On Wed, Jul 12, 2023 at 8:20 PM Dumitru Ceara <[email protected]> wrote:

> On 7/7/23 10:46, Ales Musil wrote:
> > On Wed, Jul 5, 2023 at 5:57 PM Xavier Simonart <[email protected]>
> wrote:
> >
> >> Usually, when cleaning up a system test we execute (for the ovn-vswitchd
> >> process):
> >> - OVS_TRAFFIC_VSWITCHD_STOP (i.e. ovs-appctl -t $1 exit --cleanup, wait
> up
> >> to 30 seconds
> >>   and report failure if not properly cleaned up).
> >> - kill_ovs_vswitchd (i.e. if ovs-vsitwhd still running,
> >>   ovs-appctl -t ovs-vswitchd exit --cleanup, wait 1 to 10 seconds and
> kill
> >> ovs-vswitvchd
> >>   if not properly cleaned up).
> >>
> >> If we do not execute OVS_TRAFFIC_VSWITCHD_STOP, wait time is much
> smaller
> >> which might result in
> >> - clean up not done properly, ovs-vswitchd killed, ovs-netdev not
> deleted,
> >> and no error reported
> >> - next tests will fail
> >>
> >> Using this patch, we properly execute OVS_TRAFFIC_VSWITCHD_STOP, so the
> >> delay waiting for
> >> ovs-vswitchd to exit is longer, and, if by any chance this delay is
> still
> >> too short,
> >> the proper test will fail (i.e. the first test failing will be the one
> >> unable to clean).
> >>
> >> Note that, after this patch, some extra tests might fail such as
> >> "load-balancer template IPv4".
> >> This is due to the fact that, instead of killing ovn-controller at exit,
> >> we now properly exit and check the unexpected presence of warnings. In
> >> other words, we might now higlight some existing issues which were
> >> ignoring before.
>
> Hi Xavier, Ales,
>
> Ales shared this incremental privately which adds the "offending"
> warnings to the list of ignored ones.  At the same time we opened a bug
> to track the reason why the warning was issued in the first place:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=2222252
>
> diff --git a/tests/ofproto-macros.at b/tests/ofproto-macros.at
> index f4ebdafc72..b0101330f5 100644
> --- a/tests/ofproto-macros.at
> +++ b/tests/ofproto-macros.at
> @@ -287,6 +287,7 @@ check_logs () {
>  /timeval.*context switches: [[0-9]]* voluntary, [[0-9]]* involuntary/d
>  /ovs_rcu.*blocked [[0-9]]* ms waiting for .* to quiesce/d
>  /Dropped [[0-9]]* log messages/d
> +/.*Trying to release unknown interface.*/d
>  /|WARN|/p
>  /|ERR|/p
>  /|EMER|/p" ${logs}
> ---
>
> I had another look at this patch and I think we should also add the
> following change:
>
> diff --git a/tests/system-common-macros.at b/tests/system-common-macros.at
> index 6b6181e8cc..97c6e433bb 100644
> --- a/tests/system-common-macros.at
> +++ b/tests/system-common-macros.at
> @@ -488,7 +488,7 @@ AT_CHECK([ovn-nbctl get logical_router_port rp-sw0
> ipv6_prefix | cut -c3-16], [0
>  []
>  ])
>
> -kill $(pidof ovn-controller)
> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
>
>  as ovn-sb
>  OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> ---
>
> If this looks OK to you can fold both of them in and remove the
> note from the commit log.
>
> Please let me know what you think.
>
> Thanks,
> Dumitru
>
> Hi Ales, Dumitru

