glusterd: fix segfault on volume status detail

If for some reason glusterd_get_brick_root() fails,
it frees the gf_strdup'ed *mount_point in its own error path,
and returns -1.

Unfortunately it already had assigned that pointer value
to the output argument, the caller function
glusterd_add_brick_detail() sees a non-NULL pointer,
and free() again: segfault.

Could be fixed with a one-liner (*mount_point = NULL)
in the error path, but I think glusterd_get_brick_root()
should only assign to the output argument once all checks passed,
so I use a local temporary pointer, which increases the patch a bit.

Change-Id: I3f3035f01e80a5e9bdf2da895e4cf7baa3dfbd2f
BUG: 919352
Signed-off-by: Lars Ellenberg <lars@linbit.com>
Reviewed-on: http://review.gluster.org/4646
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
tests:Adding remove-brick test to volume.t

Change-Id: Ibef0c151ef6518136cd5f4c39ec5e89f06ff4133
BUG: 764966
Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-on: http://review.gluster.org/4650
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
glusterd: Fixed volume-sync in synctask codepath.

Change-Id: I2911d3ac80825310f84c5ba6bd7890e65e1ee219
BUG: 865700
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/4624
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Add autogen.sh dependency checks and nicer output.

Change-Id: I5c740d81765559fae022d0ab9dfe34988e46612e
BUG: 919898
Signed-off-by: Justin Clift <jclift@redhat.com>
Reviewed-on: http://review.gluster.org/4651
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
features/quota: regression tests on general functionality of quota

Change-Id: Ie8fd9d21f3a8644ce4d6f6cb887c101451cec10c
BUG: 919998
Signed-off-by: Varun Shastry <vshastry@redhat.com>
Reviewed-on: http://review.gluster.org/4657
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
glusterd: Mark vol as deleted by renaming voldir before cleaning up the store

PROBLEM:

During 'volume delete', when glusterd fails to erase all information
about a volume from the backend store (for instance because rmdir()
failed on non-empty directories), not only does volume delete fail on
that node, but also subsequent attempts to restart glusterd fail
because the volume store is left in an inconsistent state.

FIX:

Rename the volume directory path to a new location
<working-dir>/trash/<volume-id>.deleted, and then go on to clean up its
contents. The volume is considered deleted once rename() succeeds,
irrespective of whether the cleanup succeeds or not.

Change-Id: Iaf18e1684f0b101808bd5e1cd53a5d55790541a8
BUG: 889630
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/4639
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
cluster/afr: Preserve mtime in self-heal

Problem:
Data self-heal may choose sink iatt to set mtimes.
This happens because after syncing of data is done
self-heal does one more xattrops/fstat to determine
sources sinks to set the inode-ctx. Since this is done
after data syncing and erase of xattrs, old source and
old sink are now sources, but the mtimes of them differ.
Old code just takes the first source from the list and
update mtimes, which could be sink before the self-heal
started.

Fix:
Set mtime from 'sources before syncing'.

Change-Id: Id769e1b99aa4f041eaee775f64cbf2c57b799723
BUG: 918437
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/4658
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Add missing pthread.h include to logging.h

Change-Id: I986b3e978616510ed92903e192222be513297284
BUG: 920369
Signed-off-by: Justin Clift <jclift@redhat.com>
Reviewed-on: http://review.gluster.org/4653
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Storage/posix: Don't log at ERROR level for failed getxattr.

Problem:
ENOATTR returned by
getxattr -n <NotAnExistingAttribute> <file>
was being logged at ERROR level.

Solution:
Moved logging to DEBUG level.

Change-Id: I982a577a4c231faa958ea71abdb272f8d5ffd70c
BUG: 918052
Signed-off-by: Raghavendra Talur <rtalur@redhat.com>
Reviewed-on: http://review.gluster.org/4628
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Fix improperly quoted PKG_CHECK_MODULES parameters.

Change-Id: I11765fd1a25058b84fc32249ea745abefbade3f9
BUG: 920372
Signed-off-by: Justin Clift <jclift@redhat.com>
Reviewed-on: http://review.gluster.org/4652
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Renamed TMP_MAX to GF_TMP_MAX to avoid namespace clash on OSX.

(Just moving things along. I don't mean to step on any toes, but wasn't
sure if I had confused things with my previous review comment.)

Change-Id: I095abf751ef952ba6e225305ec5c2afc5e62ee95
BUG: 919953
Signed-off-by: Justin Clift <jclift@redhat.com>
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/4654
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
geo-rep: retire old style ssh setup

Users are still using geo-rep with the old, deprecated, insecure, unsupported
ssh setup. Not their fault -- the implementation of the new method had the
following charasteristics:
- old method is possible, but with default settings it's not working
- it can be made operational by fiddling with "remote-gsyncd" tunable
- with default setting, an unhelpful, actually misleading error message is
  produced
- the UI gave no hint to the changes in the ssh setup

http://review.gluster.org/4392 tried to fix these; what it accomplished was
unrestricted support to the bad practice (by making the default old setup
operational).

From this on:
- we disable the old method by reserving the "remote-gsyncd" tunable
- if the old method is attempted, give a hint what to do

Change-Id: Icade94725d8d8d2d4c89cab992d4226351637b86
BUG: 895656
Signed-off-by: Csaba Henk <csaba@redhat.com>
Reviewed-on: http://review.gluster.org/4602
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
posix-acl: disable permission checks for fd based ops

Signed-off-by: shishir gowda <sgowda@redhat.com>
Change-Id: I9d49537c2c7b51d5598b80627d61f060aaec8549
BUG: 921437
Reviewed-on: http://review.gluster.org/4671
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
iobuf: Added a function iobref_clear

Original-author: Venky Shankar <vshankar@redhat.com>

Change-Id: Ibf861db6c1b084b798d210962344487a1919aad2
Signed-off-by: Prashanth Pai <nullpai@gmail.com>
features/compress: Compression/DeCompression translator

Original-author : Venky Shankar <vshankar@redhat.com>

* When a writev call occurs, the client compresses the data before
  sending it to server. On the server, compressed data is decompressed.
  Similarly, when a readv call occurs, the server compresses the data
  before sending it to client. On the client, the compressed data is
  decompressed. Thus the amount of data sent over the wire is minimized.

* Compression/Decompression is done using Zlib library.

* During normal operation, this is the format of data sent over wire :
  <compressed-data> + trailer(8)
  The trailer contains the CRC32 checksum and length of original
  uncompressed data. This is used for validation.

* However in debug mode, gzip header is added and compressed data is
  dumped onto disk as a gzip file. This is to be used is testing only.

HOW TO USE
----------
Setting compression xlator options from CLI

Ex : gluster volume set <vol_name> compress on
     gluster volume set <vol_name> compress.buffer-size 32768
     gluster volume set <vol_name> compress.debug on

Change-Id: Ib7a66b6f1f70fe002b7c513588cdf75c69370805
Signed-off-by: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Prashanth Pai <nullpai@gmail.com>