9.9. 对 OVS-DPDK 配置进行故障排除
本节介绍对 OVS-DPDK 配置进行故障排除的步骤。
检查网桥配置，并确认网桥具有
datapath_type=netdev。# ovs-vsctl list bridge br0 _uuid : bdce0825-e263-4d15-b256-f01222df96f3 auto_attach : [] controller : [] datapath_id : "00002608cebd154d" datapath_type : netdev datapath_version : "<built-in>" external_ids : {} fail_mode : [] flood_vlans : [] flow_tables : {} ipfix : [] mcast_snooping_enable: false mirrors : [] name : "br0" netflow : [] other_config : {} ports : [52725b91-de7f-41e7-bb49-3b7e50354138] protocols : [] rstp_enable : false rstp_status : {} sflow : [] status : {} stp_enable : false另外，您可以查看错误的日志，如容器无法启动。
# less /var/log/containers/neutron/openvswitch-agent.log
确认
ovs-dpdk的 Poll Mode Driver CPU 掩码已固定到 CPU。如果是超线程，请使用同级 CPU。例如，要检查
CPU4的同级设备，请运行以下命令：# cat /sys/devices/system/cpu/cpu4/topology/thread_siblings_list 4,20
CPU4的同级是CPU20，因此使用以下命令：# ovs-vsctl set Open_vSwitch . other_config:pmd-cpu-mask=0x100010
显示状态：
# tuna -t ovs-vswitchd -CP thread ctxt_switches pid SCHED_ rtpri affinity voluntary nonvoluntary cmd 3161 OTHER 0 6 765023 614 ovs-vswitchd 3219 OTHER 0 6 1 0 handler24 3220 OTHER 0 6 1 0 handler21 3221 OTHER 0 6 1 0 handler22 3222 OTHER 0 6 1 0 handler23 3223 OTHER 0 6 1 0 handler25 3224 OTHER 0 6 1 0 handler26 3225 OTHER 0 6 1 0 handler27 3226 OTHER 0 6 1 0 handler28 3227 OTHER 0 6 2 0 handler31 3228 OTHER 0 6 2 4 handler30 3229 OTHER 0 6 2 5 handler32 3230 OTHER 0 6 953538 431 revalidator29 3231 OTHER 0 6 1424258 976 revalidator33 3232 OTHER 0 6 1424693 836 revalidator34 3233 OTHER 0 6 951678 503 revalidator36 3234 OTHER 0 6 1425128 498 revalidator35 *3235 OTHER 0 4 151123 51 pmd37* *3236 OTHER 0 20 298967 48 pmd38* 3164 OTHER 0 6 47575 0 dpdk_watchdog3 3165 OTHER 0 6 237634 0 vhost_thread1 3166 OTHER 0 6 3665 0 urcu2
