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List: unison-users
Subject: Re: [unison-users] Unison socket process hanging
From: "Adrian Klaver adrian.klaver () aklaver ! com [unison-users]" <unison-users-noreply () y
Date: 2015-01-28 21:33:15
Message-ID: 54C9559B.70507 () aklaver ! com
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On 01/27/2015 08:56 AM, loris_p1@yahoo.com [unison-users] wrote:
> Hi,
>
> I have an application that, among other things, syncs a folder using
> Unison 2.40.102 for Windows between two machines.
>
> When sync is going to be performed, machine A sends a message to machine
> B and machine B creates a unison socket instance using the following
> command:
>
>
> unison -socket <port>
>
>
> then machine A runs unison using the following command line:
>
>
> -batch -prefer=newer -confirmbigdel=false -halfduplex -killserver
> -log=false -ignore="Name *.*" -ignorenot="Name {*.txt}"
> "C:\path\to\my\folder" "socket://<machineB>:<port>/./\my\folder"
>
>
> so when sync has been performed, unison socket on machine B is killed
> and all is working like a charm.
>
> However, yesterday I noticed a strange behavior in unison socket
> process: instead of interacting with machine A and then killing himself,
> the process kept using 100% of a CPU core until I killed it today when I
> discovered the problem. In the meanwhile, there was no network activity
> on the port being involved and unison client CPU usage on machine A was 0%.
>
>
> Before I started using "-halfduplex" in client command line I used to
> experience this issue quite often, but now it seems that something else
> is making unison socket process hang, albeit much less frequently.
>
>
> Unfortunately the problem happened while I was running the application
> without logging Unison output.
>
> Any suggestions?
Has anything changed in your setup recently?
Unison version?
Windows upgrades?
From here:
http://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-manual.html#socketmeth
"Since the socket method is not used by many people, its functionality
is rather limited. For example, the server can only deal with one client
at a time. "
So is there a chance two clients tried to hit the socket at the same time?
>
>
> Thanks.
>
--
Adrian Klaver
adrian.klaver@aklaver.com
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<p>On 01/27/2015 08:56 AM, loris_p1@yahoo.com [unison-users] wrote:<br>
> Hi,<br>
><br>
> I have an application that, among other things, syncs a folder using<br>
> Unison 2.40.102 for Windows between two machines.<br>
><br>
> When sync is going to be performed, machine A sends a message to machine<br>
> B and machine B creates a unison socket instance using the following<br>
> command:<br>
><br>
><br>
> unison -socket <port><br>
><br>
><br>
> then machine A runs unison using the following command line:<br>
><br>
><br>
> -batch -prefer=newer -confirmbigdel=false -halfduplex -killserver<br>
> -log=false -ignore="Name *.*" -ignorenot="Name {*.txt}"<br>
> "C:\path\to\my\folder" \
"socket://<machineB>:<port>/./\my\folder"<br> ><br>
><br>
> so when sync has been performed, unison socket on machine B is killed<br>
> and all is working like a charm.<br>
><br>
> However, yesterday I noticed a strange behavior in unison socket<br>
> process: instead of interacting with machine A and then killing himself,<br>
> the process kept using 100% of a CPU core until I killed it today when I<br>
> discovered the problem. In the meanwhile, there was no network activity<br>
> on the port being involved and unison client CPU usage on machine A was 0%.<br>
><br>
><br>
> Before I started using "-halfduplex" in client command line I used \
to<br> > experience this issue quite often, but now it seems that something \
else<br> > is making unison socket process hang, albeit much less frequently.<br>
><br>
><br>
> Unfortunately the problem happened while I was running the application<br>
> without logging Unison output.<br>
><br>
> Any suggestions?<br>
<br>
Has anything changed in your setup recently?<br>
Unison version?<br>
Windows upgrades?<br>
<br>
From here:<br>
<br>
http://www.cis.upenn.edu/~bcpierce/unison/download/releases/stable/unison-manual.html#socketmeth<br>
<br>
"Since the socket method is not used by many people, its functionality <br>
is rather limited. For example, the server can only deal with one client <br>
at a time. "<br>
<br>
So is there a chance two clients tried to hit the socket at the same time?<br>
<br>
><br>
><br>
> Thanks.<br>
><br>
<br>
-- <br>
Adrian Klaver<br>
adrian.klaver@aklaver.com<br>
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