Please refer "AS-BAM application and server monitoring - Overall
Architecture" mail thread on [email protected] for context details.
The AS Agent will collect the connector level stats periodically using the
MBeans provided by Catalina. Then it publish them to the BAM using several
data streams.
Here are the possible stats that can be collected.
*Mbean* *Attribute* *Description* *Example* Connector
Get List of Connectors 9443, 9763
port
protocol
Http11NioProtocol
scheme
Http / https
Cache
Get Cache details per each context. Cache details of /jaxrs_basic
accessCount
cacheSize
hitsCount
GlobalRequestProcessor
Requests processed per each Connector Requests processed on Http-nio-9443
bytesSent
bytesReceived
errorCount
processingTime
requestCount
JspMonitor
Per each WebappContext JSP details of /examples
jspCount
jspReloadCount
jspUnloadCount
Manager
Session details per each context Session details of /example
activeSessions
rejectedSessions
expiredSessions
sessionCounter
Servlet
Per each Servlet loaded Details of JaggeryServlet
classLoadTime
errorCount
loadTime
processingTime
requestCount
ThreadPool
The details of each threadpool i.e. http-nio-9763 thread pool
connectionCount
currentThreadCount
currentThreadsBusy
keepAliveCount
WebModule
Per each webapp Overall details about /example
errorCount
processingTime
requestCount
*BAM Data Stream Definition(s)*
These data can be categorized as:
1. Stats per Connector from Connector, GlobalRequestProcessor, ThreadPool
MBeans
2. Stats per Webapp Context from WebModule, Manager, JspMonitor & Cache
MBeans
3. Stats per Servlet from Servlet MBean.
So It should have three different Streams to represent these data.
*Data Streams:*
Connector Data Stream
Columns:
connectorName, port, scheme, bytesSent, bytesReceived, errorCount,
processingTime, requestCount, connectionCount, currentThreadCount,
currentThreadsBusy, keepAliveCount
Context Data Stream
Columns:
context, errorCount, processingTime, requestCount, activeSessions,
rejectedSessions, expiredSessions, jspCount, jspReloadCount,
jspUnloadCount, accessCount, hitsCount, cacheSize
Servlet Data Stream:
servlet, context, classLoadTime, errorCount, loadTime, processingTime,
requestCount
Please be kind enough to add your valuable feedback.
--
K.D. Chamil Jeewantha
Associate Technical Lead
WSO2, Inc.; http://wso2.com
Mobile: +94716813892
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