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Exalogic Compute Nodes Hang When More Than 32 Virtual Machines Are Running (Doc ID 2098113.1)

Last updated on NOVEMBER 14, 2022

Applies to:

Oracle Exalogic Elastic Cloud Software - Version to
Oracle Exalogic Elastic Cloud Software - Version to
Linux x86-64
This MOS Note Applies To Following Releases:

- Exalogic Virtual Releases on X4-2 racks
- Exalogic Virtual Releases on X4-2 and X5-2 racks


In Exalogic X4-2 and X5-2 Virtual racks when running over 32 VM's on a compute node, the following symptoms are observed.

  1. Guest VM's are all hung or inaccessible on given node

  2. OCFS timeouts in all compute node logs

  3. Hung node cannot access NFS or other hosts via infiniband network.

The following errors can also be observed in the compute node /var/log/messages log.


 Adding additional virtual machines can trigger this problem.


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