Bug 57004 - Get number of stuck threads from StuckThreadDetectionValve through jmx
Summary: Get number of stuck threads from StuckThreadDetectionValve through jmx
Status: RESOLVED FIXED
Alias: None
Product: Tomcat 8
Classification: Unclassified
Component: Catalina (show other bugs)
Version: 8.0.x-trunk
Hardware: All All
: P2 enhancement (vote)
Target Milestone: ----
Assignee: Tomcat Developers Mailing List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-09-22 20:59 UTC by Jiří Pejchal
Modified: 2014-09-23 13:00 UTC (History)
0 users


Attachments
Patch for getting stuckThreadCount through jmx (1.37 KB, patch)
2014-09-23 12:34 UTC, Jiří Pejchal 		Details | Diff
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Description Jiří Pejchal 2014-09-22 20:59:14 UTC 
It would be nice if the number of stuck threads reported by StuckThreadDetectionValve was available through jmx (e.g. stuckThreadCount).

The number of stuck threads is stored in the stuckCount variable. However there is no jmx attribute for it, there is only getter for stuckThreadIds which is long[].


I usually use tool like jmxtrans to get the value and plot a graph with graphite.
Comment 1 Jiří Pejchal 2014-09-23 12:34:05 UTC 
Created attachment 32045 [details]
Patch for getting stuckThreadCount through jmx

This would be nice to have in tomcat7 too.
Comment 2 Christopher Schultz 2014-09-23 13:00:27 UTC 
Fixed in trunk in r1626991. Will be in Tomcat 8.0.13 and later.
Fixed in Tomcat 7. Will be in Tomcat 7.0.56 and later.