64 bit RH Enterprise?

[Terry Ford-3]

Hey folks...

We're upgrading our servers to Opterons and are wondering whether we should use Red Hat Enterprise Linux - ES 4 (64 bit) for our CF and db servers.

Does anyone know if CFMX, mysql, apache, sun's JVM (a) work on 64 bit RHE, and (b) if so, do they gain anything in performance?  Or should we just stick with 32 bit?

Thanks for any thoughts...

Terry

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[Oğuz Demirkapı]

    No. CF does not work on 64bit OSs.


Terry Ford wrote:

> Hey folks...
>
> We're upgrading our servers to Opterons and are wondering whether we should use Red Hat Enterprise Linux - ES 4 (64 bit) for our CF and db servers.
>
> Does anyone know if CFMX, mysql, apache, sun's JVM (a) work on 64 bit RHE, and (b) if so, do they gain anything in performance?  Or should we just stick with 32 bit?
>
> Thanks for any thoughts...
>
> Terry
>  

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[Oğuz Demirkapı]

    Or in general if you would use 32 bit JVM, it may work.


Terry Ford wrote:

> Hey folks...
>
> We're upgrading our servers to Opterons and are wondering whether we should use Red Hat Enterprise Linux - ES 4 (64 bit) for our CF and db servers.
>
> Does anyone know if CFMX, mysql, apache, sun's JVM (a) work on 64 bit RHE, and (b) if so, do they gain anything in performance?  Or should we just stick with 32 bit?
>
> Thanks for any thoughts...
>
> Terry
>  

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[Matthew Geier]

Oğuz Demirkapı wrote:
>     Or in general if you would use 32 bit JVM, it may work.


  Works for me.

> Terry Ford wrote:
>>
>>Does anyone know if CFMX, mysql, apache, sun's JVM (a) work on 64 bit RHE, and (b) if so, do they gain anything in performance?  Or should we just stick with 32 bit?

  I'm running 64bit RHEL AS4, Apache in 64bit mode, Jrun (and CF) in 32
bit mode. In my case MySQL is running on another host that is still
32bit and Fedora Core 3, although most of the CF apps are talking to a
MSSQL database server. (PHP and Perl web apps are using the MySQL server).

  Worth noting that in general, 32bit applications will run on 64bit
Linux systems as most distributions implement dual libraries.

  The jrun Apache connector is obviously 64bit clean, I just simply
compiled it, slotted it in and stuff worked.

  Note however, if you expect support from Macromedia, I doubt 64bit
host environment is a supported configuration.

  I've not tried running under a 64bit JVM. CF on linux pulls in a
couple of non java .so files, which it wouldn't be able to do if the JVM
was 64bit. I don't know what functionality you would lose.

  My server also runs 'OpenDeploy' to connect with a CMS for static
content. OpenDeploy is also Java based. It ships with it's own JVM like
Jrun. OpenDeploy has a busy-wait bug, where it just sits there eating
all available CPU cycles (doing a 'waitpid' for a non existent PID and
retrying the waitpid when it fails). Interwoven won't even acknowledge
the issue as they don't support 64bit OSs, even though their application
is running in a 32bit runtime environment. Presumably it behaves itself
on 32bit RHEL which IS a supported configuration.

  So if vendor support is important, it might not be worth the small
gain to try it.


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On Thursday 02 November 2006 19:27, Oğuz Demirkapı wrote:
>     Or in general if you would use 32 bit JVM, it may work.

s/may/will/

We use 64-bit SuSE with native Apache (2.2) and MySQL, and CF is just fine.

--
Tom Chiverton

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[SemajR]

Does anyone have any good written documentation (preferably with documented "gotchas") on setting up CF on 64bitLinux/Apache2.2 ?
(Been the google route, and still coming up short)

Have pined away all week at it and keep running into different issues, mainly seemingly connector problems ("mod_jrun20.so: wrong ELF class: ELFCLASS32", etc).

I have attempted a recompile of the connector, but to no avail.
I am right now attempting to install Apache 2.0.61 side by side with the 2.2, and have CF use it instead, but still stumbling.

Im not going to upgrade CFMX until they come out with a full x86_64 native version. I dont want to have to go through this again :-)
(I have to move to a new server, which is an Athlon dual core 3800+ 64Bit on CentOs5, as soon as possible--old server is dying a very slow painful death, so before it goes.....)

Any direction would be appreciated

JK