To successfully complete this Quicktart, you must have the following:

• OCI Object Storage access

In this Quickstart, we will use a sample trail file (named tr) which is shipped with GG for DAA. If you want to continue with sample trail file, it is located at GG_HOME/opt/AdapterExamples/trail/ in your GG for DAA instance.

GG for DAA uses client libraries in the replication process and these libraries need to be downloaded before setting up the replication process. You can use dependency downloader to download the client libraries. Dependency downloader is a set of shell scripts that downloads dependency jar files from Maven and other repositories.

• GG for DAA uses a 3-step process to ingest parquet into OCI Object Storage buckets:
• Generating local files from trail files
• Converting local files to Parquet format
• Loading files into OCI Object Storage buckets

For generating local parquet files with GG for DAA, replicat uses File Writer Handler and Parquet Handler. To load the parquet files into GG for DAA uses OCI Event Handler in conjunction with File Writer and Parquet Event Handler.

GG for DAA uses 3 different set of client libraries to create parquet files and loading into AWS S3.

1. In your GG for DAA VM, go to dependency downloader utility. It is located at GG_HOME/opt/DependencyDownloader/
2. Run parquet.sh, hadoop.sh, and oracle_oci.sh with the required versions.

   Figure 8-59 Install required dependency files

   
3. 3 directories are created in GG_HOME/opt/DependencyDownloader/dependencies. Make a note of these directories.
   • /u01/app/ogg/opt/DependencyDownloader/dependencies/oracle_oci_3.2.0/*:
   • /u01/app/ogg/opt/DependencyDownloader/dependencies/hadoop_3.3.0/*:
   • /u01/app/ogg/opt/DependencyDownloader/dependencies/parquet_1.12.3/*

You need to create a configuration file to authenticate into OCI. The ideal configuration file include user, fingerprint, and key_file, tenancy, and region with their respective values. The default configuration file name and location is ~/.oci/config. You can refer to required keys and ocids document for details.

Sample config file

[DEFAULT]
user=<your_user_ocid>
fingerprint=<your_fingerprint>
key_file=~/.oci/oci_api_key.pem #path-to_your_key_file
tenancy=<your_tenancy_ocid>

1. Go to Administration Service and click + sign to add a replicat.

   Figure 8-60 Administration Service

   
2. Select the ReplicatType and click Next

   There are two different Replicat types available: Classic and Coordinated. Classic Replicat is a single threaded process whereas Coordinated Replicat is a multithreaded one that applies transactions in parallel. Coordinated Replicat results in multiple files being created as there is a multithreaded process running.

   Figure 8-61 Replicat Information

   
3. Enter the Replicat Options and click Next.
   • Replicat Trail: Name of the required trail file. For sample trail, provide tr.
   • Subdirectory: Enter GG_HOME/opt/AdapterExamples/trail/ if using the sample trail.
   • Target: OCI Object Storage
   • Format: Select the file format.

   Figure 8-62 Replicat Options

   
4. Leave Managed Options as is and click Next.

   Figure 8-63 Managed Options

   
5. Enter Parameter File details and click Next.

   In the Parameter File, you can either specify source to target mapping or leave it as-is with a wildcard selection. If Coordinated Replicat is selected as the Replicat Type, an additional parameter needs to be provided:

   TARGETDB LIBFILE libggjava.so SET property=<ggbd-deployment_home>/etc/conf/ogg/your_replicat_name.properties

   Figure 8-64 Parameter File

   
6. In Properties File, update the properties marked as #TODO and click Create and Run.

   # Properties file for Replicat 
   
   # Configuration to load GoldenGate trail operation records
   # into OCI Object storage by chaining
   # File writer handler -> OCI Event handler.
   # Note: Recommended to only edit the configuration marked as TODO
   
   gg.target=oci
   
   #TODO: format can be 'parquet' or 'orc' or one of the pluggable formatter types. Default is 'parquet'.
   gg.format=parquet
   
   #TODO: Edit the OCI region
   gg.eventhandler.oci.region=<oci-region>
   #TODO: Edit the OCI compartment OCID
   gg.eventhandler.oci.compartmentID=<oci-compartment-ocid>
   #TODO: Edit the OCI bucket name
   gg.eventhandler.oci.bucketMappingTemplate=<oci-bucket-name>
   #TODO: Edit the OCI Config file path
   gg.eventhandler.oci.configFilePath=./oci/config
   #TODO: Edit to include the OCI Java SDK.
   gg.classpath= ./oci-java-sdk/lib/*:./oci-java-sdk/third-party/lib/*:/path/to/hadoop-deps/:/path/to/parquet_deps/*
   

7. If replicat starts successfully, then it is in running state. Go to action/details/statistics to see the replication statistics.

   Figure 8-65 Replication Statistics

   
8. Go to OCI console and check the bucket.

   Figure 8-66 OCI Console