What s dro tool
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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

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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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