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Open vSwitch Neutron Router Monitoring
Overview
This plugin provides metrics for neutron virtual routers implemented with Open vSwitch. Much like the libvirt plugin,
this plugin will publish metrics both to the project associated with the virtual router, as well as the infrastructure
project. Also similar to the libvirt plugin, metric names that are cross-posted to the infrastructure project will
have the ovs. prefix.
NOTE: The /usr/bin/ovs-vsctl command requires sudo to run. See notes in ovs_cmd section below for how to customize this plugin to work around this requirement if sudo is not allowed in certain installations.
Configuration
This plugin is not currently automatically configured using the monasca-setup program -- it must be explicitly configured using the configuration file example below.
password password for the neutron user.
project_name is the project/tenant to POST metrics with the ovs. prefix.
username is the username capable of making administrative neutron calls.
neutron_refresh is the number of seconds to wait before updating the neutron router cache file. This requires two neutron calls to get port and router info, so we intentionally overload neutron by making these calls each time the agent wakes up.
auth_url is the keystone endpoint for auth.
endpoint_type is the endpoint type for making neutron calls.
region_name is used to add the region dimension to metrics.
cache_dir will be used to cache metric counters and neutron router/port info to not overwhelm neutron each time metrics are calculated/POSTed.
network_use_bits will submit network metrics in bits rather than bytes. This will stop submitting the metrics router.in_bytes_sec and router.out_bytes_sec, and instead submit router.in_bits_sec and router.out_bits_sec.
check_router_ha will check router HA status if set to true. This should be set to false if not configuring routers for HA, as setting this to true will cause the plugin to make additional neutron calls.
metadata specifies the list of router metadata keys to be included as dimensions with the cross-tenant metrics for the operations project. This is helpful to give more information about an router. Tenant name (in addition to default ID) can be provided as dimensions if tenant_name is provided in the list of metadata keys.
ovs_cmd is the location of the open vswitch command. Installations that allow sudo should set this to sudo /usr/bin/ovs-vsctl and add mon-agent ALL=(ALL) NOPASSWD:/usr/bin/ovs-vsctl to the /etc/sudoers file. Installations that don't allow usage of sudo should copy the ovs-vsctl command to another location and use the setcap command to allow the monasca-agent to run that command. The new location of the ovs-vsctl command should be what is set in the config file for ovs_cmd.
instances are not used and should be empty in ovs.yaml because like the ovs plugin it runs against all routers hosted on the node at once.
included_interface_re will include network interfaces for collecting the ovs statistics matching the given regex. By default qg, vhu(dpdk) and sg interfaces will be enabled by detection plugin.
use_absolute_metrics will submit the raw counters from ovs-vsctl command output for the given network interface. If this flag is disabled then default rate metrics will get collected for the enabled network interfaces (Default True). Please see "Mapping Metrics to Configuration Parameters" section below for what metrics are controlled by this flag.
use_rate_metrics will submit the rate metrics derived from ovs-vsctl command output for the given network interface (Default False). Please see "Mapping Metrics to Configuration Parameters" section below for what metrics are controlled by this flag.
use_health_metrics will submit the health related metrics from ovs-vsctl command output for the given network interface. Example metric names are in_dropped, out_dropped, out_error and in_errors (Default False). Please see "Mapping Metrics to Configuration Parameters" section below for what metrics are controlled by this flag.
Example config (ovs.yaml):
---
init_config:
password: password
project_name: services
username: neutron
neutron_refresh: 14400
auth_url: 'http://192.168.10.5/identity'
endpoint_type: 'publicURL'
region_name: 'region1'
cache_dir: /dev/shm
network_use_bits: true
use_absolute_metrics: true
ovs_cmd: 'sudo /usr/bin/ovs-vsctl'
included_interface_re: qg.*|vhu.*|sg.*
use_rate_metrics: true
use_health_metrics: true
instances:
- {}
Per-Router Rate Metrics
| Name | Description |
|---|---|
| vrouter.in_bytes_sec | Inbound bytes per second for the router (if network_use_bits is false) |
| vrouter.out_bytes_sec | Outgoing bytes per second for the router (if network_use_bits is false) |
| vrouter.in_bits_sec | Inbound bits per second for the router (if network_use_bits is true) |
| vrouter.out_bits_sec | Outgoing bits per second for the router (if network_use_bits is true) |
| vrouter.in_packets_sec | Incoming packets per second for the router |
| vrouter.out_packets_sec | Outgoing packets per second for the router |
| vrouter.in_dropped_sec | Incoming dropped packets per second for the router |
| vrouter.out_dropped_sec | Outgoing dropped packets per second for the router |
| vrouter.in_errors_sec | Number of incoming errors per second for the router |
| vrouter.out_errors_sec | Number of outgoing errors per second for the router |
Per-Router Metrics
| Name | Description |
|---|---|
| vrouter.in_bytes | Inbound bytes for the router (if network_use_bits is false) |
| vrouter.out_bytes | Outgoing bytes for the router (if network_use_bits is false) |
| vrouter.in_bits | Inbound bits for the router (if network_use_bits is true) |
| vrouter.out_bits | Outgoing bits for the router (if network_use_bits is true) |
| vrouter.in_packets | Incoming packets for the router |
| vrouter.out_packets | Outgoing packets for the router |
| vrouter.in_dropped | Incoming dropped packets for the router |
| vrouter.out_dropped | Outgoing dropped packets for the router |
| vrouter.in_errors | Number of incoming errors for the router |
| vrouter.out_errors | Number of outgoing errors for the router |
| vrouter.max_bw_kb | Maximum bandwidth possible for the router based on the instances using the router (if publish_router_capacity is true) |
Per-DHCP port Metrics
| Name | Description |
|---|---|
| vswitch.in_bytes | Inbound bytes for the DHCP port (if network_use_bits is false) |
| vswitch.out_bytes | Outgoing bytes for the DHCP port (if network_use_bits is false) |
| vswitch.in_bits | Inbound bits for the DHCP port (if network_use_bits is true) |
| vswitch.out_bits | Outgoing bits for the DHCP port (if network_use_bits is true) |
| vswitch.out_packets | Outgoing packets for the DHCP port |
| vswitch.in_packets | Incoming packets for the DHCP port |
| vswitch.out_dropped | Incoming dropped packets for the DHCP port |
| vswitch.in_dropped | Outgoing dropped packets for the DHCP port |
| vswitch.out_error | Errors transmitted for the DHCP port |
| vswitch.in_error | Errors received for the DHCP port |
Per-DHCP Rate Metrics
| Name | Description |
|---|---|
| vswitch.out_bytes_sec | Outgoing Bytes per second on DHCP port(if network_use_bits is false) |
| vswitch.in_bytes_sec | Incoming Bytes per second on DHCP port(if network_use_bits is false) |
| vswitch.out_bits_sec | Outgoing Bits per second on DHCP port(if network_use_bits is true) |
| vswitch.in_bits_sec | Incoming Bits per second on DHCP port(if network_use_bits is true) |
| vswitch.out_packets_sec | Outgoing packets per second for the DHCP port |
| vswitch.in_packets_sec | Incoming packets per second for the DHCP port |
| vswitch.out_dropped_sec | Outgoing dropped packets per second for the DHCP port |
| vswitch.in_dropped_sec | Incoming dropped per second for the DHCP port |
| vswitch.out_error_sec | Outgoing errors per second for the DHCP port |
| vswitch.in_error_sec | Incoming errors per second for the DHCP port |
Per-Host Metrics
| Name | Description |
|---|---|
| ovs.vrouter.host_max_bw_kb | Maximum bandwidth possible for routers on the the host based on the instances using those routers (if publish_router_capacity is true). Only published to the operations tenant. |
| ovs.vrouter.active_routers | Count of active routers on this host (only published to the operations tenant) |
Mapping Metrics to Configuration Parameters
Configuration parameters can be used to control which metrics are reported by ovs plugin. There are 4 parameters currently in ovs config file: use_rate_metrics, use_absolute_metrics, use_health_metrics and publish_router_capacity.
| Tuning Knob | Admin Metric Name | Tenant Metric Name |
|---|---|---|
| use_rate_metrics (default: False) | ovs.vrouter.in_bytes_sec | vrouter.in_bytes_sec |
| ovs.vrouter.in_packets_sec | vrouter.in_packets_sec | |
| ovs.vrouter.out_bytes_sec | vrouter.out_bytes_sec | |
| ovs.vrouter.out_packets_sec | vrouter.out_packets_sec | |
| use_absolute_metrics (default: True) | ovs.vrouter.in_bytes | vrouter.in_bytes |
| ovs.vrouter.in_packets | vrouter.in_packets | |
| ovs.vrouter.out_bytes | vrouter.out_bytes | |
| ovs.vrouter.out_packets | vrouter.out_packets | |
| use_health_metrics (default: False) and use_rate_metrics (default: False) | ovs.vrouter.in_dropped_sec | vrouter.in_dropped_sec |
| ovs.vrouter.in_errors_sec | vrouter.in_errors_sec | |
| ovs.vrouter.out_dropped_sec | vrouter.out_dropped_sec | |
| ovs.vrouter.out_errors_sec | vrouter.out_errors_sec | |
| use_health_metrics(default: False) and use_absolute_metrics (default: True) | ovs.vrouter.in_dropped | vrouter.in_dropped |
| ovs.vrouter.in_errors | vrouter.in_errors | |
| ovs.vrouter.out_dropped | vrouter.out_dropped | |
| ovs.vrouter.out_errors | vrouter.out_errors | |
| publish_router_capacity (default: False) | ovs.vrouter.max_bw_kb | vrouter.max_bw_kb |
| ovs.vrouter.host_max_bw_kb | N/A |
NOTE: 1) per router metrics start with vrouter.* or ovs.vrouter.* 2) per DHCP metrics start with vswitch.* or ovs.vswitch.* 3) Default use_absolute_metrics=true, use_rate_metrics=false, use_health_metrics=false
Router Metric Dimensions
| Dimension Name | Customer Value | Operations Value |
|---|---|---|
| hostname | (N/A) | hostname hosting the router |
| resource_id | resource ID of router | resource ID of router |
| service | "networking" | "networking" |
| component | "ovs" | "ovs" |
| router_name | name of the virtual router | name of the virtual router |
| tenant_id | (N/A) | id of the project owner of the router |
| tenant_name | (N/A) | name of the project owner of the router (if configured to publish) |
| port_id | port ID of the router | port ID of the router |
OVS Port Metric Dimensions
| Dimension Name | Customer Value | Operations Value |
|---|---|---|
| hostname | (N/A) | hostname hosting the ports |
| resource_id | resource ID of port | resource id of the port |
| service | "networking" | "networking" |
| component | "ovs" | "ovs" |
| tenant_id | (N/A) | project owner of the port |
| tenant_name | (N/A) | name of the project owner of the router (if configured to publish) |
| port_id | port ID of VM | port ID of VM |
License
(C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP