Currently DNS resolution is a blocking call in OVN controller.
If DNS server is not reachable for any reason then, ovn-controller
thread blocks for longer time and other events are not processed.
Ex: If we try to run ovn-appctl commands during this then, ovn-controller
will not respond for a longer time.
Signed-off-by: Naveen Yerramneni <naveen.yerramn...@nutanix.com>
---
controller/ovn-controller.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index c9ff5967a..b84f6dfd4 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -85,6 +85,7 @@
#include "mirror.h"
#include "mac_cache.h"
#include "statctrl.h"
+#include "lib/dns-resolve.h"
VLOG_DEFINE_THIS_MODULE(main);
@@ -5090,6 +5091,7 @@ main(int argc, char *argv[])
mirror_init();
vif_plug_provider_initialize();
statctrl_init();
+ dns_resolve_init(true);
/* Connect to OVS OVSDB instance. */
struct ovsdb_idl_loop ovs_idl_loop = OVSDB_IDL_LOOP_INITIALIZER(
@@ -6176,6 +6178,7 @@ loop_done:
unixctl_server_destroy(unixctl);
service_stop();
ovsrcu_exit();
+ dns_resolve_destroy();
exit(retval);
}
--
2.36.6
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