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我正在尝试查看在任何给定时间有多少客户端连接到 Gemfire 服务器。我currentClientConnections文档中找到了,但不清楚如何读取这些数据。我尝试运行 VMWare VSD,但它在 Windows 下启动时崩溃。

任何想法如何访问这些数据?

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3 回答 3

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您可以使用show metricsGemFire Shellgfsh中的命令来获取 currentClientConnections,如下所示:

gfsh>show metrics --member=serv1 --port=40404

您可以在输出的缓存服务器部分看到 currentClientConnections:

<snip>
cache-server  | clientConnectionCount            | 0
              | hostnameForClients               |
              | getRequestAvgLatency             | 0
              | putRequestAvgLatency             | 0
              | totalConnectionsTimedOut         | 0
<snip>

更多信息gfsh可以在文档中找到。

于 2015-08-06T20:45:08.433 回答
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您还可以使用 JConsole 或其他 JMX 客户端通过 JMX 访问此信息。如果您直接连接到服务器节点,则可以访问该服务器的 GemFire MBean。如果您连接到 GemFire JMX Manager 节点(默认为 Locator),那么您将看到每个服务器节点的 DistributedMXBean 以及 MemberMXBeans 和 CacheServerMXBeans。

+GemFire
    +Distributed [1]
        +System --> DistributedSystemMXBean [2]
            ...getNumClients() [3]
    +Member [4]
        +member1 --> MemberMXBean [5]
        +member2 --> MemberMXBean [5]
        +CacheServer
            +2090
                +member1 --> CacheServerMXBean [6]
                    ..getClientConnectionCount() [7]
            +2091
                +member2 --> CacheServerMXBean [6]
                    ..getClientConnectionCount() [7]

[1] these MBeans are viewable only in the JMX Manager (Locator by default)
[2] ObjectName is GemFire:service=System,type=Distributed
[3] returns the total number of client connections across the entire cluster 
(number of client connections, not the number of unique clients)
[4] these MBeans are viewable in each server node as well as federated in the JMX Manager (Locator by default)
[5] ObjectName is GemFire:type=Member,member={0}
[6] ObjectName is GemFire:service=CacheServer,port={0},type=Member,member={1}
[7] returns the number of client connections for this server
于 2015-08-13T17:09:51.013 回答
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以下命令行对我有用:

watch -n1 "gemfire stats -archive=logs/server/stats/gemfire_stats.gfs | grep -i currentClientConnections"

意思是,它列出了所有统计信息,只打印 的值currentClientConnections,并每秒重复该过程。

于 2015-08-13T18:17:47.967 回答