Releasing elasticsearch connection

Elastic Stack Elasticsearch
1

Hi,

I am deploying a webapp, which internally queries elasticsearch. I am
creating only one connection, and I want to close it when the webapp shuts
down. I am using singleton pattern for creating the ES client and how do I
destroy/close ES client? When the application shuts down, will the client
get closed or I have to specify it/ where should I have the code to close
the connection?

This is my code:

public class ESClientManager {

    public static Client client = null;
    private static Settings settings = null;
    private static Object mutex = new Object();
    private static final String CONFIG_CLUSTER_NAME = "cluster.name";
    private static final String CLUSTER_NAME = "qatool_es";
    private static final String[] transportAddress = {
           "127.0.0.1"
    };

    private static final int transportPort = 9300;

    private ESClientManager() {
    }

    public static Client getClient() {
        if (client == null) {
            synchronized (mutex) {
                settings = ImmutableSettings.settingsBuilder()
                        .put(CONFIG_CLUSTER_NAME, CLUSTER_NAME).build();

                client = new TransportClient(settings);
                for (int i = 0; i < transportAddress.length - 1; i++) {
                    ((TransportClient) client).addTransportAddress(new

InetSocketTransportAddress(transportAddress[i], transportPort));
}
logger.info("Elastic search client initialized");
}
}
logger.info("Returning the existing client");
return client;
}
}

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2

Have you try using client.close() ?

Jason

On Sun, Nov 30, 2014 at 8:23 PM, prachicsa@gmail.com wrote:

Hi,

I am deploying a webapp, which internally queries elasticsearch. I am
creating only one connection, and I want to close it when the webapp shuts
down. I am using singleton pattern for creating the ES client and how do I
destroy/close ES client? When the application shuts down, will the client
get closed or I have to specify it/ where should I have the code to close
the connection?

This is my code:

public class ESClientManager {

    public static Client client = null;
    private static Settings settings = null;
    private static Object mutex = new Object();
    private static final String CONFIG_CLUSTER_NAME = "cluster.name";
    private static final String CLUSTER_NAME = "qatool_es";
    private static final String[] transportAddress = {
           "127.0.0.1"
    };

    private static final int transportPort = 9300;

    private ESClientManager() {
    }

    public static Client getClient() {
        if (client == null) {
            synchronized (mutex) {
                settings = ImmutableSettings.settingsBuilder()
                        .put(CONFIG_CLUSTER_NAME,

CLUSTER_NAME).build();

                client = new TransportClient(settings);
                for (int i = 0; i < transportAddress.length - 1; i++) {
                    ((TransportClient) client).addTransportAddress(new

InetSocketTransportAddress(transportAddress[i], transportPort));
}
logger.info("Elastic search client initialized");
}
}
logger.info("Returning the existing client");
return client;
}
}

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For more options, visit https://groups.google.com/d/optout.

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