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Chris Price wrote:
>
> ----------------------------------------------------------------
> BEFORE YOU POST, search the faq at <http://java.apache.org/faq/>
> WHEN YOU POST, include all relevant version numbers, log files,
> and configuration files. Don't make us guess your problem!!!
> ----------------------------------------------------------------
>
> Hi;
>
> I am playing with load balancing with Jserv 1.1 on a pair of Solaris
> 2.7 systems. I am using the unix 'strings' command to view the printable
> contents of my shmem file. HEre what it tells me:
>
> jserv_mmap
> $$$$$
> +JS1
> H$$+JS2
> I$$-
> <whole bunch of dollar signs deleted>
>
> Now this kinda makes sense to me, JS1 & JS2 are my servlet routes for
> my two servlet engines.
yes
> Here are my questions:
>
> 1) What do the various items in the shmem file represent? I assume that
> +JS1 means that JS1 is up, but what do H and I represent.
+, -, /, X mean : up, down, "kindly terminated by administrator, letting
established session works", "brutal shutdown by admin"
other values are binary data (IP address, port number, ...)
That is described shortly in load-balancing howto.
>
> 2) When I manually stop the server that services JS2, I think I would
> expect that the shmem file would change to '-JS2' to reflect this -> it
> does not.
it will if one hit is sent to this servlet engine. if you want to update
by hand this value use the GUI admin tool or the jserv_shmedit program
available in CVS.
>
> Maybe what i need is some more specifics on what exactly is in the
> shmem file, and what it represents exactly. Comments or pointers to
> further reading are appreciated...
you can use your http://localhost/jserv/ url and follow the links
or try mine (feel free to change values on-line) :
http://ma-planete.net/jserv/
I just (2 days ago) added 2 entries in the FAQ system for shm
manipulation how-to :
2 ways :
- use the admin GUI
- use the jserv_shmedit program.
enough ? ;-)
>
> Chris
Jean-Luc
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