support for de-commissioning a node using 'remove-brick'

to achieve this, we now create volume-file with
'decommissioned-nodes' option in distribute volume, then just
perform the rebalance set of operations (with 'force' flag set).

now onwards, the 'remove-brick' (with 'start' option) operation tries
to migrate data from removed bricks to existing bricks.

'remove-brick' also supports similar options as of replace-brick.

* (no options) -> works as 'force', will have the current behavior
         of remove-brick, ie., no data-migration, volume changes.

* start  (starts remove-brick with data-migration/draining process,
          which takes care of migrating data and once complete, will
          commit the changes to volume file)
* pause  (stop data migration, but keep the volume file intact with
          extra options whatever is set)
* abort  (stop data-migration, and fall back to old configuration)
* commit (if volume is stopped, commits the changes to volumefile)
* force  (stops the data-migration and commits the changes to
          volume file)

Change-Id: I3952bcfbe604a0952e68b6accace7014d5e401d3
BUG: 1952
Reviewed-on: http://review.gluster.com/118
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/rpc/xdr/src/cli1-xdr.c b/rpc/xdr/src/cli1-xdr.c
index 250efc9357..9030d3067e 100644
--- a/rpc/xdr/src/cli1-xdr.c
+++ b/rpc/xdr/src/cli1-xdr.c
@@ -38,6 +38,17 @@ xdr_gf_cli_defrag_type (XDR *xdrs, gf_cli_defrag_type *objp)
 }
 
 bool_t
+xdr_gf_defrag_status_t (XDR *xdrs, gf_defrag_status_t *objp)
+{
+	register int32_t *buf;
+        buf = NULL;
+
+	 if (!xdr_enum (xdrs, (enum_t *) objp))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
 xdr_gf1_cluster_type (XDR *xdrs, gf1_cluster_type *objp)
 {
 	register int32_t *buf;
@@ -60,6 +71,17 @@ xdr_gf1_cli_replace_op (XDR *xdrs, gf1_cli_replace_op *objp)
 }
 
 bool_t
+xdr_gf1_op_commands (XDR *xdrs, gf1_op_commands *objp)
+{
+	register int32_t *buf;
+        buf = NULL;
+
+	 if (!xdr_enum (xdrs, (enum_t *) objp))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
 xdr_gf_quota_type (XDR *xdrs, gf_quota_type *objp)
 {
 	register int32_t *buf;