3.4. 检查代理和队列的健康状况

流程

1. 请参阅代理拓扑中可为特定代理（即 节点）运行的检查列表。

   $ <broker_instance_dir>/bin/artemis help check node

   您会看到输出来描述可与 artemis 检查节点命令一起使用的选项列表。

   NAME
           artemis check node - Check a node
   
   SYNOPSIS
           artemis check node [--backup] [--clientID <clientID>]
                   [--diskUsage <diskUsage>] [--fail-at-end] [--live]
                   [--memoryUsage <memoryUsage>] [--name <name>] [--password <password>]
                   [--peers <peers>] [--protocol <protocol>] [--silent]
                   [--timeout <timeout>] [--up] [--url <brokerURL>] [--user <user>]
                   [--verbose]
   
   OPTIONS
           --backup
               Check that the node has a backup
   
           --clientID <clientID>
               ClientID to be associated with connection
   
           --diskUsage <diskUsage>
               Disk usage percentage to check or -1 to use the max-disk-usage
   
           --fail-at-end
               If a particular module check fails, continue the rest of the checks
   
           --live
               Check that the node has a live
   
           --memoryUsage <memoryUsage>
               Memory usage percentage to check
   
           --name <name>
               Name of the target to check
   
           --password <password>
               Password used to connect
   
           --peers <peers>
               Number of peers to check
   
           --protocol <protocol>
               Protocol used. Valid values are amqp or core. Default=core.
   
           --silent
               It will disable all the inputs, and it would make a best guess for any required input
   
           --timeout <timeout>
               Time to wait for the check execution, in milliseconds
   
           --up
               Check that the node is started, it is executed by default if there are no other checks
   
           --url <brokerURL>
               URL towards the broker. (default: tcp://localhost:61616)
   
           --user <user>
               User used to connect
   
           --verbose
               Adds more information on the execution

2. 例如，检查本地代理的磁盘用量是否低于为代理配置的最大磁盘用量。

   $ <broker_instance_dir>/bin/artemis check node --url tcp://localhost:61616 --diskUsage -1
   
   Connection brokerURL = tcp://localhost:61616
   Running NodeCheck
   Checking that the disk usage is less then the max-disk-usage ... success
   Checks run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.065 sec - NodeCheck

   在前面的示例中，为 --diskUsage 选项指定 -1 的值意味着，实用程序会根据为代理配置 的最大 磁盘用量检查磁盘用量。代理的最大磁盘用量是使用 broker.xml 配置文件中的 max-disk-usage 参数进行配置。为 max-disk-usage 指定的值代表代理允许使用的可用物理磁盘空间百分比。

3. 查看您可以在代理拓扑中为特定队列运行的检查列表。

   $ <broker_instance_dir>/bin/artemis help check queue

   您看到输出来描述可与 artemis 检查队列命令一起使用的选项列表。

   NAME
           artemis check queue - Check a queue
   
   SYNOPSIS
           artemis check queue [--browse <browse>] [--clientID <clientID>]
                   [--consume <consume>] [--fail-at-end] [--name <name>]
                   [--password <password>] [--produce <produce>] [--protocol <protocol>]
                   [--silent] [--timeout <timeout>] [--up] [--url <brokerURL>]
                   [--user <user>] [--verbose]
   
   OPTIONS
           --browse <browse>
               Number of the messages to browse or -1 to check that the queue is
               browsable
   
           --clientID <clientID>
               ClientID to be associated with connection
   
           --consume <consume>
               Number of the messages to consume or -1 to check that the queue is consumable
   
           --fail-at-end
               If a particular module check fails, continue the rest of the checks
   
           --name <name>
               Name of the target to check
   
           --password <password>
               Password used to connect
   
           --produce <produce>
               Number of the messages to produce
   
           --protocol <protocol>
               Protocol used. Valid values are amqp or core. Default=core.
   
           --silent
               It will disable all the inputs, and it would make a best guess for any required input
   
           --timeout <timeout>
               Time to wait for the check execution, in milliseconds
   
           --up
               Check that the queue exists and is not paused, it is executed by default if there are no other checks
   
           --url <brokerURL>
               URL towards the broker. (default: tcp://localhost:61616)
   
           --user <user>
               User used to connect
   
           --verbose
               Adds more information on the execution

4. 实用程序可以通过单个命令执行多个选项。例如，要在本地代理的默认 helloworld 队列上检查 production、浏览和消耗 1000 个消息，请使用以下命令：

   $ <broker_instance_dir>/bin/artemis check queue --name helloworld --produce 1000 --browse 1000 --consume 1000
   
   Connection brokerURL = tcp://localhost:61616
   Running QueueCheck
   Checking that a producer can send 1000 messages to the queue helloworld ... success
   Checking that a consumer can browse 1000 messages from the queue helloworld ... success
   Checking that a consumer can consume 1000 messages from the queue helloworld ... success
   Checks run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.882 sec - QueueCheck

   在前面的示例中，观察您在运行队列检查时没有指定代理 URL。如果您没有明确指定 URL，实用程序将使用默认值 tcp://localhost:61616。