[ovs-dev] [PATCH 3/3] ovn-controller-vtep.at: Fix intermittent test failure.

Alex Wang alexw at nicira.com
Sun Aug 16 16:56:55 UTC 2015

When testing the recreation of 'chassis' table entry by 'ovn-controller-
vtep'.  The removal of 'chassis' table entry by the 'ovn-sbctl' could
cause 'Broken pipe' warning in ovsdb-server.log.  This is due to the
race between 'ovn-sbctl' exiting and 'ovn-controller-vtep' adding
the chassis back.  So, if the 'ovn-sbctl' exits right when the
ovsdb-server tries to send update of readd of the deleted 'chassis',
the sending will fail with 'Broken pipe' error.

Signed-off-by: Alex Wang <alexw at nicira.com>
 tests/ovn-controller-vtep.at |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/ovn-controller-vtep.at b/tests/ovn-controller-vtep.at
index 82f6166..12d0134 100644
--- a/tests/ovn-controller-vtep.at
+++ b/tests/ovn-controller-vtep.at
@@ -104,6 +104,10 @@ OVS_WAIT_UNTIL([test -n "`grep WARN ovn-controller-vtep.log`"])
 AT_CHECK([sed -n 's/^.*\(|WARN|.*\)$/\1/p' ovn-controller-vtep.log], [0], [dnl
 |WARN|Chassis for VTEP physical switch (br-vtep) disappears, maybe deleted by ovn-sbctl, adding it back
+# this removal of chassis could cause 'Broken pipe' warning in the ovsdb-server.log,
+# due to the race between 'ovn-sbctl' exiting and 'ovn-controller-vtep' adding
+# the chassis back.  so just removes the 'Broken pipe' warning from ovsdb-server.log.
+AT_CHECK([sed -i '/Broken pipe/d' ovsdb-server.log])
 # changes the tunnel_ip on physical switch, watches the update of chassis's
 # encap.

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