Daniel Gibby wrote:
I have this same problem. It creeped up without any configuration changes on 4.1.27
It doesn't always print this error message out, but the effect is the same.
SEVERE: All threads (75) are currently busy, waiting. Increase
> maxThreads (75) or check the servlet status
My apache config:
Timeouts: connection: 300 keep-alive: 300 MPM Name: Prefork MPM Information: Max Daemons: 255 Threaded: no Forked: yes <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 MaxClients 255 MaxRequestsPerChild 1000 </IfModule>
Tomcat config:
<Connector className="org.apache.catalina.connector.http.HttpConnector"
port="8080" minProcessors="5" maxProcessors="255"
enableLookups="true" redirectPort="8443"
acceptCount="100" debug="0" connectionTimeout="60000"/>
Hey, I just realized something... I think I have been having lockups around every 16 hours... 60000 seconds! So what does that mean about this configuration?
Why is the connectionTimeout being reached? I think I had set it to a really high number because I figured I didn't want anything to ever hit it.
Is some servlet not returning content but hanging on to a connection?
Could you explain a little further about 'bug in a servlet causing it to not return'?
I have a stack trace, but I don't see how that helps me figure out where my problem might be... I'm not sure what exactly to look for.
Daniel Gibby
"David Rees" wrote:
Like the messages say, all Tomcat threads are busy and you've hit the
maximum number of threads which can be processed concurrently. Sounds
like you've got either a bug in a servlet causing it to not return, or
your server is simply overloaded. You can get a stack trace from the
JVM to help debug this issue pretty easily.
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