Hi, We have a problem with the usage of the RAM memory on our Appian PROD s

...this parameter to 960 (16x60).
Now we suspect that that is the reason for this problematic constant used of the memory.
Customer can not allocate any more memory or hard disk space for Production Virtual Server, so we need to do something.
Obviously, this configuration is not done properly, so any suggestion would be much appreciated.
There are discussions on this forum where is suggested that the default metric value (40) should be increased by the number of additional (free) GB of RAM (more than 4GB) multiplied by a factor of 60 (somewhere says 30).

So, from what I understand, for our configuration (16 GB RAM), the formula is:

40 + (16GB - 4GB) * 60 = 760

Or if we use the factor of 30: 40 + (16GB - 4GB) * 30 = 400

But somewhere in the discussions it says that we need to increase the default metric value (40) by the FREE available RAM after starting Appian multiplied by a factor of 60. But we can not see that now, because this is the production ser...

...ver.
Please give us a hint what is the right formula? How should we set the MAX_EXEC_ENGINE_LOAD_METRIC on our PROD server (with 16 GB of RAM).
Additional information - we are on Appian 6.6, but we soon plan to migrate to Appian 7.0.
Thank you in advance...

Adjusting those metrics will not alleviate the problem of the lack of sufficient hardware on the ram side. I agree that your deployment is at a high risk.

For disk, those are a lot of likely unnecessary files to keep, assuming proper backups are in place. Cleanup script should be reviewed. This will only help on disk usage, not ram.

OK.

The question is :

Can we now change this 960 value to smaller one without any performance issue ? And what value do you suggest having in mind our hardware configuration( Available RAM)?

That value is not related to performance or speed in any way. It only affects availability of the engine.

But that value is related to the size of *. kdb it self and also to the allocated memory that each gateway is using rigth?

I believe your goal is to reduce hardware requirements. Adjusting this value will not address your goal. I highly recommend focusing energy on getting more hardware.

For JBoss did you set the User Mem Arg to set the min/max and MaxPerm settings fir the JVM? I would advise to do that for JBoss, but you still need to increase memory.

Did you mean the following customization on runn.conf file ?
# Suggested default memory settings for Oracle JVM
USER_MEM_ARGS="-Xms1024m -Xmx3072m -XX:PermSize=256m -XX:MaxPermSize=512m"

Yes. I meant post the link, but couldn't from my phone. That will help some with JBoss, but overall the system needs more memory. Add in a cleanup script for logs and reduce the number of logs kept in the <APPIAN_HOME>\\ear\\suite.ear\\resources\\appian_log4j.properties or runtime_ear if you are using the PS_Build for hard drive space.

I'm guessing everything is running on the same server? Apache, Appian, JBoss