cli : new volume statedump command

Changes:
        1. Add a new 'volume statedump' command, that performs statedumps of
        all the bricks in the volume and saves them in a specified location.
        2. Add new server option 'server.statedump-path'.
        3. Remove multiple function definitions in glusterd.h

Statedump Information:

The 'volume statedump' command performs statedumps on all the bricks in
a given volume. The syntax of the command is,
        gluster volume statedump <VOLNAME> [type]......

Types include,
        * all
        * mem
        * iobuf
        * callpool
        * priv
        * fd
        * inode
Defaults to 'all' when no type is specified.

The statedump files are created by default in /tmp directory of the
server on which the bricks are present.
This path can be changed by setting the 'server.statedump-path' option.

The statedump files will be named as,
        <brick-name>.<pid of brick process>.dump

Change-Id: I01c0e1a8aad490da818e086d89f292bd2ed06fd4
BUG: 1964
Reviewed-on: http://review.gluster.com/321
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amar@gluster.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/rpc/xdr/src/cli1-xdr.x b/rpc/xdr/src/cli1-xdr.x
index 9a1f77c0e..5ff7aa3e9 100644
--- a/rpc/xdr/src/cli1-xdr.x
+++ b/rpc/xdr/src/cli1-xdr.x
@@ -466,4 +466,17 @@ struct gf1_cli_heal_vol_rsp {
        string  volname<>;
        string op_errstr<>;
        opaque  dict<>;
-}  ;
+};
+struct gf1_cli_statedump_vol_req {
+        string  volname<>;
+        string  options<>;
+        int     option_cnt;
+};
+
+struct gf1_cli_statedump_vol_rsp {
+        int     op_ret;
+        int     op_errno;
+        string  volname<>;
+        string  op_errstr<>;
+        opaque  dict<>;
+};