glusterfs.git/xlators/lib/src/libxlator.c, branch v3.7.0beta2

Avoid conflict between contrib/uuid and system uuid

2015-04-04T17:48:35+00:00

glusterfs relies on Linux uuid implementation, which
API is incompatible with most other systems's uuid. As
a result, libglusterfs has to embed contrib/uuid,
which is the Linux implementation, on non Linux systems.
This implementation is incompatible with systtem's
built in, but the symbols have the same names.

Usually this is not a problem because when we link
with -lglusterfs, libc's symbols are trumped. However
there is a problem when a program not linked with
-lglusterfs will dlopen() glusterfs component. In
such a case, libc's uuid implementation is already
loaded in the calling program, and it will be used
instead of libglusterfs's implementation, causing
crashes.

A possible workaround is to use pre-load libglusterfs
in the calling program (using LD_PRELOAD on NetBSD for
instance), but such a mechanism is not portable, nor
is it flexible. A much better approach is to rename
libglusterfs's uuid_* functions to gf_uuid_* to avoid
any possible conflict. This is what this change attempts.

BUG: 1206587
Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a
Signed-off-by: Emmanuel Dreyfus 
Reviewed-on: http://review.gluster.org/10017
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos

xlators/lib: Handle NULL 'name' for marker xattrs

2015-03-27T07:21:33+00:00

Change-Id: I18f00b7e92f483673250821c457d1e8be2eef081
BUG: 1200372
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/10015
Tested-by: Gluster Build System 
Reviewed-by: Aravinda VK 
Reviewed-by: Vijay Bellur

libxlator: Change marker xattr handling interface

2015-03-25T18:10:40+00:00

- Changed the implementation of marker xattr handling to take just a
  function which populates important data that is different from
  default 'gauge' values and subvolumes where the call needs to be
  wound.
- Removed duplicate code I found while reading the code and moved it to
  cluster_marker_unwind. Removed unused structure members.
- Changed dht/afr/stripe implementations to follow the new implementation
- Implemented marker xattr handling for ec.

Change-Id: Ib0c3626fe31eb7c8aae841eabb694945bf23abd4
BUG: 1200372
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/9892
Tested-by: Gluster Build System 
Reviewed-by: Xavier Hernandez 
Reviewed-by: Shyamsundar Ranganathan 
Reviewed-by: Ravishankar N 
Reviewed-by: Vijay Bellur

libxlator: Make sure marker_xattr is valid

2015-03-09T10:15:06+00:00

Problem:
marker_xattr is allocated only when the op_ret is 0. If the final response is
a failure, then the marker time is dict_set with key as NULL. this will be
changed to ref: by dict_set, so the value won't appear on the
marker-key when the getxattr_cbk is in dht. So dht unwinds with failure EINVAL.

Fix:
Always populate marker_xattr. Fixed dict mem-leak as well.

Change-Id: I1752f277a8852c47b0a2ccce9fd72ee88456ac02
BUG: 1199406
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/9817
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra G 
Tested-by: Raghavendra G

libxlator: fix memleak in cluster_markerxtime_cbk and cluster_markeruuid_cbk

2014-02-04T19:29:27+00:00

Change-Id: Ide3574bf9f661b077f707990d47821feda18b1a3
BUG: 841617
Reviewed-on: http://review.gluster.org/6850
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

glusterd/geo-rep: more glusterd and cli fixes for geo-rep.

2013-12-12T08:16:25+00:00

    -> handle option validation cases in reset case.
    -> Creating valid conf path when glusterd restarts.
    -> Reading the gsyncd worker thread status and displaying it.
    -> Displaying status-detail per worker.
    -> Fetch checkpoint info in geo-rep status.
    -> use-tarssh value validation added.

misc: misc geo-rep fixes based on cluster, logrotate etc..
    -> cluster/dht: fix 'stime' getxattr getting overwritten.
    -> cluster/afr: return max of 'stime' values in subvol.
    -> geo-rep-logrotate: Sending SIGHUP to geo-rep auxiliary.
    -> cluster/dht: fix convoluted logic while aggregating.
    -> cluster/*: fix 'stime' min/max fetch logic.

Change-Id: I811acea0bbd6194797a3e55d89295d1ea021ac85
BUG: 1036552
Signed-off-by: Ajeet Jha 
Reviewed-on: http://review.gluster.org/6405
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Anand Avati

libxlator: implement pluggable aggregation policies

2013-07-15T08:23:53+00:00

The API is described in libxlator.h.

Behavior remains the same for this commit; this
is a preparatory step for per-translator customization
of aggregation.

Change-Id: I5d42923af59b2fd78e1ff59c12763875b57c5190
BUG: 847839
Original Author: Csaba Henk 
Signed-off-by: Avra Sengupta 
Reviewed-on: http://review.gluster.org/4903
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Vijay Bellur

cluster/*: get logic to calculate min() of the 'stime' xattr

2013-07-15T04:06:42+00:00

* in both distribute and replicate (ignoring stripe for now),
  add logic to calculate the min() of stime values.

* What is a 'stime' ? Why is this required:
  -  stime means 'slave xtime', mainly used to keep track of slave
  node's sync status when distributed geo-replication is used.
  Logic of calculating 'min()' for this stime is very important as
  in case of crashes/reboots/shutdown, we will have to 'restart'
  with crawling from stime time value from the mount point, which
  gives the 'min()' of all the bricks, which means, we don't miss
  syncing any files in the above cases.

Change-Id: I2be8d434326572be9d4986db665570a6181db1ee
BUG: 847839
Original Author: Amar Tumballi 
Signed-off-by: Avra Sengupta 
Reviewed-on: http://review.gluster.org/4893
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

All: License message change

2012-09-13T20:19:37+00:00

License message changed for server-side, dual license GPLV2 and LGPLv3+.

Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09
BUG: 852318
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3940
Tested-by: Gluster Build System 
Reviewed-by: Kaleb KEITHLEY 
Reviewed-by: Anand Avati

All: License message change

2012-08-28T10:45:06+00:00

The license message is changed to
  Copyright (c) 2008-2012 Red Hat, Inc. 
  This file is part of GlusterFS.

  This file is licensed to you under your choice of the GNU Lesser
  General Public License, version 3 or any later version (LGPLv3 or
  later), or the GNU General Public License, version 2 (GPLv2), in all
  cases as published by the Free Software Foundation.

Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4
BUG: 852318
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3858
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur