Hazelcast Platform

https://docs.hazelcast.com/hazelcast/5.7
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### Quickstart: Add repository and install Hazelcast Enterprise

Source: https://docs.hazelcast.com/hazelcast/5.7/kubernetes/helm-hazelcast-enterprise-chart

Adds the Hazelcast Helm chart repository, updates it, and installs Hazelcast Enterprise with a license key.

```shell
helm repo add hazelcast https://hazelcast-charts.s3.amazonaws.com/
helm repo update
helm install my-release hazelcast/hazelcast-enterprise --set hazelcast.licenseKey=<LICENSE_KEY>
```

--------------------------------

### Sample client startup logs

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/cplusplus

Example output showing lifecycle events, connection attempts, authentication, and member list when starting the client.

```Log
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:375] (Wed Nov 18 17:25:23 2022 +0300:3b11bea) LifecycleService::LifecycleEvent Client (75121987-12fe-4ede-860d-59222e6d3ef2) is STARTING
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:379] (Wed Nov 18 17:25:23 2022 +0300:3b11bea) LifecycleService::LifecycleEvent STARTING
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:387] LifecycleService::LifecycleEvent STARTED
18/11/2022 21:22:26.837 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/network.cpp:587] Trying to connect to Address[10.212.1.117:5701]
18/11/2022 21:22:26.840 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:411] LifecycleService::LifecycleEvent CLIENT_CONNECTED
18/11/2022 21:22:26.840 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/network.cpp:637] Authenticated with server  Address[:5701]:a27f900e-b1eb-48be-aa46-d7a4922ef704, server version: 4.2, local address: Address[10.212.1.116:37946]
18/11/2022 21:22:26.841 INFO: [139868341360384] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:881]

Members [1]  {
        Member[10.212.1.117]:5701 - a27f900e-b1eb-48be-aa46-d7a4922ef704
}

Started the Hazelcast C++ client instance hz.client_1
```

--------------------------------

### Install Hazelcast Go client

Source: https://docs.hazelcast.com/hazelcast/5.7/data-structures/set

Installs the Hazelcast Go client library using the go get command.

```shell
go get github.com/hazelcast/hazelcast-go-client
shellCopy__

```

--------------------------------

### C++ client authentication setup

Source: https://docs.hazelcast.com/hazelcast/5.7/getting-started/authenticate-client-tutorial

Create a C++ client with username/password credentials and cluster name 'hello-world'. Requires installing the latest C++ client library.

```cpp
    hazelcast::client::client_config clientConfig;

    clientConfig.set_credentials(
            std::make_shared<hazelcast::client::security::username_password_credentials>("member1", "s3crEtPassword*"));

    clientConfig.set_cluster_name("hello-world");

    auto hz = hazelcast::new_client(std::move(clientConfig)).get();
cppCopy__
```

--------------------------------

### Go client authentication setup

Source: https://docs.hazelcast.com/hazelcast/5.7/getting-started/authenticate-client-tutorial

Create a Go client with cluster name 'hello-world' and credentials 'member1'/'s3crEtPassword*'. Requires initializing a Go module and installing hazelcast-go-client.

```go
package main

import (
	"context"

	"github.com/hazelcast/hazelcast-go-client"
)

func main() {
	ctx := context.TODO()
	config := hazelcast.Config{}
	cc := &config.Cluster
	cc.Network.SetAddresses("127.0.0.1:5701")
	cc.Name = "hello-world"
	creds := &cc.Security.Credentials
	creds.Username = "member1"
	creds.Password = "s3crEtPassword*"
	client, err := hazelcast.StartNewClientWithConfig(ctx, config)
	if err != nil {
		panic(err)
	}
	client.Shutdown(ctx)
}
goCopy__
```

--------------------------------

### Maven Version Output Example

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/stream-processing-client

Example output from running mvn -v when Maven is installed. Shows Maven version, Java version, and OS details.

```text
Apache Maven 3.8.1 (05c21c65bdfed0f71a2f2ada8b84da59348c4c5d)
Maven home: /usr/local/Cellar/maven/3.8.1/libexec
Java version: 16.0.1, vendor: Homebrew, runtime: /usr/local/Cellar/openjdk/16.0.1/libexec/openjdk.jdk/Contents/Home
Default locale: en_GB, platform encoding: UTF-8
OS name: "mac os x", version: "10.15.7", arch: "x86_64", family: "mac"
```

--------------------------------

### MySQL container startup output

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/cdc

Example output shown after starting the MySQL container. The last line indicates the MySQL server is running and ready for use.

```text
...
2020-03-09T09:48:24.579480Z 0 [Note] mysqld: ready for connections.
Version: '5.7.29-log'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)
```

--------------------------------

### Java client authentication setup

Source: https://docs.hazelcast.com/hazelcast/5.7/getting-started/authenticate-client-tutorial

Create a Java client with cluster name 'hello-world' and username/password identity config. Requires installing the Java client library.

```java
import com.hazelcast.client.HazelcastClient;
import com.hazelcast.client.config.ClientConfig;

public class SecuredClient {
  public static void main(String[] args) {

ClientConfig clientConfig = new ClientConfig();
        clientConfig.setClusterName("hello-world");
        clientConfig.getSecurityConfig().setUsernamePasswordIdentityConfig("member1","s3crEtPassword*");
        HazelcastClient.newHazelcastClient(clientConfig);

  }
}
javaCopy__
```

--------------------------------

### C# client authentication setup

Source: https://docs.hazelcast.com/hazelcast/5.7/getting-started/authenticate-client-tutorial

Create a C# client with username/password credentials. Requires installing the latest C Sharp client library.

```csharp
var username = "member1";
var password = "s3crEtPassword*";

var options = new HazelcastOptionsBuilder();
    .With(o => {
        o.Authentication.ConfigureUsernamePasswordCredentials(username, password);
    })
    .Build();

var client = await HazelcastClientFactory.StartNewClientAsync(options);
csCopy__
```

--------------------------------

### Create and use a MultiMap with the Go client

Source: https://docs.hazelcast.com/hazelcast/5.7/data-structures/multimap

Install the Go client library and create a MultiMap, add entries, get values for key 'a', and print the values.

```shell
go get github.com/hazelcast/hazelcast-go-client
```

```go
package main

import (
	"context"
	"fmt"
	"log"
	"math/rand"
	"time"

	"github.com/hazelcast/hazelcast-go-client"
)

func main() {
	ctx := context.TODO()
	client, err := hazelcast.StartNewClient(ctx)
	if err != nil {
		log.Fatal(err)
	}

	rand.Seed(time.Now().Unix())
	mapName := fmt.Sprintf("sample-%d", rand.Int())
	m, err := client.GetMultiMap(ctx, mapName)
	if err != nil {
		log.Fatal(err)
	}

	success, err := m.Put(ctx, "a", "1")
	if err != nil {
		log.Fatal(err)
	}
	if !success {
		log.Fatal("multi-map put operation failed")
	}
	success, err = m.Put(ctx, "a", "2")
	if err != nil {
		log.Fatal(err)
	}
	if !success {
		log.Fatal("multi-map put operation failed")
	}
	success, err := m.Put(ctx, "b", "1")
	if err != nil {
		log.Fatal(err)
	}
	if !success {
		log.Fatal("multi-map put operation failed")
	}

	values, err := m.Get(ctx, "a")
	if err != nil {
		log.Fatal(err)
	}

	fmt.Printf("%#v", values)
}
```

--------------------------------

### Initialize Go module

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/go-client-getting-started

Initializes a new Go module named 'example'.

```bash
go mod init example
```

--------------------------------

### Install godoc with go get

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/go

Installs godoc, which is not installed by default with the base Go distribution, using the go get command.

```bash
go get -u golang.org/x/tools/...`
```

--------------------------------

### Install Hazelcast Go client with go get

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/go

Installs the Hazelcast Go client as a dependency in a Go module-enabled project.

```text
go get github.com/hazelcast/hazelcast-go-client@latest
```

--------------------------------

### Start tutorial environment with Docker Compose

Source: https://docs.hazelcast.com/hazelcast/5.7/data-structures/vector-search-tutorial

Starts the Hazelcast tutorial environment in detached mode.

```bash
docker compose up -d
```

--------------------------------

### GET license response 200

Source: https://docs.hazelcast.com/hazelcast/5.7/maintain-cluster/rest-api-swagger

Example response body for the GET /hazelcast/rest/api/v1/cluster/license endpoint when the license is retrieved successfully (HTTP 200).

```json
{
  "expirationTimeMs": 4097606399999,
  "maxNodeCountAllowed": 99,
  "allowedTieredStoreSize": 0,
  "allowedNativeMemorySize": 100,
  "allowedTpcCores": 0,
  "keyHash": "9ZAG+TXHy0PrAEakoikYri8WNTFeaJYMeLvsGavEp48=",
  "features": [
    "Management Center",
    "Clustered JMX",
    "Clustered REST",
    "Security",
    "WAN Replication",
    "High Density Memory",
    "Persistence",
    "Rolling Upgrade",
    "Cluster Client Filtering",
    "CP Subsystem Persistence"
  ]
}
```

--------------------------------

### Create and enter project directory

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/nodejs-client-getting-started

Creates and navigates into a new directory for the Hazelcast Node.js client example project.

```bash
mkdir hazelcast-nodejs-example
cd hazelcast-nodejs-example
```

--------------------------------

### Java SpyMemcached client example

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/memcache

Java client example using SpyMemcached. It connects to two members and performs a set with a 3600-second expiration and a get.

```java
MemcachedClient client = new MemcachedClient(
    AddrUtil.getAddresses( "10.20.17.1:5701 10.20.17.2:5701" ) );
client.set( "key1", 3600, "value1" );
System.out.println( client.get( "key1" ) );
```

--------------------------------

### Run the Go client example

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/go-client-getting-started

Runs the Go script to verify the connection to your Hazelcast cluster.

```bash
go run example.go
```

--------------------------------

### GET log-level response example

Source: https://docs.hazelcast.com/hazelcast/5.7/maintain-cluster/rest-api-swagger

Response body for a successful GET request to /hazelcast/rest/api/v1/cluster/log-level. The logLevel field contains the current log level, e.g., INFO.

```json
{
  "logLevel": "INFO"
}
```

--------------------------------

### Start Hazelcast 4.2.7 source cluster on 127.0.0.1:5701

Source: https://docs.hazelcast.com/hazelcast/5.7/migrate/data-migration-tool

Example command to start a version 4.2.7 source cluster on IP address 127.0.0.1 and port 5701.

```shell
docker run -p 127.0.0.1:5701:5701 -e HZ_CLUSTERNAME=source hazelcast/hazelcast:4.2.7
```

--------------------------------

### Create and enter project directory

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/python-client-getting-started

Creates a new folder and navigates into it for the Hazelcast Python client example.

```bash
mkdir hazelcast-python-example
cd hazelcast-python-example
```

--------------------------------

### Keystore file name

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/csharp-client-getting-started

Lists the keystore file needed for the tutorial, which should be extracted into the project directory.

```bash
client.pfx

```

--------------------------------

### Get map proxy with blocking()

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/python-client-getting-started

Returns a map proxy object for the 'cities' map. If the map doesn't exist, it is automatically created. The blocking() method provides synchronous calls, suitable for getting started.

```python
cities_map = client.get_map('cities').blocking()
pythonCopy__
```

--------------------------------

### Second Consumer Output

Source: https://docs.hazelcast.com/hazelcast/5.7/data-structures/queue

Example output from the second consumer when it is started, showing consumed item numbers.

```text
...
Consumed 14
Consumed 16
Consumed 18
...

```

--------------------------------

### Create example.cpp with Hazelcast C++ client

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/cpp-client-getting-started

This code creates a Hazelcast client with default configuration, sets the cluster name and discovery token, configures SSL using CA, certificate, and key files, connects to the cluster, prints a welcome message, and shuts down. Replace placeholders like <YOUR_CLUSTER_ID>, <YOUR_DISCOVERY_TOKEN>, and <YOUR_CERTIFICATE_PASSWORD> with your actual values. The SSL files ca.pem, cert.pem, and key.pem must be present in the working directory.

```cpp
#include <string>
#include <hazelcast/client/hazelcast_client.h>

int
main(int argc, char** argv)
{
    hazelcast::client::client_config config;

    // Cluster Name and Token
    config.set_cluster_name("<YOUR_CLUSTER_ID>");
    auto& cloud_configuration = config.get_network_config().get_cloud_config();
    cloud_configuration.enabled = true;
    cloud_configuration.discovery_token = "<YOUR_DISCOVERY_TOKEN>";

    // configure SSL
    boost::asio::ssl::context ctx(boost::asio::ssl::context::tlsv12);

    try {
        ctx.load_verify_file("ca.pem");
        ctx.use_certificate_file("cert.pem", boost::asio::ssl::context::pem);
        ctx.set_password_callback(
          [&](std::size_t max_length,
              boost::asio::ssl::context::password_purpose purpose) {
              return "<YOUR_CERTIFICATE_PASSWORD>";
          });
        ctx.use_private_key_file("key.pem", boost::asio::ssl::context::pem);
    } catch (std::exception& e) {
        std::cerr << "You should copy ca.pem, cert.pem and key.pem files to "
                     "the working directory, exception cause "
                  << e.what() << std::endl;
        exit(EXIT_FAILURE);
    }
    config.get_network_config().get_ssl_config().set_context(std::move(ctx));

    // Connect to your Hazelcast Cluster
    auto client = hazelcast::new_client(std::move(config)).get();

    // take actions
    std::cout << "Welcome to your Hazelcast Cluster!" << std::endl;

    // Shutdown the client connection
    client.shutdown().get();
}
```

--------------------------------

### Add Hazelcast Helm repository and install chart

Source: https://docs.hazelcast.com/hazelcast/5.7/kubernetes/helm-hazelcast-chart

Adds the Hazelcast Helm chart repository and installs the chart with the release name 'my-release'. Run 'helm repo add' again if you previously added the repo to get the latest charts.

```shell
helm repo add hazelcast https://hazelcast-charts.s3.amazonaws.com/
helm repo update
helm install my-release hazelcast/hazelcast
```

--------------------------------

### Create project folder

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/csharp-client-getting-started

Creates a new folder and navigates into it for the Hazelcast .NET client example project.

```bash
mkdir hazelcast-csharp-example
cd hazelcast-csharp-example

```

--------------------------------

### Hazelcast SQL API Java client example with Compact serialization

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/java-client-getting-started

