---
title: "OpsMgr Agent Restarts on Hyper-V Host"
description: "OpsMgr agent on a Hyper-V host restarts with the message: 'Health Service exceeded Process\\Handle Count or Private Bytes threshold.' OpsMgr agent processes a large number of workflows, which may cause high numbers of used handles and private bytes..."
canonical: "https://helpcenter.veeam.com/docs/mp/hyperv_guide/health_service_restarts.html"
breadcrumb: "Veeam MP for Microsoft Hyper-V User Guide > Troubleshooting > OpsMgr Agent Restarts on Hyper-V Host"
dateModified: "2026-09-10"
---

# OpsMgr Agent Restarts on Hyper-V Host

## Symptoms

OpsMgr agent on a Hyper-V host restarts with the message: '*Health Service exceeded Process\\Handle Count or Private Bytes threshold.'*

## Cause

OpsMgr agent processes a large number of workflows, which may cause high numbers of used handles and private bytes for the *Monitoring Host* process. When the handle or private bytes counters reach their thresholds, the OpsMgr agent will be automatically restarted by a default Microsoft monitor.

## Solution

If OpsMgr agent restarts frequently (for example, every couple of hours), increase threshold values for the *System Center Management Health Service Performance* monitors:

- *Health Service Handle Count Threshold*
- *Health Service Private Bytes Threshold*
- *Monitoring Host Handle Count Threshold*
- *Monitoring Host Private Bytes Threshold*

The handle count thresholds can be increased up to 40000 handles. The private bytes threshold can be increased to 1610612736 bytes (1.5 GB).