Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Kaya Saman
On 17/09/2010 13:07, Jeremy Chadwick wrote: On Fri, Sep 17, 2010 at 12:53:09PM +0300, Andriy Gapon wrote: on 17/09/2010 12:42 Jeremy Chadwick said the following: On Fri, Sep 17, 2010 at 12:19:00PM +0300, Andriy Gapon wrote: on 17/09/2010 11:56 Jeremy Chadwick said the followi

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Jeremy Chadwick
On Fri, Sep 17, 2010 at 12:53:09PM +0300, Andriy Gapon wrote: > on 17/09/2010 12:42 Jeremy Chadwick said the following: > > On Fri, Sep 17, 2010 at 12:19:00PM +0300, Andriy Gapon wrote: > >> on 17/09/2010 11:56 Jeremy Chadwick said the following: > >>> I don't think you understand how Solaris's VM

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Andriy Gapon
on 17/09/2010 12:49 Steven Hartland said the following: > > My experience is no this is no longer the case at least on stable + patches > mentioned on thread:- > "zfs very poor performance compared to ufs due to lack of cache?" And at least one of those is a patch to prevent ZFS from giving memor

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Steven Hartland
- Original Message - From: "Jeremy Chadwick" On Fri, Sep 17, 2010 at 12:19:00PM +0300, Andriy Gapon wrote: on 17/09/2010 11:56 Jeremy Chadwick said the following: > I don't think you understand how Solaris's VM behaves with ZFS. It > behaves very differently than FreeBSD. On Solaris/Op

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Andriy Gapon
on 17/09/2010 12:42 Jeremy Chadwick said the following: > On Fri, Sep 17, 2010 at 12:19:00PM +0300, Andriy Gapon wrote: >> on 17/09/2010 11:56 Jeremy Chadwick said the following: >>> I don't think you understand how Solaris's VM behaves with ZFS. It >>> behaves very differently than FreeBSD. On S

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Jeremy Chadwick
On Fri, Sep 17, 2010 at 12:19:00PM +0300, Andriy Gapon wrote: > on 17/09/2010 11:56 Jeremy Chadwick said the following: > > I don't think you understand how Solaris's VM behaves with ZFS. It > > behaves very differently than FreeBSD. On Solaris/OpenSolaris with ZFS, > > you'll see the ARC taking

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Andriy Gapon
on 17/09/2010 11:56 Jeremy Chadwick said the following: > I don't think you understand how Solaris's VM behaves with ZFS. It > behaves very differently than FreeBSD. On Solaris/OpenSolaris with ZFS, > you'll see the ARC taking up as much memory as possible -- but unlike > FreeBSD (AFAIK), when a

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Kaya Saman
Thanks a lot Jeremy for the response!! On 17/09/2010 11:56, Jeremy Chadwick wrote: [...] You should probably spend a bit of time in a debugger (specifically a Java debugger) figuring out if your code is spinning or not. Debugging anything under Tomcat/Java is a PITA, and I say that from experie

Re: Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Jeremy Chadwick
On Fri, Sep 17, 2010 at 11:37:13AM +0300, Kaya Saman wrote: > This is a snapshot of the 'top' command that shows Java at 100%. > > Basically it means that the system is more in this state then > functional and I can't understand why! > > Can anyone help me?? You should probably spend a bit o

Fwd: Tomcat6 port keeps locking up??

2010-09-17 Thread Kaya Saman
D and much more costlier option of Nexenta based on OpenSolaris, but hogs RAM as uses ZFS natively meaning min 4GB unlike my FreeBSD build with ZFS and UFS2 using 4GB for that many processes and 7 jails! Thansk, Kaya Original Message Subject: Tomcat6 port keeps locking up??

Tomcat6 port keeps locking up??

2010-09-16 Thread Kaya Saman
Hi, I'm running Tomcat6 in a jail which I'm using to host the Xwiki application. This is the version of Tomcat I'm running: tomcat-6.0.29 Open-source Java web server by Apache, 6.x branch Now after a while the wiki will just stop working and the CPU will spin up to 100%?? The system