openstack/kolla
Code Issues Proposed changes

Increase max scheduling attempts to 10

Browse Source 
At high scale, such as 64 nodes with 13TB ram and 2600 cores, nova
seems to struggle when scheduling 100+ VMs at the same time.  The
issue is unrelated to the database, as the error printed indicates
the max_scheduling_attempts have been reached.  Increase that value
to something more fitting of a 100 node cluster.

Change-Id: I8982d77c7c66db8f7c95b9fd73f58ceb66dbd723
Closes-Bug: #1563664
This commit is contained in:
Steven Dake 2016-04-03 21:19:22 -04:00
parent ba4bcdbbe8
commit 8cdd8c4ec3
1 changed files with 2 additions and 0 deletions
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2
ansible/roles/nova/templates/nova.conf.j2
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@ -24,6 +24,8 @@ ec2_listen_port = {{ nova_api_ec2_port }}
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
scheduler_max_attempts = 10
{% if neutron_plugin_agent == "openvswitch" %}
linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
{% elif neutron_plugin_agent == "linuxbridge" %}