glusterd: Ping timer implmentation

This patch refactors the existing client ping timer implementation, and makes
use of the common code for implementing both client ping timer and the
glusterd ping timer.

A new gluster rpc program for ping is introduced. The ping timer is only
started for peers that have this new program. The deafult glusterd ping
timeout is 30 seconds. It is configurable by setting the option
'ping-timeout' in glusterd.vol .

Also, this patch introduces changes in the glusterd-handshake path. The client
programs for a peer are now set in the callback of dump_versions, for both
the older handshake and the newer op-version handshake. This is the only place
in the handshake process where we know what programs a peer supports.

Change-Id: I035815ac13449ca47080ecc3253c0a9afbe9016a
BUG: 1038261
Signed-off-by: Vijaikumar M <vmallika@redhat.com>
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/5202
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/rpc/rpc-lib/src/rpc-clnt.h b/rpc/rpc-lib/src/rpc-clnt.h
index bd4820605d8..f439d538761 100644
--- a/rpc/rpc-lib/src/rpc-clnt.h
+++ b/rpc/rpc-lib/src/rpc-clnt.h
@@ -145,6 +145,7 @@ struct rpc_clnt_connection {
 	struct timeval           last_received;
 	int32_t                  ping_started;
         char                    *name;
+	int32_t                  ping_timeout;
 };
 typedef struct rpc_clnt_connection rpc_clnt_connection_t;
 
@@ -186,7 +187,6 @@ typedef struct rpc_clnt {
         char                  disabled;
 } rpc_clnt_t;
 
-
 struct rpc_clnt *rpc_clnt_new (dict_t *options, glusterfs_ctx_t *ctx,
                                char *name, uint32_t reqpool_size);