Experimental Physics and
Industrial Control System

Jeong Han Lee via Tech-talk <tech-talk at aps.anl.gov> · Wed, 28 Oct 2020 19:33:00 -0700

The following configurations are always a mystery for me, making me
confused. I think I don't have enough knowledge on them.

EPICS_CA_AUTO_ADDR_LIST=YES
EPICS_CA_ADDR_LIST=localhost

From my few test environments,  I don't need any configuration at all,
everything seems to work without them.

On Wed, Oct 28, 2020 at 6:20 PM Manoussakis, Adamandios
<manoussakis1 at llnl.gov> wrote:
>
> Just an update it seems
>
> EPICS_CA_AUTO_ADDR_LIST=YES
> EPICS_CA_ADDR_LIST=localhost
>
> must be in the archappl.conf file otherwise it does not connect to the PVs
>
> I dont quite understand why since I thought it is just setting environment variables from that script and having them exported in the ~/.profile should be enough?  Maybe Han you can clear this up for me why the install looks in this archappl.conf file and not at the env variables that are set in ~/.profile?

The environment which I made is to isolate all users ENV variables
from 4 Tomcat processes (mgmt,etl,...). The main wrapper script will
call each startup.sh located in {mgmt,etl,...}/bin installation path.
So that is my design decision. However, I never check if these
environments are defined system-wide configuration (globally).

Anyway, as you know, my intention is to give a little help to set up
the archiver appliance when users, who do not have many experiences on
many services (mysql, tomcat, java, and so on) would like to
understand how it works. That is the main purpose of this repository.

I will have another one for the full production configuration in near
future (next year) for the upcoming project where I am working on.

