Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
Received-SPF: pass (nike.apache.org: domain of justj2ee@gmail.com designates
 209.85.210.173 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        b=PKkyckVkrogAHecq/6ccZQ0RoKnGWwITaiGSMhlzIBj8x/X1HmL40zQRtCNYr+axqw
         0QLx2IzK2lN9yVgtPXcRLPosMRLptYVFdW5bK/R8UGmhFk2XtL7eekZbmCdP6Mls6pcF
         M4HUqlqFqcqnJpLr7jrQjOwgfFKEE5YxmwP5A=
MIME-Version: 1.0
In-Reply-To: <4D19E663.4020404@pidster.com>
References: <AANLkTint-a6njScm1c4H68qx7QdAxYRGT_eGtsmkB4MV@mail.gmail.com>
	<4D18B214.1060005@ice-sa.com>
	<AANLkTinF1VZ98qmrJGjiqp=Tz-6U43vHpCEppGa+hJ2C@mail.gmail.com>
	<4D19E663.4020404@pidster.com>
Date: Tue, 28 Dec 2010 15:13:27 -0600
Message-ID: <AANLkTimJwpN4v8MP9QLRqGW_=51S0eDKBi5tjEET8Yiy@mail.gmail.com>
Subject: Re: Tomcat 5.5/HTTPD cluster question
From: Don Hill <justj2ee@gmail.com>
To: Tomcat Users List <users@tomcat.apache.org>
Content-Type: multipart/alternative; boundary=90e6ba6e87ca76fb2d04987eec75

--90e6ba6e87ca76fb2d04987eec75
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

We are on 64bit JVM 1.6 the heap is 8GB for each Tomcat instance. The OS is
RHEL 4.0 64 bit

On Tue, Dec 28, 2010 at 7:30 AM, Pid <pid@pidster.com> wrote:

> On 12/27/10 4:42 PM, Don Hill wrote:
> > Thanks.
> >
> > I am trying to get them to migrate. It seems that part of there
> bottleneck
> > could be the MAX clients on HTTPD. They get high volumes at times and
> have
> > like 1800-3000 active sessions. Any other input would be great like
> tuning
> > tomcat to workers and the best strategy to setup a tomcat/httpd env.
> >
> > Don
> >
> > On Mon, Dec 27, 2010 at 9:34 AM, Andr=E9 Warnier <aw@ice-sa.com> wrote:
> >
> >> Don Hill wrote:
> >>
> >>> Hi.
> >>>
> >>> I am working on a tomcat 5.5 cluster which is using ajp/1.3 and mod_j=
k
> and
> >>> trying to determine the best cluster design given the hardware. I hav=
e
> 2
> >>> xeon 2.3 ghz 2 CPU machines with 38GB ram machine. Currently here is
> the
> >>> config I am using. The TOMCAT and HTTPD servers are on the same
> physical
> >>> machine.
> >>>
> >>> Each machine is running HTTPD 1.3 with prefork, the MaxClients is 256
> due
> >>> compiled in limits. Each machine has 4 virtualhosts running through o=
ne
> >>> instance of HTTPD. Two of the VHOSTS are the same app running on Tomc=
at
> >>> 5.5
> >>> with 8GB RAM(configured by customer). The workers are configured to
> each
> >>> VHOST meaning for each machine there are 4 workers defined and one
> worker
> >>> is defined for each VHOST. I will try and depict this below. The
> current
> >>> load balancing is controlled by F5 and manages the load across 2
> machines,
> >>> 4
> >>> VHOST for each app.
> >>>
> >>> Based on this info can someone recommend if this configuration could =
be
> >>> improved and if so what would you recommend ?
> >>>
> >>>  The very first thing that I would recommend, would be to use the
> current
> >> versions of both httpd and tomcat.  The versions you mention above are
> >> several years old, and no longer being developed, except maybe for
> security
> >> patches.
> >> See : http://httpd.apache.org/docs/1.3/
> >> See : http://tomcat.apache.org/whichversion.html
>
> Are you using a 64bit JVM?
> What version is it?
> Is your OS a 64bit version?
> Which OS is it?
>
>
> p
>

--90e6ba6e87ca76fb2d04987eec75--