Discussion:
Shortcuts?
Mike Diehl
2009-08-18 17:58:51 UTC
Permalink
Hi all,

I'm trying to get a fairly large sync done and I'm running into a problem.

I've done enough incremental syncs that I believe this one should complete
without running out of memory.

However, after a while, it starts to use "shortcuts" and begins to run very
slowly.

For example:

Shortcut: copying chimaera/Development/yact/src_file.pm from local file
mdiehl/Development/yact/src_file.pm

It will take DAYS to complete at this rate.

What should I do?
--
Take care and have fun,
Mike Diehl.


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Jerome Vouillon
2009-09-08 11:55:59 UTC
Permalink
Hi,
Post by Mike Diehl
I'm trying to get a fairly large sync done and I'm running into a problem.
I've done enough incremental syncs that I believe this one should complete
without running out of memory.
Right. This issue occurs at the end of update detection. (By the way,
Unison is not actually running of memory. Old versions of Unison
print an incorrect error message.)
Post by Mike Diehl
However, after a while, it starts to use "shortcuts" and begins to run very
slowly.
Shortcut: copying chimaera/Development/yact/src_file.pm from local file
mdiehl/Development/yact/src_file.pm
This "shortcut" messages mean that Unison is performing a local copy
rather than transferring data over the network, as it found an
identical file that was already transferred. This is very fast, and
is thus not the reason why Unison runs slowly.

How do you know that Unison is running very slowly?

-- Jerome


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