Java client example that connects to a Hazelcast cluster using SSL and Compact serialization, creates a mapping for a map, and inserts city data. The snippet is truncated at the start of the insertCities method; the full example continues with the delete and insert queries.

```java
import java.util.Properties;

import com.hazelcast.client.HazelcastClient;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.config.SSLConfig;
import com.hazelcast.core.HazelcastInstance;

import com.hazelcast.nio.serialization.compact.CompactReader;
import com.hazelcast.nio.serialization.compact.CompactSerializer;
import com.hazelcast.nio.serialization.compact.CompactWriter;
import com.hazelcast.sql.SqlResult;
import com.hazelcast.sql.SqlRow;
import com.hazelcast.sql.SqlService;

public class Example {

    public final class CityDTO {

        private final String country;

        private final String city;

        private final int population;

        public CityDTO(String country, String city, int population) {
            this.country = country;
            this.city = city;
            this.population = population;
        }

        public String getCountry() {
            return country;
        }

        public String getCity() {
            return city;
        }

        public int getPopulation() {
            return population;
        }
    }

    public final class CitySerializer implements CompactSerializer<CityDTO> {
        @Override
        public CityDTO read(CompactReader compactReader) {
            return new CityDTO(compactReader.readString("country"),
                            compactReader.readString("city"),
                            compactReader.readInt32("population"));
        }

        @Override
        public void write(CompactWriter compactWriter, CityDTO city) {
            compactWriter.writeString("country", city.getCountry());
            compactWriter.writeString("city", city.getCity());
            compactWriter.writeInt32("population", city.getPopulation());
        }

        @Override
        public String getTypeName() {
            return "CityDTO";
        }

        @Override
        public Class<CityDTO> getCompactClass() {
            return CityDTO.class;
        }
    }

    public static void main(String[] args) throws Exception {
        ClientConfig config = new ClientConfig();

        // Connection details for cluster
        config.setClusterName("<YOUR_CLUSTER_ID>");

        config.getNetworkConfig().getCloudConfig()
                .setDiscoveryToken("<YOUR_DISCOVERY_TOKEN>")
                .setEnabled(true);

        ClassLoader classLoader = Example.class.getClassLoader();
        Properties props = new Properties();
        props.setProperty("javax.net.ssl.keyStore", classLoader.getResource("client.keystore").toURI().getPath());
        props.setProperty("javax.net.ssl.keyStorePassword", "<YOUR_CERTIFICATE_PASSWORD>");
        props.setProperty("javax.net.ssl.trustStore", classLoader.getResource("client.truststore").toURI().getPath());
        props.setProperty("javax.net.ssl.trustStorePassword", "<YOUR_CERTIFICATE_PASSWORD>");
        config.getNetworkConfig().setSSLConfig(new SSLConfig().setEnabled(true).setProperties(props));

        // Register Compact Serializers
        config.getSerializationConfig().getCompactSerializationConfig()
            .addSerializer(new Example().new CitySerializer());

        // Connect to your Hazelcast Cluster
        HazelcastInstance client = HazelcastClient.newHazelcastClient(config);

        try {
            // Create a map on the cluster
            createMapping(client.getSql());

            // Add some data
            insertCities(client);

            // Output the data
            fetchCities(client.getSql());

        } finally {
            client.shutdown();
        }
    }

    private static void createMapping(SqlService sqlService) {
        // See: https://docs.hazelcast.com/hazelcast/latest/sql/mapping-to-maps#compact-objects
        System.out.print("\nCreating mapping...");

        String mappingSql = ""
                + "CREATE OR REPLACE MAPPING cities("
                + "     __key INT,"
                + "     country VARCHAR,"
                + "     city VARCHAR,"
                + "     population INT"
                + ") TYPE IMap"
                + " OPTIONS ("
                + "     'keyFormat' = 'int',"
                + "     'valueFormat' = 'compact',"
                + "     'valueCompactTypeName' = 'Example$CityDTO'"
                + " )";

        try (SqlResult ignored = sqlService.execute(mappingSql)) {
            System.out.print("OK.");
        } catch (Exception ex) {
            System.out.print("FAILED. " + ex.getMessage());
        }
    }

    private static void insertCities(HazelcastInstance client) {
        try {
            String deleteQuery = "DELETE from cities";

```

--------------------------------

### First Consumer Output

Source: https://docs.hazelcast.com/hazelcast/5.7/data-structures/queue

Example output from the first consumer when a second consumer is started, showing consumed item numbers.

```text
...
Consumed 13
Consumed 15
Consumed 17
...

