System unavailable: ci.adoptopenjdk.net

[sxa]

• Please put the system name in the title of this issue.

• Link to any log file showing the problem:

• Please describe the issue: Clients connecting over JNLP instead of over ssh appear to have been disconnected. It looks like we started having heap exhaustion failures on the server from around 1536 UTC on Saturday 7th January. which was likely the cause of it no longer being able to accept connections.

[sxa]

Heap size limit increased from 16Gb to 18Gb and server restarted. I suspect this may have been due to the additional static dockermachines we have added into the CI due to e.g.:

• Equinix Altra upgrade to Ubuntu 22.04 #2820 (comment) (New aarch64 dockerstatic host)
• Equinix migration to new data centres #2666 (Equinix migration - mostly replacing existing x64 agents)
• Setup of dockerhost-skytap-ubuntu2004-ppc64le-1 #2872 (Skytap plinux dockerhost - only some enabled so far)
• We also have a Marist (Linux/s390x) dockerhost systems which I don't think has live agents on it at present so that may also increase the load if enabled.

[sxa]

Looks to be stable after the restart - closing.