Tango Archiving Service 1 Tango Archiving Service q

Tango Archiving Service 1

Tango Archiving Service q. Since the last meeting Ø Archiving core new features and improvements Ø GUI applications new features and improvements q Deployment q Missing features Tango Meeting (Grenoble, Sep 2006) 2

Since the last meeting q Archiving core new features Ø Supervision Device is available (HDB/TDB Archiving. Watcher) • Diagnosis tool : detecting abnormal archiving interruption • Recovery : reactivate archiving on the failed attributes Ø Archiving service configuration (HDB and TDB) : To be able to dedicate a given archiver to a fixed set of attributes • Via the HDB/TDB Archiver Properties update • Make Archiving. Manager exclude these attributes from load balancing Ø Snap. Extractor is now ready Tango Meeting (Grenoble, Sep 2006) 3

Since the last meeting q Archiving core improvements Ø Full management of scalar and spectrum types (HDB and TDB) Ø TDBArchiver behavior enhancements for performance issues • The data files are still created by the Archiver but their import is assigned to database Ø Threaded device startup Ø Local error logging Tango Meeting (Grenoble, Sep 2006) 4

GUI Applications Mambo : HDB & TDB Archiving Bensikin : Snapshotting Tango Meeting (Grenoble, Sep 2006) 5

Since the last meeting q GUI Application : Mambo new features Ø Dedicated Archivers (HDB and TDB) Tango Meeting (Grenoble, Sep 2006) 6

Since the last meeting q GUI Application : Mambo new features (follow-up) Ø Can be opened either in Viewer, Expert or Expert+ mode • Viewer : only View Configurations • Expert : Archiving and View configurations • Expert+ : Export mode plus right on dedicated archivers usage Tango Meeting (Grenoble, Sep 2006) 7

Since the last meeting q GUI Application : Mambo improvements Ø Attributes selection via Tree or Table Tango Meeting (Grenoble, Sep 2006) 8

Since the last meeting q GUI Application : Mambo improvements (follow up) Ø Data cache management • Filled at startup with AMT Tables information • Manual refresh Ø Tree management • All trees are collapsed at startup • Manual expand Tango Meeting (Grenoble, Sep 2006) 9

Since the last meeting q GUI Application : Bensikin new features Ø Can be opened either in Expert or non Expert mode • Nonexpert : cannot create snapshot models • Expert : all the rights q GUI Application : Bensikin improvements Ø Spectrum type is handled Tango Meeting (Grenoble, Sep 2006) 10

Deployment q Deployed Configuration Ø Ø 1 Oracle server (Linux) for TDB 1 Oracle server (Linux) for HDB and Snapshot All archivers devices deployed on one server (Linux) Tango 5. 3. 4 distrib (with Tang. ORB 4. 9. 2) Ø On HDB server • 1 Hdb. Extractor, 1 Archiving. Manager, 1 Hdb. Archiving. Watcher • 1 Snap. Archiver, 1 Snap. Manager Ø On TDB server • 1 Tdb. Extractor , 1 Tdb. Archiving. Watcher Ø On Archivers server • 10 Hdbarchivers (with 5 device instances each), • 10 Tdbarchivers (with 5 device instances each), Ø HDB Archiving period ranging from 10 to 60 s for 2000 attributes Ø TDB Archiving not yet fully deployed Tango Meeting (Grenoble, Sep 2006) 11

Deployment q Deployed Configuration (follow up) Ø Load balancing • Each Hdb. Archiver : in charge of ~40 attributes • Each Tdbarchiver : in charge of ~(10 -20) attributes Ø Major encountered problems • Oracle is very disk space consuming when handling spectrums – Still under investigation q Future Configuration (next week) Ø Support of 6000 attributes by the Hdb and Tdb Archivers Tango Meeting (Grenoble, Sep 2006) 12

Missing features q Under development Ø Under sampling extracted data for View display Ø Validation of the dedicated archivers mechanism Ø Potential corrections due to large number of attributes to be archived q Not yet planned Ø Re-synchronize Archiving behavior between Oracle and My. Sql databases Ø Handling image attributes ? Tango Meeting (Grenoble, Sep 2006) 13