Article ID: 120563, created on Mar 16, 2014, last review on Jun 17, 2016

  • Applies to:
  • Virtuozzo 6.0
  • Virtual Automation 6.0


When registering Hardware Node in PVA Management Node, web interface throws following error:

Failed to register the physical server. Make sure that it has PVA Agent for Virtuozzo or for Parallels Server installed and is accessible via the network. 
[code -4](Connection to vzagent was closed [Pipe read error: 104 (Connection reset by peer)])

On a Hardware Node PVA Agent service is failed:

# service pvaagentd status
pvaagentd dead but pid file exists

PVA Agent logs indicate crash with similar Backtrace:

T=14:23:05:506; L=(err); PID=57145; TID=7f97bc897760; P=VZLCommon [sigCoreDump] CORE DUMP
Backtrace for 3 frames
/opt/pva/agent/lib/ [0x7f97b8c2ebc3]
/lib64/ [0x7f97b8799710]

When attempted to re-install PVA Agent, pva-setup reports that sendmail is missing:

        > Processing 35 package of 35
        > Performing PVA 6.0 postinstall configuration
[ERROR] Failed to execute hint /root/pva_agent/./installer/linux/x86_64/11/6.0-2160/hints/
error reading information on service sendmail: No such file or directory
ERROR: Can't configure startup of sendmail


Package sendmail is crucial for PVA Agent functionality. Without this package PVA Agent will malfunction.


To solve the issue install sendmail package back on a host:

# yum install sendmail

Once sendmail is installed it might be necessary to re-install PVA Agent.

Search Words


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