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Lack of free swap space on DM server

james_clarke
Newcomer

Swap on our server is set be made available at boot, however for whatever reason it is currently not available (note: this is non-impacting).

Are you aware if this is an dynatrace requirement to not have swap enabled? – judging by a quick google it seems JVM based apps prefer to control memory usage, not requiring swap, so something like Dynatrace might possibly be removing it?

If this is the case, should we just prevent swap to be mounted at boot to permanently prevent or instead mount swap now if it should be used?


1 REPLY 1

Radoslaw_Szulgo
Dynatrace Leader
Dynatrace Leader

Hi,

take a look at our help page here: https://www.dynatrace.com/support/help/shortlink/managed-cluster-setup#step-3-run-the-installer

What happens during installation?
The installer also optimizes operating system settings:
Swap is turned off (with swapoff).
Note that enabling swap can result in undesired behavior and so isn't supported.

Technical Product Manager,
Dynatrace Managed expert