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From Rajesh Cherukuri <rajec...@gmail.com>
Subject Re: Tomcat crashes with java 1.7
Date Mon, 31 Oct 2016 01:57:39 GMT
Sure ,Will try this

On Oct 29, 2016 11:02 PM, "Christopher Schultz" <
chris@christopherschultz.net> wrote:

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> Rajesh,
>
> On 10/28/16 6:41 AM, Rajesh Cherukuri wrote:
> > these severs has been migrated , i was told that it was working on
> > the source server
>
> Okay. That gives us no information whatsoever that can help us help you.
>
> We don't know what the implications of the "servers [have] been
> migrated" means or what a "source server" is.
>
> If what you mean is "these are newly-provisioned servers, and the
> servers from which these services were migrated (to the new ones) were
> working fine before migration" then I would again steer you toward
> running a hardware test on the new servers to make sure you don't have
> defective components.
>
> So many people assume that when they purchase new hardware it's going
> to be in perfect working condition. I would say that some significant
> percentage of RAM chips I've been sold have been sub-par and required
> replacement immediately upon provisioning. I would guess something
> like 10% of all RAM chips I've ordered had to be replaced before
> seeing any actual service.
>
> That's why I always demand at least 24-hours of memtest86 or
> equivalent, and at least 2 complete cycles through the RAM (sometimes
> 2 complete cycles takes more than 24 hours, since RAM sizes are so big
> these days).
>
> I don't have time to waste chasing-down phantom JVM bugs caused by
> unreliable hardware. Just run a hardware test and see what happens. If
> the hardware seems fine, try a different version of the JVM.
>
> - -chris
>
> > On Fri, Oct 21, 2016 at 8:10 PM, Christopher Schultz <
> > chris@christopherschultz.net> wrote:
> >
> > Rajesh,
> >
> > On 10/21/16 2:13 AM, Rajesh Cherukuri wrote:
> >>>> can some one help me on this , tomcat servers crashes if i
> >>>> use java 1.7 , i have tried chaining this to java 1.6 and i
> >>>> am be to start the tomcat , issue is only when i use 1.7
> >>>>
> >>>> here is the log when i use 1.7 after it crashes
> >>>>
> >>>> Oct 21, 2016 7:37:28 AM
> >>>> org.apache.catalina.core.StandardService startInternal INFO:
> >>>> Starting service Catalina Oct 21, 2016 7:37:28 AM
> >>>> org.apache.catalina.core.StandardEngine startInternal INFO:
> >>>> Starting Servlet Engine: Apache Tomcat/7.0.53 # # A fatal
> >>>> error has been detected by the Java Runtime Environment: # #
> >>>> SIGSEGV (0xb) at pc=0xfbc7e41c, pid=2081, tid=21 # # JRE
> >>>> version: Java(TM) SE Runtime Environment (7.0_79-b15) (build
> >>>> 1.7.0_79-b15) # Java VM: Java HotSpot(TM) Server VM
> >>>> (24.79-b02 mixed mode solaris-sparc ) # Problematic frame: #
> >>>> J 78 C2
> >>>> java.util.HashMap.getEntry(Ljava/lang/Object;)Ljava/util/HashMap$En
> try
> >
> >>>>
> ;
> >>>> (86 bytes) @ 0xfbc7e41c [0xfbc7e380+0x9c]
> >
> > This is a JVM bug and, almost by definition, is not linked to
> > Tomcat.
> >
> > Try switching to a higher or lower version of Java 1.7 (e.g. 7u80
> > or 7.76).
> >
> > You also might want to test your CPU+RAM to see if they are buggy.
> >
> > -chris
> >>
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