[Gluster-users] write performance with NIC bonding

James Ching
Wed, 21 Sep 2016 20:42:53 -0000

Hi,

I'm using gluster 3.7.5 and I'm trying to get port bonding working
properly with the gluster protocol.  I've bonded the NICs using round
robin because I also bond it at the switch level with link aggregation.
I've used this type of bonding without a problem with my other
applications but for some reason gluster does not want to utilize all 3
NICs for writes but it does for reads... any of you come across this or
know why?  Here's the output of the traffic on the NICs you can see that
RX is unbalanced but TX is completely balanced across the 3 NICs.  I've
tried both mounting via glusterfs or nfs, both result in the same
imbalance. Am I missing some configuration?


root at e-gluster-01:~# ifconfig
bond0     Link encap:Ethernet
           inet addr:xxxxxxxxxxxx  Bcast:128.33.23.255 Mask:255.255.248.0
           inet6 addr: fe80::46a8:42ff:fe43:8817/64 Scope:Link
           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500 Metric:1
           RX packets:160972852 errors:0 dropped:0 overruns:0 frame:0
           TX packets:122295229 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:152800624950 (142.3 GiB)  TX bytes:138720356365
(129.1 GiB)

em1       Link encap:Ethernet
           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
           RX packets:160793725 errors:0 dropped:0 overruns:0 frame:0
           TX packets:40763142 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:152688146880 (142.2 GiB)  TX bytes:46239971255 (43.0
GiB)
           Interrupt:41

em2       Link encap:Ethernet
           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
           RX packets:92451 errors:0 dropped:0 overruns:0 frame:0
           TX packets:40750031 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:9001370 (8.5 MiB)  TX bytes:46216513162 (43.0 GiB)
           Interrupt:45

em3       Link encap:Ethernet
           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
           RX packets:86676 errors:0 dropped:0 overruns:0 frame:0
           TX packets:40782056 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:103476700 (98.6 MiB)  TX bytes:46263871948 (43.0 GiB)
           Interrupt:40