open falcon java_open-falcon监控java详细配置

Java应用程序的监控可以通过Open-Falcon进行配置和实现。下面是一些详细的配置步骤：

1. 下载和安装Open-Falcon Agent

在Java应用程序所在服务器上下载和安装Open-Falcon Agent。

2. 配置Open-Falcon Agent

修改Open-Falcon Agent配置文件，添加如下配置项：

{
    "plugin": {
        "enabled": true,
        "dir": "/usr/local/open-falcon/agent/plugin"
    },
    "heartbeat": {
        "enabled": true,
        "addr": "127.0.0.1:6030",
        "interval": 60,
        "timeout": 1000
    },
    "transfer": {
        "enabled": true,
        "addrs": [
            "127.0.0.1:8433"
        ],
        "interval": 60,
        "timeout": 1000
    }
}

其中，`plugin.enabled`设置为`true`表示启用插件，`plugin.dir`设置插件所在目录。

3. 下载和安装Java插件

在Open-Falcon Agent所在服务器上下载和安装Java插件。

4. 配置Java插件

修改Java插件配置文件，添加如下配置项：

{
    "debug": true,
    "metric": {
        "step": 60,
        "prefix": "java."
    },
    "plugin": {
        "jvm": {
            "enabled": true,
            "bin": "/usr/local/java/bin/java",
            "option": "-classpath ${plugin_dir}/java-plugin.jar",
            "jmx_url": "service:jmx:rmi:///jndi/rmi://127.0.0.1:1099/jmxrmi",
            "metrics": [
                {
                    "name": "jvm.mem.heap_used",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Memory",
                    "attribute": "HeapMemoryUsage.used"
                },
                {
                    "name": "jvm.mem.heap_committed",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Memory",
                    "attribute": "HeapMemoryUsage.committed"
                },
                {
                    "name": "jvm.mem.heap_max",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Memory",
                    "attribute": "HeapMemoryUsage.max"
                },
                {
                    "name": "jvm.mem.non_heap_used",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Memory",
                    "attribute": "NonHeapMemoryUsage.used"
                },
                {
                    "name": "jvm.mem.non_heap_committed",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Memory",
                    "attribute": "NonHeapMemoryUsage.committed"
                },
                {
                    "name": "jvm.threads.count",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Threading",
                    "attribute": "ThreadCount"
                },
                {
                    "name": "jvm.threads.daemon_count",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Threading",
                    "attribute": "DaemonThreadCount"
                },
                {
                    "name": "jvm.threads.peak_count",
                    "type": "GAUGE",
                    "mbean": "java.lang:type=Threading",
                    "attribute": "PeakThreadCount"
                },
                {
                    "name": "jvm.gc.young_count",
                    "type": "COUNTER",
                    "mbean": "java.lang:type=GarbageCollector,name=PS Scavenge",
                    "attribute": "CollectionCount"
                },
                {
                    "name": "jvm.gc.young_time",
                    "type": "COUNTER",
                    "mbean": "java.lang:type=GarbageCollector,name=PS Scavenge",
                    "attribute": "CollectionTime"
                },
                {
                    "name": "jvm.gc.old_count",
                    "type": "COUNTER",
                    "mbean": "java.lang:type=GarbageCollector,name=PS MarkSweep",
                    "attribute": "CollectionCount"
                },
                {
                    "name": "jvm.gc.old_time",
                    "type": "COUNTER",
                    "mbean": "java.lang:type=GarbageCollector,name=PS MarkSweep",
                    "attribute": "CollectionTime"
                }
            ]
        }
    }
}

其中，`plugin.jvm.enabled`设置为`true`表示启用Java插件，`plugin.jvm.bin`设置Java程序所在路径，`plugin.jvm.option`设置Java插件所在路径，`plugin.jvm.jmx_url`设置JMX URL，`plugin.jvm.metrics`设置监控指标。

5. 重启Open-Falcon Agent

修改完Open-Falcon Agent和Java插件的配置文件后，需要重启Open-Falcon Agent。

6. 查看监控数据

在Open-Falcon Web界面上查看Java应用程序的监控数据。