Thanks,
Han

>
> Thanks
>
> ________________________________
> From: Jeong Han Lee <citadel.lee at gmail.com>
> Sent: Wednesday, October 28, 2020 6:04 PM
> To: Manoussakis, Adamandios <manoussakis1 at llnl.gov>
> Cc: Wang, Lin <wanglin at ihep.ac.cn>; tech-talk <tech-talk at aps.anl.gov>
> Subject: Re: Archiver Appliance PVs never connect to be archived, always "Initial Sampling"
>
> Thank you all, if you leave comments or proposals in issue, I will
> update them in my repository.
> I am glad this repo helps you to figure out archiver appliances at the
> beginning.
>
> Thanks,
> Han
>
> On Wed, Oct 28, 2020 at 6:00 PM Manoussakis, Adamandios via Tech-talk
> <tech-talk at aps.anl.gov> wrote:
> >
> > IT WORKS!  Just need to track down which change made it work now haha.  But it has something to do with either changing the AUTO_ADDR back to NO or adding the env variables to the archappl.conf file.  Will update once I figure out which one it is.  But thank you both for helping me debug it was extremely helpful!
> > ________________________________
> > From: Manoussakis, Adamandios <manoussakis1 at llnl.gov>
> > Sent: Wednesday, October 28, 2020 5:53 PM
> > To: Wang, Lin <wanglin at ihep.ac.cn>
> > Cc: tech-talk <tech-talk at aps.anl.gov>
> > Subject: Re: Archiver Appliance PVs never connect to be archived, always "Initial Sampling"
> >
> > Hi Lin,
> >
> > currently I have in my ~/.profile
> >
> > export EPICS_CA_AUTO_ADDR_LIST=YES
> > export EPICS_CA_ADDR_LIST=localhost
> >
> > do I need to have these located in the archappl.conf instead of being exported through profile, seems like the scripts do the same thing at the end of the day just export the env variables?
> >
> > Thanks
> >
> >
> > ________________________________
> > From: Wang, Lin <wanglin at ihep.ac.cn>
> > Sent: Wednesday, October 28, 2020 5:41 PM
> > To: Manoussakis, Adamandios <manoussakis1 at llnl.gov>
> > Cc: tech-talk <tech-talk at aps.anl.gov>
> > Subject: Re: Archiver Appliance PVs never connect to be archived, always "Initial Sampling"
> >
> >
> > Hello,
> >
> > You may also want to make sure the EPICS-related environment variable (EPICS_CA_AUTO_ADDR_LIST and EPICS_CA_ADDR_LIST) loaded by Archiver Appliance is correct, probably in your case "localhost" should be in the EPICS_CA_ADDR_LIST address list.
> >
> >
> > For example, in the Archiver Appliance single machine installation sample, the following line locates in sampleStartup.sh file, and setEPICSEnv.sh file sets the two environment variables above. In your case this line can be in the conf file,
> >
> > source /opt/local/setEPICSEnv.sh
> >
> >
> >
> > Regards,
> >
> > Lin
> >
> >
> >
> > -----Original Messages-----
> > From:"Manoussakis, Adamandios via Tech-talk" <tech-talk at aps.anl.gov>
> > Sent Time:2020-10-28 14:45:17 (Wednesday)
> > To: tech-talk <tech-talk at aps.anl.gov>
> > Cc:
> > Subject: Archiver Appliance PVs never connect to be archived, always "Initial Sampling"
> >
> > Hello All,
> >
> > I have started to build the epics archiver appliance following Hans repo at https://github.com/jeonghanlee/epicsarchiverap-env.  Everything seems to be working great with the application and I am able to access the archiver web application just fine.  I start up a basic softIoc with a couple PVs and my pyDM widget is able to control and access them just fine but I cannot get them to be archived by the appliance.  I can also use caget/camonitor/caput without any issue to manipulate the softIoc.   I saw another post about checking the ports in the appliances.xml but that seems to be correct from what I can tell.  I tried to look through the logs in /opt/epicsarchiverap/engine mgmt etl retrieval but I didnt see any errors that stood out.  I am not sure if its a connection issue with the ca and the archiver or a record thing I am missing but any advice would be helpful.  I have tried using ca://calc:a , calc:a but no luck getting it to archive.
> >
> > appliances.xml
> >
> > <appliances>
> >    <appliance>
> >      <identity>appliance0</identity>
> >      <cluster_inetport>localhost:16670</cluster_inetport>
> >      <mgmt_url>http://localhost:17665/mgmt/bpl</mgmt_url>
> >      <engine_url>http://localhost:17666/engine/bpl</engine_url>
> >      <etl_url>http://localhost:17667/etl/bpl</etl_url>
> >      <retrieval_url>http://localhost:17668/retrieval/bpl</retrieval_url>
> >      <data_retrieval_url>http://localhost:17668/retrieval</data_retrieval_url>
> >    </appliance>
> > </appliances>
> >
> > also checked the conf file for archappl
> >
> > JAVA_HOME="/usr/lib/jvm/java-11-openjdk-amd64"
> > JAVA_OPTS="-Djava.security.egd=file:/dev/./urandom"
> > CATALINA_HOME="/usr/share/tomcat9"
> > CATALINA_OPTS="-XX:MaxMetaspaceSize=256m -Xms512m -Xmx512m -XX:+UseG1GC -ea"
> >
> > ARCHAPPL_APPLIANCES="/opt/epicsarchiverap/appliances.xml"
> > ARCHAPPL_POLICIES="/opt/epicsarchiverap/policies.py"
> > ARCHAPPL_PROPERTIES_FILENAME="/opt/epicsarchiverap/archappl.properties"
> > ARCHAPPL_MYIDENTITY="appliance0"
> > ARCHAPPL_STORAGE_TOP="/arch"
> > ARCHAPPL_SHORT_TERM_FOLDER="/arch/sts/ArchiverStore"
> > ARCHAPPL_MEDIUM_TERM_FOLDER="/arch/mts/ArchiverStore"
> > ARCHAPPL_LONG_TERM_FOLDER="/arch/lts/ArchiverStore"
> >
> > Example Record for one of the PVs
> >
> > record(ao,"$(INST):a"){
> > field(DESC,"Input A")
> > field(DTYP,"Soft Channel")
> > field(PREC,1)
> > field(DRVH,10)
> > field(HOPR,10)
> > field(VAL,0)
> > field(LOPR,-10)
> > field(DRVL,-10)
> > field(UDF,1)
> > field(FLNK,"$(INST):sum")
> > field(ADEL,0)
> > field(MDEL,0)
> > }
> >
> > Thanks

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System