Note
This feature is available starting from the MCP 2019.2.12 maintenance update. Before using the feature, follow the steps described in Apply maintenance updates.
On every HTTP resource request, such as create, update, list, and so on, the
OpenContrail contrail-api server sends statistics messages to the collector
service, which can potentially cause high load on analytics nodes. To disable
such statistics messages, use the disable_vnc_api_stats option of the
contrail-api service. By default disable_vnc_api_stats is set to
True.
To enable or disable VNC API statistics:
Log in to the Salt Master node.
In classes/cluster/<cluster_name>/opencontrail/control.yml of your
Reclass model, specify the required value for the disable_vnc_api_stats
parameter. To enable sending statistics messages to the OpenContrail
analytics nodes, set disable_vnc_api_stats to False. To suppress the
statistics messages, set disable_vnc_api_stats to True. For example:
parameters:
opencontrail:
...
config
...
disable_vnc_api_stats: True
...
Apply the changes:
salt -C 'I@opencontrail:control' state.sls_id /etc/contrail/contrail-api.conf opencontrail
Restart the contrail-api service:
Warning
Restarting the contrail-api service on all nodes at once
causes interruption for CRUD operations with networking objects. Plan the
restart in advance or restart contrail-api on each node one by one
using a modified target in the following Salt command.
If one worker is configured for the OpenContrail API:
salt -C 'I@opencontrail:control' cmd.run "doctrail controller service contrail-api* restart"
If multiple workers are configured for the OpenContrail API:
salt -C 'I@opencontrail:control' cmd.run "doctrail controller systemctl restart contrail-api@*"