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List:       unison-users
Subject:    Re: [unison-users] Call for alpha-testers
From:       bcpierce () seas ! upenn ! edu
Date:       2008-06-27 19:13:11
Message-ID: 20080627151311.aru9m3ypcs0s4w48 () webmail ! seas ! upenn ! edu
[Download RAW message or body]

> * Added support for resuming directory transfers if Unison is
> interrupted in the middle.  This functionality is always on.
>
> Can you describes how this works? Specifically, are the following   
> scenarios covered:
> - If during the initial scan, Unison is interrupted, can Unison resume?
> - If during the part where unison detects new changes, Unison is   
> interrupted, can Unison resume?
> - If during the file copy, Unison is interrupted, can Unison resume?

The new functionality applies only to the transfer phase.  Update  
detection works like it always did.

> Also, are the archives from the 2.27.57 binary useful or does the   
> new version require a new fresh scan?

2.27 archives will work with the new version.

Best,

      Benjamin




>
> John
>
>
> ----- Original Message ----
> From: Benjamin Pierce <bcpierce@cis.upenn.edu>
> To: "unison-users@yahoogroups.com Unison" <unison-users@yahoogroups.com>
> Sent: Friday, June 27, 2008 10:45:17 AM
> Subject: [unison-users] Call for alpha-testers
>
>
> Dear Unison Users,
>
> During the past couple of weeks, Alan Schmitt and I have been doing
> quite a bit of work trying to improve Unison's ability to deal with
> large files and directories.  This has required some major internal
> changes, which will take a little time to fully stabilize, but we're
> using it ourselves and it appears to be working.  (Also, we believe
> that we've left all of Unison's paranoid double-checking mechanisms in
> place, so the new functionality should at least be fail-safe.)  At
> this point, we'd love to have some other courageous souls using it, to
> help us shake out the last remaining bugs.
>
> We've done two main things in this version:
>
> * Added support for resuming directory transfers if Unison is
> interrupted in the middle.  This functionality is always on.
>
> * Added support for using an external utility for single-file
> transfers.  (Unison's built-in transport mechanism is not very fast
> for this case, so an external program like rsync can substantially
> improve performance. )  If the external program is able to resume
> interrupted transfers (as rsync is, for example), this will make
> things even faster.
>
> This functionality is enabled by setting the flag "copythreshhold" to
> something non-negative.  Setting it to zero will use the external
> program for all whole-file transfers (i.e., where the file has been
> created on one host).  Setting it to something positive will use the
> external program for transferring files larger than this value (in KB).
>
> The external utility is rsync by default.  If you want to use a
> different one, set the "copyprog" and "copyprogrest" preferences.
> (They are described in detail in the Preferences section of the user
> manual.)
>
> You can find both sources and binaries (for OSX-Intel and Windows) on
> the Unison download page.  Please post a note here with any
> experiences, positive or negative.
>
> Thanks!
>
> - Benjamin (and Alan)
>
>
>
>
>



