This project runs OpenSearch cluster on one JVM instance for your development/testing easily. You can use OpenSearch Runner as Embedded OpenSearch in your application.
Put opensearch-runner if using Maven:
<dependency>
<groupId>org.codelibs.opensearch</groupId>
<artifactId>opensearch-runner</artifactId>
<version>x.x.x.0</version>
</dependency>
import static org.codelibs.opensearch.runner.OpenSearchRunner.newConfigs;
...
// create runner instance
OpenSearchRunner runner = new OpenSearchRunner();
// create ES nodes
runner.onBuild(new OpenSearchRunner.Builder() {
@Override
public void build(final int number, final Builder settingsBuilder) {
// put opensearch settings
// settingsBuilder.put("index.number_of_replicas", 0);
}
}).build(newConfigs());
build(Configs) method configures/starts Clsuter Runner.
// close runner
runner.close();
// delete all files(config and index)
runner.clean();
Put opensearch-runner as test scope:
<dependency>
<groupId>org.codelibs.opensearch</groupId>
<artifactId>opensearch-runner</artifactId>
<version>x.x.x.0</version>
<scope>test</scope>
</dependency>
and see OpenSearchRunnerTest.
Download and install Maven 3 from http://maven.apache.org/.
git clone https://github.com/codelibs/opensearch-runner.git
mvn compile
Run:
mvn exec:java
The default cluster has 3 nodes and the root directory for OpenSearch is es_home. Nodes use 9201-9203 port for HTTP and 9301-9303 port for Transport. If you want to change the number of node, Run:
mvn exec:java -Dexec.args="-basePath es_home -numOfNode 4"
Type Ctrl-c or kill the process.