[ovs-dev] [PATCH ovn] ovn-controller: Unix command debug/delay-nb-cfg-report.
hzhou at ovn.org
Thu Sep 10 18:19:51 UTC 2020
On Thu, Sep 10, 2020 at 11:04 AM Ilya Maximets <i.maximets at ovn.org> wrote:
> On 9/10/20 7:05 PM, Han Zhou wrote:
> > On Thu, Sep 10, 2020 at 8:39 AM Numan Siddique <numans at ovn.org> wrote:
> >> On Wed, Sep 9, 2020 at 1:41 AM Han Zhou <hzhou at ovn.org> wrote:
> >>> This command is added to avoid the flooding of nb_cfg updates from
> >>> a large nubmer of hypervisors interfering with the original SB DB
> >>> data distribution and handling, so that the e2e control plane latency
> >>> can be measured more accurately during scale testing with the command
> >>> ovn-nbctl --print-wait-time --wait=hv ...
> >>> Without this, there can be hypervisors updating back to SB before the
> >>> SB server finishes sending notifications to the rest of hypervisors.
> >>> In my test with 3K HVs, delaying the report for 2 seconds is enough to
> >>> get accurate latency report.
> >>> Signed-off-by: Han Zhou <hzhou at ovn.org>
> >> Acked-by: Numan Siddique <numans at ovn.org>
> >> Note: You have to rebase before applying.
> > Thanks Numan. I applied this to master.
> The test in this patch is not stable and fails on travis from time to time:
> Probably, 3 seconds is not enough, or maybe there is a real bug somewhere.
> Best regards, Ilya Maximets.
Thanks Ilya, I just sent a fix:
Could you take a look? Sorry for the inconvenience.
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