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From "Rick Fincher" <...@tbird.com>
Subject All Threads Waiting error?
Date Wed, 04 Dec 2002 19:05:38 GMT
Hi All,

Anyone got an idea of what an "All threads waiting" error is and how to
increase the number of  threads or un-deadlock them?

I had this problem with Tomcat 4.1.14 on a Solaris 8 box with JDK 1.4.1.

The error messages I got are below.

Thanks,

Rick

Dec 2, 2002 7:05:09 PM org.apache.tomcat.util.log.CommonLogHandler log
INFO: All threads are busy, waiting. Please increase maxThreads or check the
servlet status75 75

2002-12-03 05:35:41 StandardWrapperValve[default]: Servlet.service() for
servlet default threw exception
java.lang.NullPointerException
        at java.io.File.<init>(File.java:263)
        at
org.apache.naming.resources.FileDirContext.file(FileDirContext.java:880)
        at
org.apache.naming.resources.FileDirContext.getAttributes(FileDirContext.java
:487)
        at
org.apache.naming.resources.BaseDirContext.getAttributes(BaseDirContext.java
:797)
        at
org.apache.naming.resources.ProxyDirContext.cacheLoad(ProxyDirContext.java:1
473)
        at
org.apache.naming.resources.ProxyDirContext.cacheLookup(ProxyDirContext.java
:1394)
        at
org.apache.naming.resources.ProxyDirContext.lookup(ProxyDirContext.java:300)
        at
org.apache.catalina.servlets.DefaultServlet$ResourceInfo.set(DefaultServlet.
java:2267)
        at
org.apache.catalina.servlets.DefaultServlet$ResourceInfo.<init>(DefaultServl
et.java:2219)
        at
org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.jav
a:921)
        at
org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:506)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:260)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
)


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