[ovs-discuss] |timeval|WARN|Unreasonably long 2020ms poll interval (365882ms user, 464906ms system)

yangwanli yangwanli at jd.com
Tue May 19 10:32:03 UTC 2015


Hi, 
I'm a cloud computing R&D engineer. Use OVS as virtual switch, all virtual machines and containers communicate with OVS.
I use OVS  VLAN.
OpenvSwitch Version 2.3.1  (nothing change)
CentOS 6.6
In the process of I use, encounter the flowing problems.
Need your help!
1、ovs-vswitchd.log always report warnings:
2015-05-17T00:52:50.463Z|00575|timeval|WARN|Unreasonably long 2020ms poll interval (365882ms user, 464906ms system)
2015-05-17T00:52:50.463Z|00576|timeval|WARN|faults: 708 minor, 0 major
2015-05-17T00:52:50.463Z|00577|timeval|WARN|disk: 0 reads, 392 writes
2015-05-17T00:52:50.463Z|00578|timeval|WARN|context switches: 19571142 voluntary, 2080 involuntary
2015-05-17T00:52:50.463Z|00579|coverage|INFO|Skipping details of duplicate event coverage for hash=35d02982
2015-05-17T03:26:36.336Z|00580|timeval|WARN|Unreasonably long 2020ms poll interval (380306ms user, 483259ms system)
2015-05-17T03:26:36.336Z|00581|timeval|WARN|faults: 708 minor, 0 major
2015-05-17T03:26:36.336Z|00582|timeval|WARN|disk: 0 reads, 400 writes
2015-05-17T03:26:36.336Z|00583|timeval|WARN|context switches: 20299734 voluntary, 2174 involuntary
2015-05-17T03:26:36.336Z|00584|coverage|INFO|Skipping details of duplicate event coverage for hash=35d02982

2、I also encounter this problem:
    when I execute 
    ovs-ofctl dump-flows br-int 
   not always reponse,  but ovs-vsctl show is OK!

Thanks!
WanLi Yang




WanLi Yang
JD.COM 
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