Both look OK to me. Thanks, Dumitru and Ales

Thanks
Xavier

> >>
> >> Signed-off-by: Xavier Simonart <[email protected]>
> >>
> >> ---
> >> v2: - updated based on Ales' feedback:
> >>       - some cleanup wrongly done twice (e.g. for DNAT LR hairpin IPv4)
> >> causing test to always fail
> >>       - replaced the 'kill ovn-controller' in some tests by proper
> cleanup
> >>     - added a few additional missing OVS_WAIT_AND_EXIT (ovsdb-server)
> >> ---
> >>  tests/system-ovn.at | 103 ++++++++++++++++++++++++++++++++++++++++++--
> >>  1 file changed, 99 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/tests/system-ovn.at b/tests/system-ovn.at
> >> index 44a8072d6..8f6a647a0 100644
> >> --- a/tests/system-ovn.at
> >> +++ b/tests/system-ovn.at
> >> @@ -5819,6 +5819,21 @@
> >>
> tcp,orig=(src=42.42.42.3,dst=42.42.42.2,sport=<clnt_s_port>,dport=4242),reply=(s
> >>
> >>
> tcp,orig=(src=42.42.42.3,dst=66.66.66.66,sport=<clnt_s_port>,dport=666),reply=(src=42.42.42.2,dst=42.42.42.3,sport=4242,dport=<clnt_s_port>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> >>  ])
> >>
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >> +as
> >> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >> +/connection dropped.*/d"])
> >> +
> >>  AT_CLEANUP
> >>  ])
> >>
> >> @@ -5915,6 +5930,21 @@
> >>
> tcp,orig=(src=4242::3,dst=4242::2,sport=<clnt_s_port>,dport=4242),reply=(src=424
> >>
> >>
> tcp,orig=(src=4242::3,dst=6666::1,sport=<clnt_s_port>,dport=666),reply=(src=4242::2,dst=4242::3,sport=4242,dport=<clnt_s_port>),zone=<cleared>,mark=2,protoinfo=(state=<cleared>)
> >>  ])
> >>
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >> +as
> >> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >> +/connection dropped.*/d"])
> >> +
> >>  AT_CLEANUP
> >>  ])
> >>
> >> @@ -6716,7 +6746,7 @@ AT_CHECK([ovn-nbctl set Logical_Switch_Port sw02
> >> options:qos_burst=1000000])
> >>  OVS_WAIT_UNTIL([tc class show dev ovs-public | \
> >>                  grep -q 'class htb .* prio 0 rate 5Gbit ceil 6Gbit
> burst
> >> 125000b cburst 124500b'])
> >>
> >> -kill $(pidof ovn-controller)
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>
> >>  as ovn-sb
> >>  OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> @@ -6867,7 +6897,7 @@ Allowing connections from 1000::a
> >>  wait_column "up" nb:bfd status logical_port=rp-public
> >>  ovn-nbctl destroy bfd $uuid_v6
> >>
> >> -kill $(pidof ovn-controller)
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>
> >>  as ovn-sb
> >>  OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> @@ -7121,7 +7151,7 @@ NS_CHECK_EXEC([vm2], [ping -q -c 3 -i 0.3 -w 2
> >> 172.18.2.10 | FORMAT_PING], \
> >>  3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >>  ])
> >>
> >> -kill $(pidof ovn-controller)
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>
> >>  as ovn-sb
> >>  OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> @@ -7238,6 +7268,21 @@ NS_CHECK_EXEC([vm1], [ping -q -c 3 -i 0.3 -w 2
> >> 172.18.2.12 | FORMAT_PING], \
> >>  3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >>  ])
> >>
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >> +as
> >> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >> +/connection dropped.*/d"])
> >> +
> >>  AT_CLEANUP
> >>  ])
> >>
> >> @@ -7421,7 +7466,7 @@ OVS_WAIT_UNTIL([
> >>  ])
> >>  kill $(pidof tcpdump)
> >>
> >> -kill $(pidof ovn-controller)
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >>
> >>  as ovn-sb
> >>  OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> @@ -8494,6 +8539,16 @@
> >>
> tcp,orig=(src=192.168.2.2,dst=172.16.1.2,sport=<cleared>,dport=<cleared>),reply=
> >>  AT_CHECK([ovs-appctl dpctl/flush-conntrack])
> >>
> >>  OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >>  as
> >>  OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >>  /connection dropped.*/d"])
> >> @@ -8646,6 +8701,16 @@ NS_CHECK_EXEC([ls1p1], [ping6 -q -c 3 -i 0.3 -w 2
> >> 1711::1  | FORMAT_PING], \
> >>  ])
> >>
> >>  OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >>  as
> >>  OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >>  /connection dropped.*/d
> >> @@ -9168,6 +9233,21 @@ OVS_WAIT_UNTIL([
> >>      test "${requests}" -ge "6"
> >>  ])
> >>
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >> +as
> >> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >> +/connection dropped.*/d"])
> >> +
> >>  AT_CLEANUP
> >>  ])
> >>
> >> @@ -9307,6 +9387,21 @@ OVS_WAIT_UNTIL([
> >>      test "${requests}" -ge "6"
> >>  ])
> >>
> >> +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> >> +
> >> +as ovn-sb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as ovn-nb
> >> +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> >> +
> >> +as northd
> >> +OVS_APP_EXIT_AND_WAIT([NORTHD_TYPE])
> >> +
> >> +as
> >> +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port patch-.*/d
> >> +/connection dropped.*/d"])
> >> +
> >>  AT_CLEANUP
> >>  ])
> >>
> >> --
> >> 2.31.1
> >>
> >>
> > Looks good to me, thanks!
> >
> > Acked-by: Ales Musil <[email protected]>
> >
>
>
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