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Jul 27, 2023 at 03:48 PM

ASE v16 page faults after applying RHEL Patch v8.8 (May 2023)

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With the May RHEL 8.8 Patch updates applied and no changes to our Adaptive Server Enterprise v16 installation, ASE is reporting Page Faults that we have not seen prior to this RHEL update. Has anyone else seen this and know what can be done to stop the faults from happening?

Items of note.

  • We are running Sybase in a containerized environment.
  • ASE version that we are running:
    Adaptive Server Enterprise/16.0 SP03 PL11 HF1/EBF 30223 SMP/P/x86_64/SLES 11.1/ase160sp03pl11x/4023/64-bit/FBO/Mon Feb 14 21:02:34 2022
  • Since upgrading RHEL8 patches as of May 2023 we are seeing the following within Sybase:
    Jul 27 04:45:22 servername sh[2366]: 00:0001:00000:00000:2023/07/27 04:45:21.96 kernel Adaptive Server had 967791 major and 5105 minor page faults since boot, and 8831 major and 2 minor page faults in last 25000 milliseconds.
  • The OS (VM) allocation is 8 CPU and 48 GB RAM
  • The container allocation is 4 CPU and 17 GB

This is the current memory settings on the system:

Parameter Name Default Memory Used Config Value Run Value Unit Type

------------------------------ ----------- ------------- -------------- ------------ ---------------- ---------

max memory 229376 8388608 4194304 4194304 memory pages(2k) dynamic

total logical memory 208896 7090676 3544276 3545338 memory pages(2k) read-only

total physical memory 0 7088552 0 3544276 memory pages(2k) read-only