e6 --- /dev/null +++ b/doc/bugs/FAT:_Date_resolution_for_mtime_2s--__62___implications/comment_6_650d950da065eeac966c2498418c668d._comment @@ -0,0 +1,22 @@ +[[!comment format=mdwn + username="martin" + ip="89.183.56.177" + subject="use case and answer to joey's question "...then when..."" + date="2014-06-08T04:59:42Z" + content=""" +Hi joey, + +i really think we should repair the timestamp instead of force the user to `git-annex add` possibly corrupted files/content (see your comment above) git-annex checksums are excellent for data integrity but they are useless if we bypass them in case of adding and propagating +potentially corrupted content with `git-annex add` + +So here's for example a useful use case: + +1. user fills his transfer repo in town A. He checks (`git annex fsck`) that everything is fine. He unmounts the drive and travels to town B. + +2. In town B user mounts the drive and sees, that he suddenly doesn't have \"access\" to those \"crippled files\" on his transfer repo (the files seems modified for the user without a reason - why should he `git-annex add` them again?? - he'd rather think about data corruption) . He wonders whats going on and thats why he does a + +3. `git-annex fsck` . `git annex fsck` should checksum also such crippled files, should report correct checksums if they are correct (so that the users knows their usb drive is working properly) and should give a message like this: \"checksum ok - crippled timestamp - repair with git-annex fsck --repair-timestamp or define a modify window \"- (to be implemented - in rsync the problem is already solved with this option \"--modify-window=NUM compare mod-times with reduced accuracy\") + +In my case distance between town B and town A was approx 400km and in town B i didnt know what was going on. So i went back to town A without success for further investigation of my usb drive... :-(( + +"""]] |