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<== Date ==> <== Thread ==>
Subject: Re: caRepeater working practices
From: "Billy R. Adams" <[email protected]>
To: Simon Rees <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Mon, 28 Jun 2004 15:34:10 -0400
Simon,

I can't answer the why or if should be needed.

Here is how I start it, if needed, in my main C-program.
(C-code) to automatically detect if caRepeater is already running. If is running, then stop it, then start it, ensures a new copy is running. If not running, then start it.

I have to start caRepeater on a hybrid system where I have EPICS 3.14.5 on a Linux PC and EPICS 3.1.2 on the IOCS used in transitioning to EPICS 3.14.5.

/* ============================================================ */
/* Start "caRepeater" for EPICS-3.14.x on Linux
06-05-03 07-10-03 [email protected]
1. If running, then first kill "caRepeater"
2. Start "caRepeater" */
int returnCode;
printf ("\n");
returnCode = system ("date");
returnCode = system ("(ps -elf | awk '{print $15,$4}' | grep caRepeater) ");
if (returnCode == 0) {
fprintf (stdout, "Killing old running 'caRepeater'\n");
returnCode = system ("(ps -elf | awk '{print $15,$4}' | grep caRepeater) | kill -9 `aw
k '{print $2}'`");
}
fprintf (stdout, "Starting '/usr/local/epics/bin/linux-x86/caRepeater &'\n");
returnCode = system ("/usr/local/epics/bin/linux-x86/caRepeater &");
returnCode = system ("(ps -elf | awk '{print $15,$4}' | grep caRepeater) ");
/* ============================================================ */



Simon Rees wrote:

Dear all

Please excuse the naivety of this question but I am
just getting to grips with EPICS here at the Isaac Newton
Group of Telescopes. I have searched through the EPICS
documentation and so far haven't found any definitive
pointers.

Is it considered standard practice to start a caRepeater daemon
at machine boot time for any machine on which you might want to
run CA clients ?  (If there are many potential machines this might
be a bit of a burden to the system administrators).

Alternatively, do most people just allow the first client
which runs on the machine after reboot to spawn the caRepeater
and for all subsequent clients on the same machine to use it ?

Here at ING we are running with R3.13.1; our clients typically
run on Solaris 5.9 workstations.

Many thanks

Simon Rees
Isaac Newton Group of Telescopes


Billy Adams <mailto:[email protected]>

               Sverdrup NASA/Langley ROME Group
 Assigned to:  Research Facilities Branch of
               Research Facilities Services Competency
 Building 1251, Room 126D
 NASA Langley Research Center
 Hampton, Va. 23681-2199
 Phone 1-757-224-7858     Fax   1-757-224-7870



Replies:
RE: caRepeater working practices Jeff Hill
References:
virtual circuit disconnect Zheng Lifang
Re: virtual circuit disconnect Ralph Lange
caRepeater working practices Simon Rees
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