Hang on shutdown / Mac

[LDMartin1959]

Running Transmission 2.75 (13665) for Mac on a Macbook Air (1.6 ghz i5, 2 gm ram, 64 gb SSD running Mountain Lion 10.8.2. Transmission is running off a 32 gb thumb drive and saving the data to a dedicated location on the same drive). Whenever I shut Transmission down it hangs. The window closes but the application never finishes closing and the dock icon continues to show "quitting". It will keep me from being able to shut down the OS and computer unless I force Transmission to quit.

Curiously, I do not have this problem on my iMac desktop computer so it is something local to the MBA but what I don't know. Anyone got any ideas/suggestions? I looked at the FAQ and nothing there seems to apply.

Thank you.

[LDMartin1959]

Are newly added torrents involved? If so, preallocation of file space will be a factor. Pause torrents and wait for the process to complete before quitting.

What file system is used on the thumb drive?

The age of the torrents doesn't seem to be an issue. In playing with things it appears that the problem occurs when transfers are active. If I "pause" the transfers or none of the torrents are active Transmission seems to shut down fine. I would like to emphasis the word "appears" because there may be more or less to this than it appears. I'm not sure the preallocation is the cause as I believe I have plenty of space on the drive for the files in question. At least, I have quite a bit more than the size of the torrents which are listed in Transmission.

The thumb drive is formatted to Mac OS Extended (Journaled).

[LDMartin1959]

I'm not sure the preallocation is the cause as I believe I have plenty of space on the drive for the files in question.

What I meant was that session-added but uncompleted torrents have to be 'zeroed-out' when paused or quit. Pausing first makes this more transparent. Just watch the 'Pause All' button.

You are meaning the transfer rate being 'zeroed-out'? Okay, I get that. But doesn't Transmission stop transfers when I quit the application without having to first manually pause them? And how long should that process take? I understand taking a "few" seconds but should it stretch into minutes and longer?

[LDMartin1959]

For a multi-GB torrent, it can take a loooooong time. Roughly, 1 min. per 2 GB, as I recall.

Whenever I find myself d/ling torrents on my MBA I do no more than just a few files max at any given time and the max size is only a few gigs at a time (due to the amount of storage space I have to work with). I do far more at a time on my iMac and yet shutting down Transmission on the iMac generally takes a very short time, and on the MBA, it often "hangs" (translated as, "it never seems to complete the 'quit' process thus forcing me to Force Quit). I haven't timed it, but I know that it is taking w-a-a-a-a-y too long on my MBA, especially in comparison to the time required on my iMac.

You wouldn't want OS X giving you access to those 'naughty bits' you thought you'd deleted, would you?

And here I thought all bits were amoral!

[LDMartin1959]

I suppose the thumb drive might slow things down. Download to MBA, if possible, then copy to the thumb drive when the d/l is complete. In general, a new iMac probably is faster than a MBA.

I'll have to rearrange things a bit but I'll give it a try.

Nope, just the good ones.

But if they're amoral, there are no good ones!