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            <p>&gt; * Added support for resuming directory transfers if Unison is<br>
&gt; interrupted in the middle.  This functionality is always on.<br>
&gt;<br>
&gt; Can you describes how this works? Specifically, are the following   <br>
&gt; scenarios covered:<br>
&gt; - If during the initial scan, Unison is interrupted, can Unison resume?<br>
&gt; - If during the part where unison detects new changes, Unison is   <br>
&gt; interrupted, can Unison resume?<br>
&gt; - If during the file copy, Unison is interrupted, can Unison resume?<br>
<br>
The new functionality applies only to the transfer phase.  Update  <br>
detection works like it always did.<br>
<br>
&gt; Also, are the archives from the 2.27.57 binary useful or does the   <br>
&gt; new version require a new fresh scan?<br>
<br>
2.27 archives will work with the new version.<br>
<br>
Best,<br>
<br>
Benjamin<br>
<br>
&gt;<br>
&gt; John<br>
&gt;<br>
&gt;<br>
&gt; ----- Original Message ----<br>
&gt; From: Benjamin Pierce &lt;<a \
href="mailto:bcpierce%40cis.upenn.edu">bcpierce@cis.<wbr>upenn.edu</a>&gt;<br> &gt; \
To: &quot;<a href="mailto:unison-users%40yahoogroups.com">unison-users@<wbr>yahoogroups.<wbr>com</a> \
Unison&quot; &lt;<a href="mailto:unison-users%40yahoogroups.com">unison-users@<wbr>yahoogroups.<wbr>com</a>&gt;<br>
 &gt; Sent: Friday, June 27, 2008 10:45:17 AM<br>
&gt; Subject: [unison-users] Call for alpha-testers<br>
&gt;<br>
&gt;<br>
&gt; Dear Unison Users,<br>
&gt;<br>
&gt; During the past couple of weeks, Alan Schmitt and I have been doing<br>
&gt; quite a bit of work trying to improve Unison's ability to deal with<br>
&gt; large files and directories.  This has required some major internal<br>
&gt; changes, which will take a little time to fully stabilize, but we're<br>
&gt; using it ourselves and it appears to be working.  (Also, we believe<br>
&gt; that we've left all of Unison's paranoid double-checking mechanisms in<br>
&gt; place, so the new functionality should at least be fail-safe.)  At<br>
&gt; this point, we'd love to have some other courageous souls using it, to<br>
&gt; help us shake out the last remaining bugs.<br>
&gt;<br>
&gt; We've done two main things in this version:<br>
&gt;<br>
&gt; * Added support for resuming directory transfers if Unison is<br>
&gt; interrupted in the middle.  This functionality is always on.<br>
&gt;<br>
&gt; * Added support for using an external utility for single-file<br>
&gt; transfers.  (Unison's built-in transport mechanism is not very fast<br>
&gt; for this case, so an external program like rsync can substantially<br>
&gt; improve performance. )  If the external program is able to resume<br>
&gt; interrupted transfers (as rsync is, for example), this will make<br>
&gt; things even faster.<br>
&gt;<br>
&gt; This functionality is enabled by setting the flag &quot;copythreshhold&quot; \
to<br> &gt; something non-negative.  Setting it to zero will use the external<br>
&gt; program for all whole-file transfers (i.e., where the file has been<br>
&gt; created on one host).  Setting it to something positive will use the<br>
&gt; external program for transferring files larger than this value (in KB).<br>
&gt;<br>
&gt; The external utility is rsync by default.  If you want to use a<br>
&gt; different one, set the &quot;copyprog&quot; and &quot;copyprogrest&quot; \
preferences.<br> &gt; (They are described in detail in the Preferences section of the \
user<br> &gt; manual.)<br>
&gt;<br>
&gt; You can find both sources and binaries (for OSX-Intel and Windows) on<br>
&gt; the Unison download page.  Please post a note here with any<br>
&gt; experiences, positive or negative.<br>
&gt;<br>
&gt; Thanks!<br>
&gt;<br>
&gt; - Benjamin (and Alan)<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
<br>
</p>
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	#ygrp-sponsor .ad{
		padding: 8px 0;
	}
	#ygrp-sponsor .ad #hd1{
		font-family: Arial;
		font-weight: bold;
		color: #628c2a;
		font-size: 100%;
		line-height: 122%;
	}
	#ygrp-sponsor .ad a{
		text-decoration: none;
	}
	#ygrp-sponsor .ad a:hover{
		text-decoration: underline;
	}
	#ygrp-sponsor .ad p{
		margin: 0;
	}
	o{font-size: 0; }
	.MsoNormal{
	   margin: 0 0 0 0;
	}
	#ygrp-text tt{
	  font-size: 120%;
	}
	blockquote{margin: 0 0 0 4px;}
	.replbq{margin:4}
	-->
	</style>
	</head>
	<!--~-|**|PrettyHtmlEnd|**|-~-->
	</html><!--End group email -->



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