Minutes of MW meeting  30 August 2002


Present:   Kris (minutes), Nikolai, Steen, Slavek, Jens


The action list has been presented by Kris (see minutes from previous meeting) and reviewed:

nanosleep: no progress. 

C++ clients PVSS integration: Slavek is waiting for Pep to come back from holiday. Access to ST machine for him is necessary. Question was raised whether shared libraries are needed for integration. TOF: no news.  API for Motif applications: waiting for a decision on future of these applications.

orderly client shutdown: according to Jens no problems expected on W200 . atexit() exists like on Unix.

TCP socket buffer size: Jens tried the suggested solutions to increase buffer size for a PC without visible result. Kris will make a request to the CERN Windows services. Another possibility is a modification in ORBacus code.

Group calls: This is not considered high priority so far. The necessity has to be proved and design made first.

Logging: Nikolai wants more than one "Info" level. Kris reminded that there was no objection to the number of levels when the proposition was originally made. He will look if more levels can easilly be added anyway.

W2000 RDA server: Nikolai should make an iteration on RDA with corrections and mods of Jens and put it in Razor or CVS.

Directory server: Kris corrected the "out of cursors" bevaviour.

Distribution of timing data via CMW: Architecture work has started between Kris, Steen, Michel, J-C Bau and Julian Lewis.

Other items:  The updated list in the following.

 

 

Action lists

Development, Documentation, Libraries

What

Who

Priority or Date

Description, Status

Client or reason

nanosleep Steen, Nikolai High Blocks thread on some DSCs. No progress: waiting for Nicolas d.M-N GM CMW server
RDA C++ client use Slavek, Nikolai Medium Tested with internal tests. Integrating in PVSS driver ST, Passerelle, TOF, Motif clients
TCP socket buffer size W2000 Jens, Steen, Nikolai Medium Windows2000 clients will be disconnected by RDA if they are to slow on  reception (has to be done so that other updates not delayed) This problem has been linked to small socket buffer size. W2000 java clients
Terminate Java client connections Nikolai Medium A potential problem when virtual machine is shared. The strategy of the group for this should be requested.  
RDA Version 2.0 All  Jan. 2003 New RDA major version with all accumulated changes. See detailed description.

List of changes done. Nikolai distributed IDL doc. 

new version
W2000 RDA server Jens Medium Done. Modifications to be included by Nikolai. OPC GW
W2000 RDA client Jens Medium port to W2000 Passerelle
Directory server Kris Medium Development finished and stable version installed. Use server names rather than Device Info in clients. Describe DB use to the ID section Java  clients
DB server Kris Medium Development (iterators) to be finished. Describe DB use to the ID section  
OPC server Jens Medium Update to new rda and adm standards. Integrate logging and admin specific to OPC.  
Distribution of telegram data to Java clients Kris, Steen, Michel High PS Java clients need telegram information. Current method of distributing it is unreliable and difficult to match data and telegrams. PS Java clients
         

 

CMW server developments

What

Who

Priority or Date

Description, Status

Client or reason

LHC PC Nikolai, Kris Medium Prototype has been done by Nikolai. No move from PC. Nikolai to provide résumé of his work -> follow up by Bertrand LHC
Biscoto Kris Medium Prototype has been done by Kris in April 2002. Application for operational equipment being prepared. LHC
Mugef (SPS PC) Kris, Francois Medium Prototype has been done to implement PC state contract according to SPS2001 spec. Mandate? SPS upgrade, 
BT Kickers Kris, ??? Medium Convert existing SPS2001 server to CMW server. New servers to be developed for BT. Mandate? SPS upgrade

 

DONE between  20 Aug and 30 Aug 2002

For other "done" items please see the previous minutes

All activities

What

Who

Priority or Date

Description, Status

Client or reason

Orderly C++ client shutdown Jens finished Question raised by Nikolai whether no resources are left on Windows2000 platform when client (or server) aborts. passerelle, OPC server