high number of interface RX errors on ovirtmgmt network
I have a three node HCI setup on Dell R720s running the latest stable version of 4.3.3 Each hosts has a 1gig link and a 10gig link. The 1gig is used for ovirt management network and 10gig link is used for backend glusterFS traffic. I haven't noticed before but after installing ovirt metrics store I'm seeing that gig interface used for ovirtmgmt on all three hosts are showing high RX error rates. The 10gig interfaces for glusterFS on all three hosts appear to be fine. The 1gig ethernet controllers are: Broadcom Inc. and subsidiaries NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10) Other physical servers on the same network/switches outside of oVirt have zero RX errors. Here is an example of what I'm seeing: host0: # ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:9a:2d brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 51777532544474 36233202312 416993 0 0 2062421 TX: bytes packets errors dropped carrier collsns 7284362442704 18685883330 0 0 0 0 host1: # ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:99:31 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 9518766859330 14424644226 89638 0 0 2056578 TX: bytes packets errors dropped carrier collsns 27866585257227 22323979969 0 0 0 0 host2: # ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:92:50 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 6409138012195 13045254148 14825 0 0 2040655 TX: bytes packets errors dropped carrier collsns 31577745516683 23466818659 0 0 0 0 Anyone have any ideas why the RX error rate on the ovirtmgmt network could be so high?
I increased RX ring params on the interface and restarted networking on each host. So far the error counts on all three hosts 1gig interfaces are still at zero. Will see how it holds up On Thu, Jun 6, 2019 at 12:20 PM Jayme <jaymef@gmail.com> wrote:
I have a three node HCI setup on Dell R720s running the latest stable version of 4.3.3
Each hosts has a 1gig link and a 10gig link. The 1gig is used for ovirt management network and 10gig link is used for backend glusterFS traffic.
I haven't noticed before but after installing ovirt metrics store I'm seeing that gig interface used for ovirtmgmt on all three hosts are showing high RX error rates. The 10gig interfaces for glusterFS on all three hosts appear to be fine.
The 1gig ethernet controllers are: Broadcom Inc. and subsidiaries NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)
Other physical servers on the same network/switches outside of oVirt have zero RX errors.
Here is an example of what I'm seeing:
host0:
# ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:9a:2d brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 51777532544474 36233202312 416993 0 0 2062421 TX: bytes packets errors dropped carrier collsns 7284362442704 18685883330 0 0 0 0
host1:
# ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:99:31 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 9518766859330 14424644226 89638 0 0 2056578 TX: bytes packets errors dropped carrier collsns 27866585257227 22323979969 0 0 0 0
host2:
# ip -s link show em3 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:cc:92:50 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 6409138012195 13045254148 14825 0 0 2040655 TX: bytes packets errors dropped carrier collsns 31577745516683 23466818659 0 0 0 0
Anyone have any ideas why the RX error rate on the ovirtmgmt network could be so high?
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Jayme