Daily Archives: May 10, 2018

Oracle GDS Licensing

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Oracle Global Data Services (GDS) is a feature of Oracle Database 12c that provides connect-time and run-time load balancing, region affinity, replication lag tolerance based workload routing, and enables inter-database service failover across a set of replicas.

Here are the details of how Oracle GDS is licensed.

  • Databases in a GDS configuration:
    • Must be Database Enterprise Edition (EE) +  Licensed for Oracle Active Data Guard Option and/or Oracle GoldenGate
  • GSM Software
    • No separate license is required
  • GDS Catalog Database
    • No Database EE license is required, if this is a schema in an existing repository (e.g. Oracle Enterprise Manager) database
    • No Database EE license is required (same as Oracle RMAN/EM repository license), if hosted as a separate single instance database
    • If Oracle RAC / Data Guard is used, Oracle RAC Option and Database EE license (for the extra nodes and/or standby) is required

For more information on GDS, do visit OTN GDS portal – https://www.oracle.com/goto/gds

AskTOM Office Hours: Oracle Sharding Session (April 23rd, 2018)

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Exploring Oracle Sharding:
AskTOM Office Hours offers free, open Q&A sessions with Oracle Database experts. Here is the recording of the Oracle Sharding session that I conducted on April 23rd, 2018.
Description:
Oracle Database with Sharding is a globally distributed multi-model (relational & document) cloud-native (and on-premises) DBMS. It is built on shared-nothing architecture where data is horizontally partitioned across databases that share no hardware or software. It provides linear scalability, fault isolation and geographic data distribution for shard-amenable applications. Sharding does all this while rendering strong consistency, full power of SQL, and the Oracle Database ecosystem. Listen to this recorded session to learn how you can deploy a sharded DB and elastically scale your transactions, database capacity and concurrent users.

 

Highlights:

@1.52 – Introduction to Oracle Sharding

@4:08 – Benefits of Sharding

@6:28 – Architecture and Key Features

@21:02 – Data Modeling and Application Considerations for a Sharded Database (SDB)

@29.51 –  Sharded Schema Creation

@36:14 – Direct Routing against an SDB

@41:23 – Proxy Routing for reporting workload

@48:35 – Results of Oracle Sharding Scalability Characterization study