Spanner - OpenCensus Example

About Cloud Spanner

Cloud Spanner is a fully managed, mission-critical, relational database service that offers transactional consistency at global scale, schemas, SQL (ANSI 2011 with extensions), and automatic, synchronous replication for high availability.

Be sure to activate the Cloud Spanner API on the Developer's Console to use Cloud Spanner from your project.

See the Spanner client lib docs to learn how to interact with Cloud Spanner using this Client Library.

Prerequisites

Please refer to the getting started guide.

Authentication

See the Authentication section in the base directory's README.

To build the example

Create a table named 'Players' in your database.

CREATE TABLE Players (
	id STRING(30) NOT NULL,
	name STRING(30),
	email STRING(30),
) PRIMARY KEY (id);

You may also populate it with a sample record.

INSERT INTO Players (id,name,email)
VALUES ('a','a','a@a.com');

Update the instance and database names in PersonController.java to your instance and database.

$ mvn clean package

To Run the example

$ mvn exec:java -Dexec.mainClass=com.example.spanner.App

Go to http://localhost:8080/spanner/ and, start sending read request.

OpenCensus agent

The ocagent can be run directly from sources, binary, or a Docker image. To install and build the agent, please follow the instructions from here

Running it

Edit the config in conf/config.yaml file to select the exporter of your choice. Run the following command to start the OpenCensus agent.

./bin/ocagent_darwin --config=/conf/config.yaml

cloudspannerecosystem/spanner-oc-java