glusterfs.git/libglusterfs, branch v3.3.0qa13

Second round of warning suppression.

2011-09-29T18:52:30+00:00

Used a #pragma to kill ~170 in rpcgen code.  Added GF_UNUSED to deal with
a few more from macros elsewhere.  The remainder are function return values
(mostly context and dict calls) that really should be checked.  Those would
be harder to fix without real understanding of the code where they occur,
so they remain as reminders.

(Patchset 2: deal with older gcc that doesn't handle #pragma GCC diagnostic)

(Patchset 3: fix include paths in generated files)

(Patchset 4: keep up with trunk, squash 9 new warnings)

(Patchset 5: six more, all in AFR)

Change-Id: I29760c8c81be4d7e6489312c5d0e92cc24814b7b
BUG: 2550
Reviewed-on: http://review.gluster.com/378
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

performance/io-cache,quick-read: increase cache-size limit

2011-09-29T16:39:50+00:00

Does the following:
1. Increases cache-size limit from 6GB to 32GB.
2. Prevents 'volume set'from failing when cache-size is set over the
limit. Just issues a warning.
3. Performs check on cache-size by comparing with total system memory
available in init () and reconfigure () methods.

Change-Id: I7dd4d8c53051b89a293696abf1ee8dc237e39a20
BUG: 3495
Reviewed-on: http://review.gluster.com/409
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur

libglusterfs: wipe other variabes in loc

2011-09-29T11:14:20+00:00

Change-Id: I0553bb7f64d69f5684c3d21f3809da4e9e3529c1
BUG: 3557
Reviewed-on: http://review.gluster.com/515
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cli : new volume statedump command

2011-09-27T13:45:10+00:00

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  [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,
        ..dump

Change-Id: I01c0e1a8aad490da818e086d89f292bd2ed06fd4
BUG: 1964
Reviewed-on: http://review.gluster.com/321
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

statedump: dump important details of oldgraph also

2011-09-23T08:22:56+00:00

* with this, it helps to find out most of the leaks in the process

Change-Id: I70b476e4d63d74843d6664cfe407164f2b79b781
BUG: 3567
Reviewed-on: http://review.gluster.com/491
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

libglusterfs: Adding missing event strings for events.

2011-09-23T08:19:38+00:00

Change-Id: Idf55abfa77712d32b27798fedcfddb65599b562b
Reviewed-on: http://review.gluster.com/493
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

glusterd: Implemented cmd to trigger self-heal on a replicate volume.

2011-09-22T16:43:25+00:00

This cmd is used in the context of proactive self-heal for replicated
volumes. User invokes the following cmd when (s)he suspects that self-heal
needs to be done on a particular volume,
        gluster volume heal .

Change-Id: I3954353b53488c28b70406e261808239b44997f3
BUG: 3602
Reviewed-on: http://review.gluster.com/454
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

statedump: add more memory accounting related stats

2011-09-22T11:33:40+00:00

* iobuf: add variable to keep count of total number of allocations
* iobuf: include 'purged' and 'filled' arenas also in dump
* mempool: more details added (with a name to tell why mem-pool
  is created)
* memory-accounting: print number of allocs in each type

this would give us much better understanding of the memory
allocation pattern

Change-Id: I117ac0c1da943a4cc91543a01963ba7940db2b5f
BUG: 3567
Reviewed-on: http://review.gluster.com/376
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

libglusterfs: run: fix closing of redirection fd in child

2011-09-19T05:51:54+00:00

When run was doing a program invocation like "echo foo > foof",
the file descriptor to foof was closed before stdout could be
reopened to it.

To fix this, we change the order of actions: first do redirections,
then do the fd cleanup. This also simplifies code (as there are less
fds which are exempt of the cleanup).

Change-Id: I5f74e41f2999e59916a40c8a89d7fb730d808c27
BUG: 2562
Reported-by: Rajesh Amaravathi 
Reviewed-on: http://review.gluster.com/428
Tested-by: Gluster Build System 
Tested-by: Rajesh Amaravathi 
Reviewed-by: Rajesh Amaravathi 
Reviewed-by: Amar Tumballi

Proactive self heal process implementation

2011-09-14T12:36:24+00:00

Change-Id: I96db0d94566ceabf1649f890318363f738c06553
BUG: 2458
Reviewed-on: http://review.gluster.com/403
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur