CORAL Server Meeting

Tuesday 29 Jul 2008, 17:00 → 18:00 Europe/Zurich

31/2-029 (CERN)

Design and development issues of the CORAL server project, and integration with the ATLAS dbproxy project. Phone conference details: Dial-in: +1-510-665-5437 Passcode Tuesday : 8083 Passcode Wednesday : 8082 Topics: - Results of the integration and COOL tests – are we at Milestone 2? o Integration tests pass o COOL tests pass o Observations when running the tests with the proxy - Development status update: server, access plugin, proxy - Protocol discussion: toward the update part o Schema operation messages - see the attached Coral Protocol Descr. o Messaging framework mini-presentation, see the attached Coral Design Doc. (last chapter about the messgae streaming) - Plans for the next week o Implementing the schema operations o CoralAccess backport - AOB

Paper CoralServerProtocol.pdf Coral_Server_Software_Design_Description.pdf

We agreed that the CORALSERVER-0-1-0 release fulfils the M2 requirements. The first priority is testing the server in the Atlas framework. As there is high chance that coral server-related binaries can be used with en existing and installed 1.9.7 CORAL release (binary patch), we test it first. We will modify the CoralMessaging, CoralProtocol and CoralAccess modules so that the CoralAccess plugin be loaded as a backend, without unresolved symbols. We need to execute some tests to figure out why the COOL tests are running much slower with the CoralAccess plugin. The update CORAL functionality is less important now, however it enables using the existing CORAL tests directly. We agreed that we need to extend the CORAL test suite to include more read-only tests. Actions: - Create a CoralAccess plugin version that may be loaded and used by an existing unmodified CORAL 1.9.7 compilation (Alexander, Zsolt) - Test the CORALSERVER-0-1-0 in Atlas settings, and send the observations to the CORAL team (Andy) - Optional task: Create a simple prototype that is able handle the schema manipulating operations, by reusing the (caching) MySQL plugin functionality (Zsolt)