Resilient Elasticsearch Client

A resilient Elasticsearch client for Java applications with connection pooling, thread-safe client management, and configurable timeouts.

Maven

<dependency>
    <groupId>io.github.blaspat</groupId>
    <artifactId>elasticsearchclient</artifactId>
    <version>1.0.4</version>
</dependency>

Features

• Thread-safe client pool — Uses ConcurrentHashMap for safe concurrent access
• Connection pooling — Configurable number of initial connections
• Round-robin load balancing — Clients are selected using atomic round-robin
• Configurable timeouts — Connection and socket timeouts via properties
• Graceful shutdown — All clients are properly closed via @PreDestroy

Configuration

elasticsearch:
  hosts: localhost:9200
  scheme: https
  username: elastic
  password: password
  connection:
    initConnections: 3
    connectTimeout: 5000
    socketTimeout: 30000

Usage

@Autowired
private ElasticsearchClientConfig elasticsearchClientConfig;

public void search() {
    ElasticsearchClient client = elasticsearchClientConfig.client();
    // use the client
}

Notes

• ⚠️ SSL certificate verification is disabled — this library trusts all certificates. Do NOT use in production without proper certificate management.
• Clients are properly closed on application shutdown via @PreDestroy.