engine.log gets flooded with 'Invalid or unknown guest architecture type'

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Virtualization 3.x, 4.x
  • Red Hat Enterprise Linux 5 Guest
    • rhevm-guest-agent
    • 32-bits architecture

Issue

  • Installing/enabling rhevm-guest-agent service in RHEL 5 guests with arch of 32-bits will make guest-agent to report arch type as i386, i486, i586 or i686 which isn't translated to x86 which is what engine understands.
  • engine.log will flood with warning messages like:
WARN  [org.ovirt.engine.core.vdsbroker.vdsbroker.VdsBrokerObjectsBuilder] (DefaultQuartzScheduler_Worker-55) [269a6eee] Invalid or unknown guest architecture type 'i686' received from guest agent

Resolution

Fixed in 1332723, please upgrade to rhevm-guest-agent-1.0.12-3.el5ev version to fix the issue.

As a workaround one could stop/disable the service from RHEL 5 32-bits architecture based guests to avoid flooding engine.log with warning messages.

Root Cause

  • The Guest agent wasn't translating x86 architecture strings like i386, i486, i586, i686 to string 'x86' which is the only type the engine understands.
  • Every time the engine retrieved an update from the Hypervisors which had hosts like this, the exceptions were thrown.
  • With this update the x86 architectures are now correctly translated and no more flooding to engine.log happens.

Diagnostic Steps

  • Run the ovirt-osinfo in the guest and check for results:

    # /usr/share/ovirt-guest-agent/ovirt-osinfo
distribution=Red Hat Enterprise Linux Server
version=5.11
codename=Tikanga
arch=i686  <========= This should be x86 instead
kernel=2.6.18-409.el5
type=linux

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