Takuya,
Mike's rule of thumb has been 1 core and 2GB memory for ~25 users.
You seem to have followed that well, although I don't recall if Mike
differentiated with regard to where the memory was allocated (I see you
have specific settings for Tomcat).
I've never had need, nor tried, the number of users you're looking at,
thus I won't be able to assist directly, however it might be helpful to
others if you could describe how you've determined you max out at 340?
By this I mean what actually happens - does Guacamole simply refuse to
accept any more connections, or do existing connections become
effectively unusable? If the latter, what criteria are you using, and
what tasks are you performing at the time?
Also, what do you mean by 'The resource of the server does not seem to
be so tight'? What is the CPU load, what is the memory use at this time?
Finally, FYI, here is a comment I made around 2 years ago when a
question around hardware requirements came up: 'With approx 80-85 users,
of which circa 35 or a little more are doing intensive CAD type work and
the rest a mix of documents incl PDF images, the average bandwidth when
busy has been less than 20Mb/s, server load is typically in the range
1.5-2 (6 cores allocated) and memory use up to 8GB (incl OS) out of 12GB
allocated. Very rarely server load will get a little beyond 3, and
bandwidth will burst to 100Mb/s.'
As you will see, in the real world the load was not static and there
were times when it was relatively high, but because no user is likely to
do exactly the same thing at the same time as any other user it will
tend to 'average out' to a certain acceptable level. However if you were
to replicate something across 340 connections that was quite resource
intensive it could well increase load beyond acceptable limits - however
you'd be extremely unlikely to see this in normal operation.
On 16/02/22 12:25 am, takuya morita wrote:
Hi, I'm Takuya in Japan.
I have tried to load test guacamole using the following method. Is there
anything I can do to make it better?
I thought I could connect up to 600.
Conditions
- Create a balancing group.
- Prepare 500 connections.
- Login to Guacamolemo with one user.
- Create a script to duplicate the tab and paste the url to create 500
connections.
- The specs are 24 cores CPU, 48GB memory, 24G max memory for tomcat,
12G min memory for tomcat.
- Maximum memory of tomcat 24G, Minimum memory of tomcat 12G
Result
- The maximum number of connections is 340.
- The session is alive all the time when I checked it using netstat.
- The resource of the server does not seem to be so tight.
I really want to achieve 600 connections!
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