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DB Installation and Care

ICAT Developer Workshop, The Cosener's House 25-26 August 2009. DB Installation and Care. Carmine Cioffi Database Administrator and Developer. Outline. Team and Our Role The Oracle Server ICAT Schemas SVN Installation Initialization ICAT Jobs Monitoring and Backup ICAT DLS

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DB Installation and Care

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  1. ICAT Developer Workshop, The Cosener's House 25-26 August 2009 DB Installation and Care Carmine Cioffi Database Administrator and Developer

  2. Outline • Team and Our Role • The Oracle Server • ICAT Schemas • SVN • Installation • Initialization • ICAT Jobs • Monitoring and Backup • ICAT DLS • Passed and Future Work

  3. Team and Our Role • Gordon D. Brown • Keir C. Hawker • Carmine Cioffi • Eter Pani • Richard B. Sinclair

  4. Team and Our Role • We all watch over the databases. • Keir and I are the primary DBA on ICAT system but if something does happen to us (e.g. we get swine flu ) there will always be someone to look after ICAT (even Gordon ) • We actively participate in the development and maintenance of the database schema and PL/SQL code

  5. The Oracle Server • Version 11.1.0.6 64bit • 5nodes RAC • Each node has 2 Dual core Intel Xeon 5160 3GHz • 4 GB RAM • Red Hat Enterprise Linux 4 • Is located in the new building R89 (UPS room)

  6. RAC diagram

  7. ICAT Schemas • ICAT system makes use of 3 schemas: • The main database (ICAT) where the real data are stored • API schema is used by the application API to store user session information • Data Portal schema is used by the Data Portal application to store user session information

  8. ICAT Schemas • Different schemas are installed for different version and for different facility: • CLF has none • ICAT Version 3.1: • Only ICAT DLS is installed • ICAT( 280MB) • Data Portal(51MB)

  9. ICAT Schemas • Version 3.3 • Both facilities (DLS, ISIS) are installed • ICAT size • DLS 223MB • ISIS 10.5 GB • Data Portal size: • DLS 3MB • ISIS 3MB • API size: • DLS 20MB • ISIS 36MB

  10. SVN • We have two SVN repositories: • EDB SVN: subversion system for our own code • ICAT SVN: subversion system for ICAT code • ICAT SVN: • Contains the ICAT DB-schema installation scripts • Used by developers (?) • Used by us • Is the ICAT official code repository • EDB SVN: • Contains the ICAT API and Data Portal DB-schema installation scripts • Is used only by us

  11. SVN • EDB SVN (cons): • It is not the ICAT official repository • It is a private area • We dump the schemas from the production database: • No way to keep track of changes in the schema apart from taking regular dump from the database • If we install a new ICAT API or Data Portal schema we may miss the latest changes • This should change: • EDB Scripts should be stored in ICAT SVN • Developers should maintain it

  12. Installation • We create an account (schema in Oracle terms) • We put the ICAT initialization files on the database server. These are tvs files • We run the installation script: • We got an installation script for each ICAT flavour: DLF,ISIS and CLF • install_icatdls.sql • install_icatisis.sql • install_icatclf.sql • Distribute the connection string, password and account name

  13. Initialization • The initialization is done using external tables • With External tables is possible to read data from external (tvs) text files stored on the server • ICAT 3.1 use 8 external tables: • ICAT 3.3 use 11 external tables

  14. Initialization • ICAT 3.1 external tables: • EXTERN_DATAFILE_FORMAT • EXTERN_DATASET_STATUS • EXTERN_DATASET_TYPE • EXTERN_FACILITY_CYCLE • EXTERN_INSTRUMENT • EXTERN_INVESTIGATION_TYPE • EXTERN_PARAMETER_LIST • EXTERN_STUDY_STATUS • ICAT 3.3 external tables • EXTERN_DATAFILE_FORMAT • EXTERN_DATASET_STATUS • EXTERN_DATASET_TYPE • EXTERN_FACILITY_CYCLE • EXTERN_ICAT_ROLE • EXTERN_INSTRUMENT • EXTERN_INVESTIGATION_TYPE • EXTERN_PARAMETER_LIST • EXTERN_STATION_SCIENIST • EXTERN_STUDY_STATUS • EXTERN_THIS_ICAT

  15. ICAT JOBS • ICAT 3.1: • ISIS: • None • DLS: • ICAT_DLS_PROPOGATION: • Enabled • Run every 15 minutes • ICAT 3.3: • ISIS: • SET_RANGE_AND_DATES: • Enabled • Run every 15 minutes • DLS: • SET_RANGE_AND_DATES: • Disabled • ICAT_DLS_PROPOGATION: • Enabled • Run every 30 minutes

  16. Monitoring and Backup • Oracle Enterprise Manager: • manages the database • monitors the database • set up alert for metrics that cross threshold set by us • Recovery Manager (RMAN): • Helps to makes database backup • Database Backups are done daily on the local file system • File system backup to tape (ADS) are done daily

  17. Monitoring and Backup

  18. Monitoring and Backup

  19. ICAT DLS • The ICAT DLS system does deploy at the moment 15 different databases: • DUO desk • ICAT • 13 Ikittens • The propagation job (ICAT_DLS_PROPOGATION)is responsible of keeping data flowing between them

  20. ICAT DLS propagation job flow chart I04 I03 I041 I02 I05 • ICAT database is located in R89 • DUO desk is located at Diamond • Each Ikitten is local at each diamond beam line I11 DUO desk ICAT I15 propagation I16 New investigation with shifts (etc.) are set at DUO desk level. This information is then propagated to ICAT and from here to the Ikittens. I18 P60 I19 I24 I22

  21. Passed and Future Work • Last year we worked with Devigo on the development of the new ICAT schemas (ICAT 3.3) : • Creation of the migration script from ICAT 3.1 to ICAT 3.3 • Update the propagation script • Develop new triggers and PL/SQL packages • Help in tuning SQL statements • We are fully dedicated in maintaining the current system and committed to help any further development that may raise from this meeting

  22. ANY QUESTIONS?

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