raft: Add some debugging information to cluster/status command.

Introduce the following info useful for cluster debugging to
cluster/status command:
- time elapsed from last start/complete election
- election trigger (e.g. timeout)
- number of disconnections
- time elapsed from last raft messaged received

Acked-by: Dumitru Ceara <dceara@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/ovsdb/raft-private.h b/ovsdb/raft-private.h
index 76b097b89..a69e37e5c 100644
--- a/ovsdb/raft-private.h
+++ b/ovsdb/raft-private.h
@@ -90,6 +90,8 @@ struct raft_server {
     /* For use in adding and removing servers: */
     struct uuid requester_sid;  /* Nonzero if requested via RPC. */
     struct unixctl_conn *requester_conn; /* Only if requested via unixctl. */
+
+    long long int last_msg_ts; /* Last received msg timestamp in ms. */
 };
 
 void raft_server_destroy(struct raft_server *);