Article ID: 124293, created on Jan 26, 2015, last review on Jun 17, 2016

  • Applies to:
  • Operations Automation 5.5
  • Virtuozzo 6.0

Symptoms

All virtual machines cannot be managed from PACI on one particular PCS node. The following symptoms are possible:

  1. On attempting to stop a virtual machine it gets stuck in stopping state.

  2. New virtual machines cannot be created — it gets stuck in "Creation in progress" state.

  3. On attempting to open console session to a virtual machine it fails with error:

    Timeout for console initialization has expired.
    
  4. On hardware node parallels-server service may become dead:

    ~# /etc/init.d/parallels-server status
    parallels-server dead but subsys locked
    
  5. A lot of stunnel errors are logged in /var/log/parallels.log:

    F /disp:823115:833017/ Error: the stunnel has quitted unexectedly
    
  6. The following version of stunnel package was installed:

    ~# rpm -q stunnel
    stunnel-4.29-3.el6_6.1.x86_64
    

Cause

Due do incompatibility with the new version of stunnel package provided by CloudLinux, Parallels Dispatcher Service may misbehave.

Resolution

The issue was fixed permanently since Parallels Cloud Server 6.0 Update 9 (6.0.9-2806) in scope of the bug with internal ID PSBM-31110.

Install all the pending updates and reboot into the latest vzkernel.

In case installing updates was postponed, the stunnel package should be downgraded.

Download and install stunnel-4.29-3.el6_4.x86_64 version:

~# rpm -Uvh --oldpackage http://updates.cloudserver.parallels.com/cloudserver/6.0/Release/Packages/stunnel-4.29-3.el6_4.x86_64.rpm

Exclude stunnel package from yum repositories:

~# sed -i '/psbm6-updates.mirrorlist/ a\exclude=stunnel*' /etc/yum.repos.d/cloudlinux-parallels.repo

Restart Parallels Dispatcher service.

NOTE: restarting Dispatcher is required and it will restart all Virtual Environments (both Containers and Virtual Machines)

~# /etc/init.d/parallels-server restart

The workaround should be reverted before updating to Parallels Cloud Server 6.0 Update 9 (6.0.9-2806), if stunnel was excluded globally from all repositories:

125156 PACI suspended or stopping virtual machines after updating to PCS 6 update 9

Search Words

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