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Javascript based JVM thread dump analyzer

Home Page: https://jstack.review

License: Apache License 2.0

JavaScript 70.23% HTML 27.97% CSS 1.81%

jstack thread-dump jvm

jstack-review's Introduction

Java Thread Dump Analyzer

Go to jstack.review to analyze your thread dumps.

This is a Java thread dump analyzer written in Javascript. It is based on the original version by Spotify AB.

Additional information on the usage can be found in the Wiki.

License

The Java Thread Dump Analyzer is licensed under version 2.0 of the Apache license.

jstack-review's People

Contributors

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jstack-review's Issues

Write documentation

Use the wiki section to document all the new features

Allow passing of multiple URLs

As query string use ; as delimiter, in text area use both ; and newlines to delimit multiple URLs.

The rest should work in the same way as selecting multiple files:

open a tab for every analysis
if exactly 2 are provided perform an auto-analysis

What about a download failure? Stop after the first error, or continue with next?

Support other thread dumps

TDA has a bunch of example of thread dumps: https://github.com/irockel/tda/tree/master/tda/test/none
Quite a few do not produce proper results.

Uncaught Error: Bootstrap's JavaScript requires jQuery at bootstrap.min.js:6:37?

https://jstack.review/

Allow importing of a dump posted on gist/pastebin/...

JavaScript Error when clicking 'Analyze' Button

When clicking the 'Analyze' Button, nothing happens.
The following error is printed to the JavaScript Console:

Uncaught TypeError: Invalid template! Template should be a "string" but "undefined" was given as the first argument for mustache#render(template, view, partials)
    at Object.render (mustache.min.js:1)
    at executeAnalysis (frontend.js:140)
    at HTMLButtonElement.<anonymous> (frontend.js:50)
    at HTMLButtonElement.dispatch (jquery-1.12.4.min.js:3)
    at HTMLButtonElement.r.handle (jquery-1.12.4.min.js:3)

This happens with Chrome 77 and Firefox 69.

Is there a way to trigger a jstack analysis from the command line?

I would like to incorporate jstack analysis into a troubleshooting tool that I am writing. Here's what I would like to do:

Pass jstacks 1 through n to a local version of your tool running on my machine.
Have your tool return back to me the jstack analysis of jstacks 1 through n as HTML pages that I can save.
My tool will upload those HTML pages to a central ticketing server of my choosing.

Please let me know if you have any tips on how I can achieve this use case using your javascript code.

Thanks a lot for this service. fastthread.io charges money for the same service you have provided for the community.

URL detection breaks some Apache Camel thread dumps

Hello,

while using your tool I've encountered an issue that some Apache Camel thread dumps won’t be analyzed because they include an URL in their name.

Example:

"Camel (camel) thread #2 - eft://http://saas-eft:8008/bshatlas" #95 daemon prio=5 os_prio=0 tid=0x00007fef7fb60800 nid=0x41ba runnable [0x00007fef310e9000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
	at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
	at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
	at sun.nio.ch.IOUtil.read(IOUtil.java:197)
	at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:377)
	- locked <0x00000000851def98> (a java.lang.Object)
	at oracle.net.nt.TimeoutSocketChannel.read(TimeoutSocketChannel.java:178)
	at oracle.net.ns.NSProtocolNIO.doSocketRead(NSProtocolNIO.java:544)
	at oracle.net.ns.NIOPacket.readHeader(NIOPacket.java:234)
	at oracle.net.ns.NIOPacket.readPacketFromSocketChannel(NIOPacket.java:174)
	at oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:122)
	at oracle.net.ns.NIOPacket.readFromSocketChannel(NIOPacket.java:100)
[...]

I've created a fork and commented out the lines responsible for URL detection, after which the thread dumps will be analyzed as expected. (maisi@a9f99fa)
However this essentially breaks the import-from-URL feature, which is why I haven't submitted a pull request.

Thanks for your tool, really helps with my daily work :)

BR
Martin

Collapse long stack traces

Define (configurable) package patterns to collapse stack traces after N lines when the stack trace is M lines long.

This would change this:

	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:230)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:701)

into this (with N=5, and pattern=org.apache.jk.; org.springframework.security.web.)

	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	[...]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	[...]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:230)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
	[...]
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:701)

Thread state "WAITING (parking)" from OpenJDK 11 not recognized well

Stack dumps taken using JStack tool from OpenJDK 11 use a "WAITING (parking)" value in the Thread State line which JStack Review doesn't appear to recognize in the ThreadStatus.determineStatus() function.

Examining the Hotspot C++ source code it seems there are a couple of states possibly not recognized:

"WAITING (parking)"
"TIMED_WAITING (parking)"
"BLOCKED (on object monitor)"

The below C++ code seems to be the source of the Thread Statuses that are rendered. See:

Other parts of synchronizer recognition logic (eg the this.thread.wantNotificationOn !== null condition) compensate for this analysis in some cases, but it would seem desirable to recognize the Thread State correctly.

Example below ----

"second thread" #15 prio=5 os_prio=0 cpu=0.00ms elapsed=21.96s tid=0x000001d9f6cd7800 nid=0x2604 waiting on condition [0x000000569beff000]
java.lang.Thread.State: WAITING (parking)
at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
- parking to wait for <0x0000000622759690> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park([email protected]/LockSupport.java:194)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt([email protected]/AbstractQueuedSynchronizer.java:885)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued([email protected]/AbstractQueuedSynchronizer.java:917)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire([email protected]/AbstractQueuedSynchronizer.java:1240)
at java.util.concurrent.locks.ReentrantLock.lock([email protected]/ReentrantLock.java:267)
at com.orchestral.rhapsody.util.thread.ThreadDumpFormatterTest.lambda$0(ThreadDumpFormatterTest.java:67)
- locked <0x0000000622759640> (a java.lang.Object)
at com.orchestral.rhapsody.util.thread.ThreadDumpFormatterTest$$Lambda$307/0x00000008001a4840.run(Unknown Source)
at java.lang.Thread.run([email protected]/Thread.java:829)

jstack waiting parking.txt

Remove jQuery dependency in render code

The current render implementations do not really rely on JQuery, but to expect the input to be a JQuery object rather that a simple DOM.
The mustache template resolvers should also be externalized so they could be replaced by an other construction.

This is a step to make the analysis and HTML rendering portable to a possible cli implementation.

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