Commit 9b5422a98f81("ovs-lib: Try to call exit before killing.")
introduced a problem where internal interfaces are destroyed and
recreated, losing their IP address.
Commit 9aad5a5a96ba("ovs-vswitchd: Preserve datapath ports across
graceful shutdown.") fixed the problem by changing ovs-vswitchd
to preserve the ports on `ovs-appctl exit`. Unfortunately, this fix is
not enough during upgrade from <= 2.5.0, where an old ovs-vswitchd is
running (without the fix) and a new ovs-lib script is performing the
restart.
The problem seem to affect both RHEL and ubuntu
This commit fixes the upgrade by looking at the running ovs-vswitchd
version and avoid using `ovs-appctl exit` for old (before 2.5.90)
versions.
Suggested-by: Gurucharan Shetty <[email protected]>
Signed-off-by: Daniele Di Proietto <[email protected]>
---
utilities/ovs-lib.in | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/utilities/ovs-lib.in b/utilities/ovs-lib.in
index 773efb3..ec8b82a 100644
--- a/utilities/ovs-lib.in
+++ b/utilities/ovs-lib.in
@@ -202,10 +202,30 @@ start_daemon () {
stop_daemon () {
if test -e "$rundir/$1.pid"; then
if pid=`cat "$rundir/$1.pid"`; then
- for action in EXIT .1 .25 .65 1 \
- TERM .1 .25 .65 1 1 1 1 \
- KILL 1 1 1 2 10 15 30 \
- FAIL; do
+
+ actions="TERM .1 .25 .65 1 1 1 1 \
+ KILL 1 1 1 2 10 15 30 \
+ FAIL"
+ graceful="EXIT .1 .25 .65 1"
+ if [ "$1" = "ovs-vswitchd" ]; then
+ version=`ovs-appctl -T 1 -t $rundir/$1.$pid.ctl version`
+ version_num=`echo $version | cut -d ' ' -f 4`
+ version_maj=`echo $version_num | cut -d '.' -f 1`
+ version_min=`echo $version_num | cut -d '.' -f 2`
+ version_rev=`echo $version_num | cut -d '.' -f 3`
+
+ # Use `ovs-appctl exit` for ovs-vswitchd only if version
+ # is >= 2.5.90. On previous versions it's not safe, because
+ # internal ports might lose their IP address.
+ if [ "$version_maj" -gt 2 \
+ -o "$version_min" -gt 5 \
+ -o "$version_rev" -ge 90 ]; then
+ actions="$graceful $actions"
+ fi
+ else
+ actions="$graceful $actions"
+ fi
+ for action in $actions; do
if pid_exists "$pid" >/dev/null 2>&1; then :; else
return 0
fi
--
2.8.1
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