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Stackdriver-agent没有收集监控数据（KeyRache的HitRate）

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我正在GCE VM中配置Stackdriver-agent来监控Cassandra指标 . （基于GCP指南：https://cloud.google.com/monitoring/agent/plugins/cassandra）

我使用了上面链接的默认设置，它们工作正常 . 但是，我添加的一个指标不适用于以下错误 .

我为Type和Value或Count for Attribute尝试了计量器或计数器 . 但是，它们中的任何一个都不能很好地工作 .

请提出任何建议 .

  • 错误

Feb 19 23:14:08 pgxxxxxxx1 collectd [16917]：write_gcm：服务器响应（CollectdTimeseriesRequest）包含错误：{“payloadErrors”：[{“index”：161，“valueErrors”：[{“error”：{“code “：3，”message“：”不支持的collectd id：插件：\“cassandra \”type：\“gauge \”type_instance：\“cache_key_cache-hitrate \”“}}]}]}

配置（将KeyCache-Hitrate指标添加到指南中的原始配置）

  • 连接部分：
<Connection>
# When using non-standard Cassandra configurations, replace the below with
#ServiceURL "service:jmx:rmi:///jndi/rmi://CASSANDRA_HOST:CASSANDRA_PORT/jmxrmi"
ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:7199/jmxrmi"
InstancePrefix "cassandra"
User "cassandra"
Password "xxxxxxxx"
Collect "cassandra_storageservice-load"
Collect "cassandra_Cache_KeyCache-Hits"
Collect "cassandra_Cache_KeyCache-HitRate"   <===== Added line
...
Collect "cassandra_DroppedMessage_MUTATION-Dropped"
Collect "cassandra_DroppedMessage_READ-Dropped"
  • MBean部分：
<MBean "cassandra_Cache_KeyCache-HitRate">
    ObjectName "org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=HitRate"
    <Value>
        Type "gauge"
        InstancePrefix "cache_key_cache-hitrate"
        Table false
        Attribute "Value"
    </Value>
</MBean>

我的环境stackdriver-agent 5.5.2-379.sdl.stretch cassandra 3.11.1

cassandra collectd google-cloud-stackdriver

1 回答

  • 1

    遵循自定义指标指南，我可以解决我的问题 .

    还需要获得授权才能访问监控 . （按照IAM指南） .

    我的示例代码

    • 代码用于创建自定义指标client_request_read-latency-1minrate.py

    来自google.cloud导入监控

    client = monitoring.Client（）descriptor = client.metric_descriptor（'custom.googleapis.com/cassandra/client_request/latency/1minrate'，metric_kind = monitoring.MetricKind.GAUGE，value_type = monitoring.ValueType.DOUBLE，labels = [monitoring . label.LabelDescriptor（“operation”，description =“存储操作名称 . ”）]，description ='Cassandra读取延迟率1分钟'，display_name ='读取延迟1分钟速率'）descriptor.create（）

    • cassandra插件示例（在同一配置文件中的2-1和2-2之后）2-1 . cassandra插件示例第1部分
    <MBean "cassandra_custom_ClientRequest_Read-Latency">
     ObjectName "org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=Latency"
     <Value>
         Type "gauge"
         InstancePrefix "client_request_read-latency-1minrate"
         Table false
         Attribute "OneMinuteRate"
     </Value>
 </MBean>

<Connection>
    # When using non-standard Cassandra configurations, replace the below with
    #ServiceURL "service:jmx:rmi:///jndi/rmi://CASSANDRA_HOST:CASSANDRA_PORT/jmxrmi"
    ServiceURL "service:jmx:rmi:///jndi/rmi://localhost:7199/jmxrmi"
    InstancePrefix "cassandra_custom"
    User "cassandra user name"
    Password "your password"

    Collect "cassandra_custom_ClientRequest_Read-Latency"
</Connection>

    2-2 . cassandra插件示例第2部分

    <Chain "GenericJMX_cassandra_custom">
    <Rule "rewrite_genericjmx_to_cassandra_custom">
        <Match regex>
            Plugin "^GenericJMX$"
            PluginInstance "^cassandra_custom.*$"
        </Match>
        <Target "set">
            MetaData "stackdriver_metric_type" "custom.googleapis.com/cassandra/client_request/latency/1minrate"
            MetaData "label:operation" "%{plugin_instance}"
        </Target>
        <Target "replace">
            MetaData "label:operation" "cassandra_custom_" ""
        </Target>
    </Rule>
    <Rule "go_back">
        Target "return"
    </Rule>
</Chain>

<Chain "PreCache">
    <Rule "jump_to_GenericJMX_cassandra_custom">
        <Target "jump">
            Chain "GenericJMX_cassandra_custom"
        </Target>
    </Rule>
</Chain>
PreCacheChain "PreCache"

    Stackdriver监控手册的官方指南不易阅读和理解 . 我希望这个能帮上忙..

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