```

--------------------------------

### Start Hazelcast with bin/hz-start

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/cdc

Starts Hazelcast. After running this command, wait for output indicating that Hazelcast is up.

```bash
bin/hz-start
bashCopy__

```

--------------------------------

### Node.js client authentication setup

Source: https://docs.hazelcast.com/hazelcast/5.7/getting-started/authenticate-client-tutorial

Create a Node.js client with username/password credentials. Requires installing hazelcast-client via npm.

```javascript
const config = {
    security: {
        usernamePassword: {
            username: 'member1',
            password: 's3crEtPassword*'
        }
    }
};
const client = await Client.newHazelcastClient(cfg);
javascriptCopy__
```

--------------------------------

### NodeLifecycleListener class implementing LifecycleListener

Source: https://docs.hazelcast.com/hazelcast/5.7/events/cluster-events

Example listener class that prints lifecycle events to stderr. The listener is local to an individual member and notifies the application about events such as STARTING, STARTED, SHUTTING_DOWN, SHUTDOWN, MERGING, MERGED, CLIENT_CONNECTED, CLIENT_DISCONNECTED, and CLIENT_CHANGED_CLUSTER.

```java
public class NodeLifecycleListener implements LifecycleListener {
     @Override
     public void stateChanged(LifecycleEvent event) {
         System.err.println(event);
     }
}
```

--------------------------------

### Create project directory

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/java-client-getting-started

Creates and navigates into a new directory for the Hazelcast Java client example project.

```bash
mkdir hazelcast-java-example
cd hazelcast-java-example
```

--------------------------------

### Start Kafka broker with Docker

Source: https://docs.hazelcast.com/hazelcast/5.7/sql/learn-sql

Runs a Kafka broker container on the hazelcast-network. Use --platform=linux/amd64 on M1 Macs if you get an error.

```bash
docker run --name kafka --network hazelcast-network --rm hazelcast/hazelcast-quickstart-kafka
```

--------------------------------

### Full example: Connect, create map, add entries, and iterate

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/python-client-getting-started

Complete example showing how to connect to a Hazelcast cluster with SSL, create a map, clear it, add entries, retrieve them, and shut down the client. The map is created automatically if it doesn't exist.

```python
import hazelcast
import os

####################################

# Connect to your Hazelcast Cluster
client = hazelcast.HazelcastClient(
    # Cluster Name and Token
    cluster_name="<YOUR_CLUSTER_ID>",
    cloud_discovery_token="<YOUR_DISCOVERY_TOKEN>",

    # configure SSL
    ssl_enabled=True,
    ssl_cafile=os.path.abspath("ca.pem"),
    ssl_certfile=os.path.abspath("cert.pem"),
    ssl_keyfile=os.path.abspath("key.pem"),
    ssl_password="<YOUR_CERTIFICATE_PASSWORD>",
)

# Create a map on the cluster
cities_map = client.get_map('cities').blocking()

# Clear the map
cities_map.clear()

# Add some data
cities_map.put(1, "London")
cities_map.put(2, "New York")
cities_map.put(3, "Tokyo")

# Output the data
entries = cities_map.entry_set()

for key, value in entries:
    print(f"{key} -> {value}")

# Shutdown the client connection
client.shutdown()
pythonCopy__
```

--------------------------------

### Possible output for distinct with grouping

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/transforms

Possible output of the distinct-with-grouping example. Hazelcast can choose any of the names starting with 'j', so the output may vary.

```text
14:05:29.382 [ INFO] [c.h.j.i.c.W.loggerSink#0] joe
14:05:29.383 [ INFO] [c.h.j.i.c.W.loggerSink#0] maria
```

--------------------------------

### Example instance tracking output for a client instance

Source: https://docs.hazelcast.com/hazelcast/5.7/maintain-cluster/monitoring

Example output file content when running a client instance. The JSON contains product, version, pid, mode, start_timestamp, and licensed fields.

```json
{"product":"Hazelcast", "version":5.7, "pid":27746, "mode":"client", "start_timestamp":1595851430741, "licensed":0}
```

