ovn-ctl: Set max open files limit for SB DB.

Increase the limit on the number of open file descriptors, because
SB DB may connect to large number of chassises.

Acked-by: aginwala <aginwala@ebay.com>
Signed-off-by: Han Zhou <hzhou8@ebay.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

diff --git a/ovn/utilities/ovn-ctl b/ovn/utilities/ovn-ctl
index cca5facdcf55ca7ffa5a52f213be8746038e777a..d348b47f6e2c2504e00776dfa51a1d82b82a3eb0 100755 (executable)
--- a/ovn/utilities/ovn-ctl
+++ b/ovn/utilities/ovn-ctl
@@ -236,6 +236,14 @@ start_nb_ovsdb() {
 }
 
 start_sb_ovsdb() {
+    # Increase the limit on the number of open file descriptors, because
+    # SB DB may connect to large number of chassises, on top of connections
+    # for cluster members, northd, and serveral local unix sockets.
+    MAXFD=8192
+    if [ $(ulimit -n) -lt $MAXFD ]; then
+        ulimit -n $MAXFD
+    fi
+
     start_ovsdb__ SB sb OVN_Southbound SB_Global
 }