RE: ChannelArchiver and EPICS4

["Malitsky, Nikolay D" <malitsky@bnl.gov>]

Hi Jorn,

I assume you tried ea4-cpp on hithub. This is an intermediate version implemented with EPICS V 4.3
I expect to formally release it by the EPICS meeting, May 18-22.

Since you triggered this topic, I would like to add some advertisement for this project. 

In short, the EPICS V4 Archiver Service (ea4) is designed after the Spark programming model 
and MongoDB API and extends them for hybrid systems (including control time series and 
experimental results).  Currently, the service is implemented around the original Channel 
Archiver IO library deployed on the V4 middle layer. For example, it can be illustrated by 
the following scripts:

http://nbviewer.ipython.org/github/malitsky/eapy/blob/master/examples/TimeSeries.ipynb
http://nbviewer.ipython.org/github/malitsky/eapy/blob/master/examples/Snapshot.ipynb

The programming model (together V4 middle layer) however opens the door for multiple extensions, 
such as (in-memory) map-reduce data processing, etc. 

The initial formal release will include:
1. EPICS V 4.4
2. MongoDB examples
3. Demo
4. Web site, API, etc.

Regards,

Nikolay Malitsky

________________________________________
From: tech-talk-bounces@aps.anl.gov [tech-talk-bounces@aps.anl.gov] on behalf of Jörn Wüstenfeld [j.wuestenfeld@hzdr.de]
Sent: Monday, April 20, 2015 1:45 AM
To: tech-talk@aps.anl.gov
Subject: ChannelArchiver and EPICS4

Hello,

I'm trying to compile the latest version of the epichchannelarchiver together
with EPICS4 versionn 4.4.0. But I run into problems:

epicschanarch-ea4-cpp/src/common/pva/ArchiveChannelProviderFactory.cpp: In
construktor
»ea4::pva::ArchiveChannelProviderFactory::ArchiveChannelProviderFactory()«:
epicschanarch-ea4-cpp/src/common/pva/ArchiveChannelProviderFactory.cpp:11:41:
Error: an abtract object of type »ea4::pva::ArchiveChannelProvider« can not be
instantiated
   m_provider(new ArchiveChannelProvider()){

Are these versions compatible, or do I need to use EPICS 4.3.0?

Regards
Jörn Wüstenfeld