> Thanks for this, it is similar, but our issue is that the underlying
> stat calls are taking so long that the data connection that has been
> opened is hitting the expiry of the timeout_stalled timer.

Could you provide syscall data (strace, ktrace, etc) of the issue you're 
seeing -- using proftpd-1.3.5rc2, preferably -- so that we can see the 
same data as you?

> Ascii conversion will help to some extent, but we have so many files 
> that doing all those stats is what is killing us.

You might also look into using:

  https://github.com/Castaglia/proftpd-mod_statcache

which caches stat(2) lookups.

Cheers,
TJ

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     -Kahlil Gibran

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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