为了将Prometheus获取的redis监控数据存储到MySQL数据库中,需要使用以下工具和技术:
Prometheus:用于收集Redis监控数据,并将其暴露为HTTP接口。
Prometheus Java客户端库:用于从Prometheus HTTP接口获取数据。
MySQL数据库:用于存储Redis监控数据。
JDBC驱动程序:用于连接Java应用程序与MySQL数据库。
Java编程语言:用于编写Java应用程序来处理Redis监控数据并将其存储到MySQL数据库中。
下面是一个简单的示例代码,说明如何使用Java将Prometheus获取的redis监控数据存储到MySQL数据库中。
import io.prometheus.client.Counter;
import io.prometheus.client.Gauge;
import io.prometheus.client.exporter.HTTPResponse;
import io.prometheus.client.exporter.PushGateway;
import org.json.JSONArray;
import org.json.JSONObject;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class RedisMonitor {
private static final String PROMETHEUS_URL = "http://localhost:9090/";
private static final String PUSHGATEWAY_URL = "http://localhost:9091/";
private static final String MYSQL_DRIVER = "com.mysql.jdbc.Driver";
private static final String MYSQL_URL = "jdbc:mysql://localhost:3306/redis_monitor";
private static final String MYSQL_USER = "root";
private static final String MYSQL_PASSWORD = "password";
private static final Gauge redis_connections = Gauge.build()
.name("redis_connections")
.help("Number of connected clients to Redis")
.register();
private static final Counter redis_commands_total = Counter.build()
.name("redis_commands_total")
.help("Total number of Redis commands processed")
.register();
public static void main(String[] args) throws Exception {
// Create a Prometheus Java client and connect to the Prometheus HTTP API
Prometheus prometheus = new Prometheus(PROMETHEUS_URL);
// Query the Prometheus API to get the latest Redis monitoring data
JSONObject json = prometheus.query("redis_exporter");
// Parse the JSON response to extract the Redis monitoring metrics
JSONObject status = json.getJSONObject("status");
JSONArray data = json.getJSONArray("data");
int connected_clients = status.getInt("connected_clients");
double commands_processed = data.getJSONObject(0).getDouble("value");
// Update the Redis monitoring metrics in the Prometheus Gauge and Counter objects
redis_connections.set(connected_clients);
redis_commands_total.inc(commands_processed);
// Push the updated Redis monitoring metrics to the Prometheus Pushgateway
PushGateway pushGateway = new PushGateway(PUSHGATEWAY_URL);
pushGateway.pushAdd(prometheus.getRegistry(), "redis_monitoring");
// Store the Redis monitoring metrics in the MySQL database
Connection connection = null;
PreparedStatement statement = null;
try {
Class.forName(MYSQL_DRIVER);
connection = DriverManager.getConnection(MYSQL_URL, MYSQL_USER, MYSQL_PASSWORD);
String sql = "INSERT INTO redis_metrics (connected_clients, commands_processed) VALUES (?, ?)";
statement = connection.prepareStatement(sql);
statement.setInt(1, connected_clients);
statement.setDouble(2, commands_processed);
statement.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (statement != null) {
statement.close();
}
if (connection != null) {
connection.close();
}
}
}
}
在MySQL数据库中,您可以使用以下SQL语句来创建一个名为redis_metrics的表,用于存储Redis监控数据:
CREATE TABLE redis_metrics (
id INT(11) NOT NULL AUTO_INCREMENT,
connected_clients INT(11) DEFAULT '0',
commands_processed DOUBLE DEFAULT '0',
timestamp TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (id)
);
这个表有三个列:connected_clients(表示连接到Redis的客户端数量),commands_processed(表示处理的Redis命令总数)和timestamp(表示插入行的时间戳)。每当Java应用程序将新的Redis监控数据存储到MySQL数据库时,都会在redis_metrics表中添加一行。