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What’s DRO TOOL. DRO_TOOL will let the Federated Database Administrator to: manage the configuration of a Federated Database detect and handle failures in the Federated Database as soon as possible observe statistics for AMS throughput

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what s dro tool
What’s DRO TOOL
  • DRO_TOOL will let the Federated Database Administrator to:
    • manage the configuration of a Federated Database
    • detect and handle failures in the Federated Database as soon as possible
    • observe statistics for AMS throughput
    • control and manage fault tolerance in a FDB distributed environment

Javier Conde IT/ASD/RD45

dro tool
DRO_TOOL
  • Functionality
    • FDB: create, open, general settings, proprieties
    • AP: create, delete, set on-line, set off-line
    • DB: create, delete, move, check quorum
    • Replica: create, delete, change partition, set weight, verify accessibility
    • Tools: view schema, dump catalog, check Lock Server, start Lock Server, kill Lock Server, Lock Server monitor, start local AMS, stop local AMS, clean up FDB, list wait, tidy FDB
    • Statistics: start tests, stop tests, view active test information, visualise a test result
    • Control: agents status, ping, send agent, move agent, kill agent, start/stop remote AMS, check if AMS/LS servers are running

Javier Conde IT/ASD/RD45

dro tool1
DRO TOOL
  • Improvement
    • Ported to JDK1.2b4 and JFC Swing package included on it
    • Added Objectivity/DB 5.0 features
    • Scalability: search and display only a few databases
    • Divided in three parts: configuration, control and statistics
  • Problems using Voyager 2beta2 with JDK 1.2beta4
  • New release of Voyager just arrived!

Javier Conde IT/ASD/RD45

dro tool2
DRO TOOL
  • Control
    • Idea: have more information and control of the hosts involved in a FDB
    • Use of Java Mobile agents for the communication between servers
    • Check status of host, Lock Server, AMS server, file size and network Bandwidth
    • Inform of any failure a.s.a.p. (via popup dialog window or email)
    • Possibility of solve problems: easy to implement actions activated by some event (automatically start servers)

Javier Conde IT/ASD/RD45

dro tool3
DRO TOOL
  • Statistics
    • Three differents statistics: insertion, replication and bandwidth
    • Possibility of run more than one test in parallel
    • Possibility of run test, even if the application is not running (agents)
    • For insertion tests, choice of the object size
    • Visualisation of more than one result for comparations

Javier Conde IT/ASD/RD45

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