Tomcat
本章节为 Cloud Insight 支持的平台服务的文档的示例。
目前能够想到的章节分为以下几个部分:
- 支持的性能指标
- 如何配置 Tomcat 监控
- 常见的问题
性能指标
- tomcat.bytes_rcvd
- tomcat.bytes_sent
- tomcat.error_count
- tomcat.max_time
- tomcat.processing_time
- tomcat.request_count
- tomcat.servlet.error_count
- tomcat.servlet.processing_time
- tomcat.servlet.request_count
- tomcat.threads.busy
- tomcat.threads.count
- tomcat.threads.max
- jvm.gc.cms.count
- jvm.gc.parnew.time
- jvm.heap_memory
- jvm.heap_memory_committed
- jvm.heap_memory_init
- jvm.heap_memory_max
- jvm.non_heap_memory
- jvm.non_heap_memory_committed
- jvm.non_heap_memory_init
- jvm.non_heap_memory_max
- jvm.thread_count
- jmx.catalina.jsp_count
- jmx.catalina.jsp_queue_length
- jmx.catalina.jsp_reload_count
- jmx.catalina.jsp_unload_count
配置 Tomcat 监控
启动 JMX Remote
OneAPM Cloud Insight Agent 通过 JMX 获取 Tomcat 中的性能指标,所以确保 JMX Remote 是 enabled
状态。
由于每个实体最多可以监控 350 个性能指标,所以您需要按照下方的配置方法,修改配置文件来确定自己需要哪些指标。
有关 JMX 采集方法,请查阅 JMX 远程监控。
更多信息,请查阅 Apache Tomcat 官方手册。
编辑配置文件
编辑配置文件 conf.d/tomcat.yaml
,使 Cloud Insight Agent 可以与 Tomcat 通信。
instances:
- host: localhost
port: 7199
user: username
password: password
name: tomcat_instance
# List of metrics to be collected by the integration
init_config:
conf:
- include:
type: ThreadPool
attribute:
maxThreads:
alias: tomcat.threads.max
metric_type: gauge
currentThreadCount:
alias: tomcat.threads.count
metric_type: gauge
currentThreadsBusy:
alias: tomcat.threads.busy
metric_type: gauge
- include:
type: GlobalRequestProcessor
attribute:
bytesSent:
alias: tomcat.bytes_sent
metric_type: counter
bytesReceived:
alias: tomcat.bytes_rcvd
metric_type: counter
errorCount:
alias: tomcat.error_count
metric_type: counter
requestCount:
alias: tomcat.request_count
metric_type: counter
maxTime:
alias: tomcat.max_time
metric_type: gauge
processingTime:
alias: tomcat.processing_time
metric_type: counter
- include:
j2eeType: Servlet
attribute:
processingTime:
alias: tomcat.servlet.processing_time
metric_type: counter
errorCount:
alias: tomcat.servlet.error_count
metric_type: counter
requestCount:
alias: tomcat.servlet.request_count
metric_type: counter
- include:
type: Cache
accessCount:
alias: tomcat.cache.access_count
metric_type: counter
hitsCounts:
alias: tomcat.cache.hits_count
metric_type: counter
- include:
type: JspMonitor
jspCount:
alias: tomcat.jsp.count
metric_type: counter
jspReloadCount:
alias: tomcat.jsp.reload_count
metric_type: counter
重启 Agent
重启 OneAPM Cloud Insight Agent,使配置生效。
您也可以通过查看 Agent Info 信息,来验证配置是否成功。当出现以下信息,则代表安装成功。
Checks
======
[...]
tomcat
------
- instance #0 [OK]
- Collected 8 metrics & 0 events
有关 Agent Info 信息的查看,请访问帮助中心,查看 Cloud Insight Agent 常用操作。