Restlight Endpoint扩展

在Spring Boot Actuator基础之上Restlight提供额外的功能扩展

业务线程池Metrics

Note

业务线程当前采用JUC的ThreadPoolExecutor实现，后续版本可能会换成自定义实现，因此Metrics内容可能发生变更

1、Json 格式

Get actuator/bizthreadpool

Example:

curl -X GET localhost:8080/actuator/bizthreadpool

{
    "corePoolSize": 4,
    "maxPoolSize": 4,
    "queueLength": 1024,
    "keepAliveTimeSeconds": 180,
    "activeCount": 1,
    "poolSize": 4,
    "largestPoolSize": 4,
    "taskCount": 6,
    "queueCount": 0,
    "completedTaskCount": 5
}

2、Prometheus 格式

Get actuator/bizthreadpool4prometheus

Example:

curl -X GET localhost:8080/actuator/bizthreadpool4prometheus

# HELP core_pool_size  
# TYPE core_pool_size gauge
core_pool_size 1.0
# HELP active_count  
# TYPE active_count gauge
active_count 0.0
# HELP queue_count  
# TYPE queue_count gauge
queue_count 0.0
# HELP largest_pool_size  
# TYPE largest_pool_size gauge
largest_pool_size 0.0
# HELP reject_task_count  
# TYPE reject_task_count gauge
reject_task_count -1.0
# HELP max_pool_size  
# TYPE max_pool_size gauge
max_pool_size 2.0
# HELP pool_size  
# TYPE pool_size gauge
pool_size 0.0
# HELP queue_length  
# TYPE queue_length gauge
queue_length 1024.0
# HELP keep_alive_time_seconds  
# TYPE keep_alive_time_seconds gauge
keep_alive_time_seconds 60.0
# HELP task_count  
# TYPE task_count gauge
task_count 0.0
# HELP completed_task_count  
# TYPE completed_task_count gauge
completed_task_count 0.0

业务线程池扩缩容

Post actuator/bizthreadpool

curl -X POST -H "Content-Type:application/json" -d "{\"corePoolSize\":\"1\",\"maxPoolSize\":\"2\"}" localhost:8080/actuator/bizthreadpool

IO线程池Metrics

1、Json 格式

Get actuator/ioexecutor

Example:

curl -X GET localhost:8080/actuator/ioexecutor

{
    "childExecutors": [
        {
            "pendingTasks": 0,
            "maxPendingTasks": 2147483647,
            "ioRatio": 50,
            "taskQueueSize": 0,
            "tailTaskQueueSize": 0,
            "threadName": "Netty-I/O-1#0",
            "threadPriority": 5,
            "threadState": "RUNNABLE"
        },
        {
            "pendingTasks": 0,
            "maxPendingTasks": 2147483647,
            "ioRatio": 50,
            "taskQueueSize": 0,
            "tailTaskQueueSize": 0,
            "threadName": "Netty-I/O-1#1",
            "threadPriority": 5,
            "threadState": "RUNNABLE"
        }
    ],
    "threadCount": 2,
    "pendingTasks": 0,
    "threadStates": {
        "RUNNABLE": 2
    },
    "terminated": false,
    "shutDown": false
}

2、Prometheus 格式

Get actuator/ioexecutor4prometheus

Example:

curl -X GET localhost:8080/actuator/ioexecutor4prometheus

# HELP pending_tasks_netty_io_1_0  
# TYPE pending_tasks_netty_io_1_0 gauge
pending_tasks_netty_io_1_0 0.0
# HELP thread_state_netty_io_1_1  
# TYPE thread_state_netty_io_1_1 gauge
thread_state_netty_io_1_1 1.0
# HELP thread_states_runnable  
# TYPE thread_states_runnable gauge
thread_states_runnable 2.0
# HELP task_queue_size_netty_io_1_1  
# TYPE task_queue_size_netty_io_1_1 gauge
task_queue_size_netty_io_1_1 0.0
# HELP thread_priority  
# TYPE thread_priority gauge
thread_priority 5.0
# HELP pending_tasks_netty_io_1_1  
# TYPE pending_tasks_netty_io_1_1 gauge
pending_tasks_netty_io_1_1 0.0
# HELP pending_tasks  
# TYPE pending_tasks gauge
pending_tasks 0.0
# HELP terminated  
# TYPE terminated gauge
terminated 0.0
# HELP max_pending_tasks  
# TYPE max_pending_tasks gauge
max_pending_tasks 2.147483647E9
# HELP thread_state_netty_io_1_0  
# TYPE thread_state_netty_io_1_0 gauge
thread_state_netty_io_1_0 1.0
# HELP io_ratio  
# TYPE io_ratio gauge
io_ratio 50.0
# HELP shutdown  
# TYPE shutdown gauge
shutdown 0.0
# HELP task_queue_size_netty_io_1_0  
# TYPE task_queue_size_netty_io_1_0 gauge
task_queue_size_netty_io_1_0 0.0
# HELP thread_count  
# TYPE thread_count gauge
thread_count 2.0

warning

比较昂贵的操作，不建议频繁调用

当使用的Springboot版本为2.3.X及以上时，需要在pom文件中引入micrometer-registry-prometheus 1.5.1及以上版本，此处以1.5.1版本为例，直接引入即可覆盖原有版本，具体操作如下：

<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
    <version>1.5.1</version>
</dependency>

获取Restlight所有配置信息

Get actuator/restlightconfigs

Example:

curl -X GET localhost:8080/actuator/restlightconfigs

{
    "http2Enable": false,
    "useNativeTransports": false,
    "connectorThreads": 1,
    "ioThreads": 2,
    "coreBizThreads": 4,
    "maxBizThreads": 4,
    "blockingQueueLength": 1024,
    "keepAliveTimeSeconds": 180,
    "executorTerminationTimeoutSeconds": 60,
    "compress": false,
    "decompress": false,
    "maxContentLength": 4194304,
    "maxInitialLineLength": 4096,
    "maxHeaderSize": 8192,
    "soRcvbuf": 0,
    "soSendbuf": 0,
    "soBacklog": 128,
    "writeBufferHighWaterMark": 65536,
    "idleTimeSeconds": 60,
    "keepAliveEnable": true,
    "https": {
        "enable": false,
        "handshakeTimeoutMillis": 3000,
        "certificatePath": null,
        "privateKeyPath": null,
        "sessionTicketKeyPath": null,
        "sessionTimeoutSeconds": 0,
        "sessionCacheEnable": false,
        "sessionCacheSize": 0,
        "enabledCipherSuites": [],
        "enabledProtocols": []
    },
    "scheduling": {
        "defaultStrategy": "BIZ",
        "bufferSize": 4096,
        "batchingSize": 50
    },
    "route": {
        "useCachedRouting": true,
        "cacheRatio": 10,
        "computeRate": 1
    },
    "contextPath": null,
    "validationMessageFile": null,
    "serialize": {
        "request": {
            "negotiation": false,
            "negotiationParam": "format"
        },
        "response": {
            "negotiation": false,
            "negotiationParam": "format"
        }
    },
    "ext": {},
    "host": null,
    "port": 8080,
    "unixDomainSocketFile": null,
    "printBanner": true,
    "warmUp": {
        "enable": false,
        "delay": 0
    }
}

强制Full GC

Post actuator/forcefgc

Example:

curl -X POST localhost:8080/actuator/forcefgc

修改优雅停机等待时间

Post actuator/terminationtimeout。

Example：

curl -X POST -H "Content-Type:application/json" -d "{\"timeout\": 120}" localhost:8080/actuator/terminationtimeout

Success

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Last modified March 10, 2022: introduce docsy as the website framework and add docs-v1.0.0 (#120) (79630ff)