Java errors Post: 302109651

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Operating Systems Solaris Java errors Post 302109651 by BOFH on Wednesday 7th of March 2007 09:04:13 AM

03-07-2007

Registered User

Java errors

Solaris 10. Getting a boatload of "Resource unavailable" on read errors for a Java process which is taking 350% of CPU. No I/O issues and dtrace shows lots of lwp calls. There are only 54 threads (or so, it fluxuates) but certainly not a lot. App is WebLogic.

App has been up since the third and we don't know if the app guys did the Java DST patch since then. System is a recent upgrade to Solaris 10 so perhaps there's a /etc/system setting that needed to be increased.

I used pstack to examine the worst thread but nothing popped out. I also used the dtrace command to example the stack. Lots of libjvm.so calls which is to be expected. Again, nothing about a missing resource is popping up.

iotop doesn't show anything there that's an issue and netstat -i doesn't show much network activity.

Thoughts? Something else I should be looking at?

Thanks.

Carl

BOFH

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dtrace(7D)							      Devices								dtrace(7D)

NAME

       dtrace - DTrace dynamic tracing facility

DESCRIPTION

       The  dtrace  driver  provides  the  dynamic  instrumentation and tracing facilities for the DTrace software, as well as the built-in dtrace
       provider. The dtrace driver is not a public interface and you access the instrumentation offered by this provider through DTrace tools such
       as  dtrace(1M).	 Refer to the Solaris Dynamic Tracing Guide for a description of the public documented interfaces available for the DTrace
       facility and dtrace provider probes.

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdtrp			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Private			   |
       +-----------------------------+-----------------------------+

SEE ALSO

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       Solaris Dynamic Tracing Guide

SunOS 5.11							    4 Sep 2003								dtrace(7D)

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