--------------------------------

### Install with values file

Source: https://docs.hazelcast.com/hazelcast/5.7/kubernetes/helm-hazelcast-enterprise-chart

Installs the chart using a YAML file that specifies parameter values.

```shell
helm install my-release hazelcast/hazelcast-enterprise -f values.yaml
```

--------------------------------

### Sample pipeline output

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/python

Example log output from the pipeline showing square roots of numbers. The output appears in the window where Hazelcast was started.

```text
15:41:58.411 [ INFO] ... sqrt(0) = 0.00
15:41:58.411 [ INFO] ... sqrt(1) = 1.00
15:41:58.411 [ INFO] ... sqrt(2) = 1.41
15:41:58.411 [ INFO] ... sqrt(3) = 1.73
15:41:58.411 [ INFO] ... sqrt(4) = 2.00
15:41:58.411 [ INFO] ... sqrt(5) = 2.24
15:41:58.411 [ INFO] ... sqrt(6) = 2.45
15:41:58.411 [ INFO] ... sqrt(7) = 2.65

```

--------------------------------

### Hazelcast startup output

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/cdc-join

Example output from bin/hz-start indicating Hazelcast is up and the member has joined the cluster.

```text
Members {size:1, ver:1} [
    Member [192.168.1.5]:5701 - e7c26f7c-df9e-4994-a41d-203a1c63480e this
]

```

--------------------------------

### Start PostgreSQL container with Debezium example image

Source: https://docs.hazelcast.com/hazelcast/5.7/pipelines/cdc-postgres

Runs a Docker container with the debezium/example-postgres:1.2 image, preconfigured with an inventory database. The command maps port 5432 and sets environment variables for the database name, user, and password.

```bash
docker run -it --rm --name postgres -p 5432:5432 \
    -e POSTGRES_DB=postgres -e POSTGRES_USER=postgres \
    -e POSTGRES_PASSWORD=postgres debezium/example-postgres:1.2
bashCopy__
```

--------------------------------

### Basic usage output: client lifecycle and personnel_map entries

Source: https://docs.hazelcast.com/hazelcast/5.7/clients/cplusplus

Output from running the basic usage example. It shows the client lifecycle events (STARTING, STARTED, CLIENT_CONNECTED), authentication with server version 4.2, the cluster members list, and the printed IT personnel entries from the personnel_map.

```text
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:375] (Wed Nov 18 17:25:23 2022 +0300:3b11bea) LifecycleService::LifecycleEvent Client (75121987-12fe-4ede-860d-59222e6d3ef2) is STARTING
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:379] (Wed Nov 18 17:25:23 2022 +0300:3b11bea) LifecycleService::LifecycleEvent STARTING
18/11/2022 21:22:26.835 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:387] LifecycleService::LifecycleEvent STARTED
18/11/2022 21:22:26.837 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/network.cpp:587] Trying to connect to Address[10.212.1.117:5701]
18/11/2022 21:22:26.840 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:411] LifecycleService::LifecycleEvent CLIENT_CONNECTED
18/11/2022 21:22:26.840 INFO: [139868602337152] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/network.cpp:637] Authenticated with server  Address[:5701]:a27f900e-b1eb-48be-aa46-d7a4922ef704, server version: 4.2, local address: Address[10.212.1.116:37946]
18/11/2022 21:22:26.841 INFO: [139868341360384] client_1[dev] [<i>5.x.x</i>] [/home/ihsan/hazelcast-cpp-client/hazelcast/src/hazelcast/client/spi.cpp:881]

Members [1]  {
        Member[10.212.1.117]:5701 - a27f900e-b1eb-48be-aa46-d7a4922ef704
}
Added IT personnel. Logging all known personnel
Amanda is in IT department
Olly is in IT department
Rob is in IT department
 Copy__
```
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