# Enabling Non-zero Value for "live\_migration\_progress\_timeout" in Nova Results Live Migration Failure

## Problem

* Live migration fails with the below errors after waiting for some time for completion.

{% tabs %}
{% tab title="None" %}

```none
WARNING nova.virt.libvirt.migration [[req-id] [user@domain.com] Production] [instance: [instance-uuid]] Live migration not completed after 896 secERROR nova.virt.libvirt.driver [[req-id] [user@domain.com]  Production] [instance: [instance-uuid]] Live Migration failure: operation aborted: migration out job: canceled by clientERROR nova.virt.libvirt.driver [[req-id] [user@domain.com] Production] [instance: [instance-uuid]] Migration operation has aborted
```

{% endtab %}
{% endtabs %}

* Setting a non-zero value of live\_migration\_progress\_timeout in **Nova** results in live migration failure.

## Environment

* Platform9 Managed OpenStack - All Versions
* Nova

## Cause

The compute service aborts a live migration when it detects that memory copy is not making progress based on the value set for live\_migration\_progress\_timeout.

## Resolution

1\. Set the value to zero for live\_migration\_progress\_timeout in */opt/pf9/etc/nova/conf.d/nova.conf* or */opt/pf9/etc/nova/conf.d/nova\_override.conf* on the host.

{% tabs %}
{% tab title="None" %}

```none
live_migration_progress_timeout = 0
```

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{% endtabs %}

2\. Setting this parameter to value zero disables progress timeouts.

3\. This value is set to 0 by default in Platform9 Managed OpenStack v4.0 and higher.

## Additional Information

Refer to the OpenStack documentation for more details on config options in [Nova](https://docs.openstack.org/nova/pike/admin/configuring-migrations.html#Live%20migration%20progress%20timeout).


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