div8cn opened a new issue #5523:
URL: https://github.com/apache/cloudstack/issues/5523
<!--
Verify first that your issue/request is not already reported on GitHub.
Also test if the latest release and main branch are affected too.
Always add information AFTER of these HTML comments, but no need to delete
the comments.
-->
##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Bug Report
##### COMPONENT NAME
<!--
Categorize the issue, e.g. API, VR, VPN, UI, etc.
-->
~~~
AGENT
~~~
##### CLOUDSTACK VERSION
<!--
New line separated list of affected versions, commit ID for issues on main
branch.
-->
~~~
4.15.0.0
~~~
##### CONFIGURATION
<!--
Information about the configuration if relevant, e.g. basic network,
advanced networking, etc. N/A otherwise
-->
##### OS / ENVIRONMENT
<!--
Information about the environment if relevant, N/A otherwise
-->
##### SUMMARY
<!-- Explain the problem/feature briefly -->
Defined in the current code
Available memory = free memory + cache memory (Is Buffers memory missing
here)
https://github.com/apache/cloudstack/blob/main/plugins/hypervisors/kvm/src/main/java/org/apache/cloudstack/utils/linux/MemStat.java#L58
/proc/meminfo in the linux kernel has already calculated the Available
memory for us, why not use it directly?
The memory occupied by Buffers will be automatically released when we need
it;
If we don't calculate Buffers in Available memory, it often happens that the
host allocates a small amount of memory, but the CLOUDSTACK shows that the host
has run out of memory (because the memory is occupied by Buffers). As a result,
we cannot run more instances in the host
##### STEPS TO REPRODUCE
<!--
For bugs, show exactly how to reproduce the problem, using a minimal
test-case. Use Screenshots if accurate.
For new features, show how the feature would be used.
-->
<!-- Paste example playbooks or commands between quotes below -->
~~~
~~~
<!-- You can also paste gist.github.com links for larger files -->
##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
~~~
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
~~~
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
