not really ;-)
there were "out of memory" leaks in the TM that are fixed in CVS
an out of memory will exit the JVM
marc
|-----Original Message-----
|From: [EMAIL PROTECTED]
|[mailto:[EMAIL PROTECTED]]On Behalf Of Derek Last Name
|Sent: Monday, October 16, 2000 5:35 AM
|To: jBoss
|Subject: Re: [jBoss-User] Core dump: ouch!
|
|
|well, the result of running this code is that the jvm
|dies and i get a dr. watson on nt, does this classify?
|
|--- Andrius Juozapaitis <[EMAIL PROTECTED]>
|wrote:
|> IMHO term CD - "core dump" gets misused for
|> "exception stack trace" quite
|> often lately. CD happens under certain conditions in
|> *nixes when jvm can't
|> handle something, resulting in killing the java
|> process and saving the
|> memory dump to a file. analogous situation under win
|> is "..illegal operation
|> ..blabla.. will be shut down". .
|> _exceptions_ in jboss are usually seen in a server
|> log and inform on
|> exceptional situations in the program logic. in
|> certain situations they can
|> be recovered from.
|>
|> 0.02 cents,
|> --andrius
|>
|>
|> ----- Original Message -----
|> From: "Derek Last Name" <[EMAIL PROTECTED]>
|> To: "jBoss" <[EMAIL PROTECTED]>
|> Sent: Monday, October 16, 2000 1:57 PM
|> Subject: RE: [jBoss-User] Core dump: ouch!
|>
|>
|> > i have some code that will core dump jboss just
|> about
|> > every time i run it within 5-15 minutes. i call
|> it
|> > using 4 dos prompts running the same code. the
|> code
|> > does a ejb create. each dos prompt i run uses 10
|> > threads, so, i guess im using 40 clients all doing
|> ejb
|> > creates at the same time. each client does a
|> delete
|> > all in the table, then does 10 inserts. i have my
|> try
|> > catch block so that when i get duplicate inserts
|> it
|> > will ignore the error, and just keep on going. i
|> did
|> > this since this is the first ejb example i had in
|> my
|> > book, this is all i have figured out how to do so
|> far,
|> > and i wanted to test it out under load to see if
|> what
|> > kind of performance i would get. i am quite
|> > underwhelmed and disappointed to say the least.
|> maybe
|> > im doing something wrong in my code. yes, i
|> realize
|> > most applications wont be doing this sort of load.
|> > anyways if you want the code let me know. like i
|> said
|> > everytime i run it, i get a core dump in jboss.
|> >
|> >
|> > --- marc fleury <[EMAIL PROTECTED]> wrote:
|> > > the only situation where we have seen the core
|> dump
|> > > is on shutdown where the
|> > > JVM barfs on a "unexpected thread" bla bla...
|> then
|> > > the dump goes to file and
|> > > can be quite high.
|> > >
|> > > I have personnaly never seen a CD under any
|> other
|> > > circumstances (but I stand
|> > > to be corrected ;-), not even on the heavy heavy
|> > > loads we are running right
|> > > now (again 200thread, 150,000 beans all in
|> parallel
|> > > and stable :)))))
|> > >
|> > > marc
|> > >
|> > >
|> > > |-----Original Message-----
|> > > |From: [EMAIL PROTECTED]
|> > > |[mailto:[EMAIL PROTECTED]]On
|> Behalf
|> > > Of Tom Cook
|> > > |Sent: Friday, October 13, 2000 1:00 AM
|> > > |To: [EMAIL PROTECTED]
|> > > |Subject: [jBoss-User] Core dump: ouch!
|> > > |
|> > > |
|> > > |Just a warning:
|> > > |
|> > > |Just discovered that, under some circumstances,
|> > > jBoss running under
|> > > |Sun's 1.3 release JDK for linux can core dump
|> in a
|> > > large way (it got
|> > > |to 116Mb before I killed it). When it's
|> running
|> > > from an NFS mount
|> > > |this drags my box to it's knees with network
|> > > congestion.
|> > > |
|> > > |Tom
|> > > |--
|> > > |Tom Cook - Software Operations
|> > > |
|> > > |"We rarely find that people have good sense
|> unless
|> > > they agree
|> > > | with us."
|> > > | - Francois, Duc de la Rochefoucauld
|> > > |
|> > > |LISAsoft Pty Ltd - www.lisa.com.au
|> > > |
|> > >
|> |--------------------------------------------------
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|> > > |Wayville, SA, 5034 Sydney, NSW, 2000
|> > > |
|> > > |Phone: +61 8 8272 1555 Phone: +61 2 9283
|> 0877
|> > > |Fax: +61 8 8271 1199 Fax: +61 2 9283
|> 0866
|> > >
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