glusterfs.git/xlators/features/quota/src/quotad-aggregator.c, branch v4.1.9

rpc: optimize fop program lookup

2017-11-06T16:46:33+00:00

Ensure that the fop program is the first in the program list
so that there's minimum amount of time spent to search the
program for the most frequently needed use case.

Change-Id: I45c3dcdbf39ec90ba39d914432d13a2ace00a5ee
BUG: 1509647
Signed-off-by: Milind Changire

quota: fix unused variable warnings/errors

2016-08-27T11:10:34+00:00

http://review.gluster.org/14085 fixes a/the "leak" - via the
generated rpc/xdr headers - of pragmas that mask these warnings.

However 14085 won't pass the smoke test until all the warnings are
fixed.

Change-Id: Ic5c1e20468d47ccb5243b8e99f946fd31eb737b8
BUG: 1369124
Signed-off-by: Kaleb S. KEITHLEY 
Reviewed-on: http://review.gluster.org/15250
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System 
Reviewed-by: Manikandan Selvaganesh 
Reviewed-by: Raghavendra G

quota: corrected minor spelling mistakes in quota src files

2016-07-18T12:01:22+00:00

Change-Id: I85420ca5f89ce9d576a81be22d8c2003f109b476
BUG: 1356032
Signed-off-by: mvignesh@redhat.com 
Reviewed-on: http://review.gluster.org/14917
Reviewed-by: Manikandan Selvaganesh 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Jeff Darcy

quotad: create sock listener only after graph init is complete

2015-07-09T12:33:37+00:00

If FOPs are received before completing graph initialization,
FOP path can crash while accessing uninitialized variables

This patch fixes issue by not creating listener until
graph initialization is complete and hence not receiving
FOP request

Change-Id: I4771e376410843dff44bfe819329a4632523d266
BUG: 1240254
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/11552
Tested-by: NetBSD Build System 
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra G

features/quota: port QUOTA messages to new logging framework

2015-06-15T04:29:01+00:00

Change-Id: I5e3df8860ea35bce14a802391be9b22ad64f1ad4
BUG: 1075611
Signed-off-by: Susant Palai 
Reviewed-on: http://review.gluster.org/7574
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System 
Reviewed-by: Raghavendra G 
Tested-by: Raghavendra G

features/quota: Fixing Logically dead code

2015-04-10T06:37:00+00:00

CID: 1134007
The code never reaches the condition check on retlen in
ret label, hence removing the dead code.

Change-Id: Ia0108b69489bb78a2561ff8da6e00685f472ae82
BUG: 789278
Signed-off-by: arao 
Reviewed-on: http://review.gluster.org/9644
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

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

features/quota : Introducing inode quota

2015-03-19T01:24:12+00:00

==========================================================================
                             Inode quota
==========================================================================
= Currently, the only way to retrieve the number of files/objects in a   =
= directory or volume is to do a crawl of the entire directory/volume.   =
= This is expensive and is not scalable.                                 =
=                                                                        =
= The proposed mechanism will provide an easier alternative to determine =
= the count of files/objects in a directory or volume.                   =
=                                                                        =
= The new mechanism proposes to store count of objects/files as part of  =
= an extended attribute of a directory. Each directory's extended        =
= attribute value will indicate the number of files/objects present      =
= in a tree with the directory being considered as the root of the tree. =
=                                                                        =
= The count value can be accessed by performing a getxattr().            =
= Cluster translators like afr, dht and stripe will perform aggregation  =
= of count values from various bricks when getxattr() happens on the key =
= associated with file/object count.                                     =

A new interface is introduced:
------------------------------
        limit-objects  : limit the number of inodes at directory level
        list-objects   : list the directories where the limit is set
        remove-objects : remove the limit from the directory

==========================================================================

CLI COMMAND:
gluster volume quota  limit-objects   []

*  is a hard-limit for number of objects limitation for path ""
  If hard-limit is exceeded, creation of file/directory is no longer
permitted.

*  is a soft-limit for number of objects creation for path ""
  If soft-limit is exceeded, a warning is issued for each creation.

CLI COMMAND:
gluster volume quota  remove-objects [path]

==========================================================================

CLI COMMAND:
gluster volume quota  list-objects [path] ...

Sample output:
------------------
  Path                   Hard-limit Soft-limit   Used  Available
Soft-limit exceeded?
Hard-limit exceeded?
  ------------------------------------------------------------------------
--------------------------------------
  /dir                      10       80%          10       0
Yes
        Yes

==========================================================================

[root@snapshot-28 dir]# ls
a  b  file11  file12  file13  file14  file15  file16  file17
[root@snapshot-28 dir]# touch a1
touch: cannot touch `a1': Disk quota exceeded
* Nine files are created in directory "dir" and directory is included in
* the
count too. Hence the limit "10" is reached and further file creation
fails

==========================================================================

Note: We have also done some re-factoring in cli for volume name
validation. New function cli_validate_volname is created

==========================================================================

Change-Id: I1823497de4f790a2a20ebb1770293472ea33ee2b
BUG: 1190108
Signed-off-by: Sachin Pandit 
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9769
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

quota: quotad.socket files should be created under /var/run/gluster

2015-03-03T12:51:39+00:00

Change-Id: I49502a4f7516c02f7e321c16eebd748545afde07
BUG: 1197587
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9778
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

quota/marker: Fix dict leaks

2014-09-09T10:12:15+00:00

Unref dicts in quota and marker functions before they return.

Change-Id: I772edc7b46657a70fb136e037576c65e9beeaca8
BUG: 1139327
Signed-off-by: Ravishankar N 
Reviewed-on: http://review.gluster.org/8655
Reviewed-by: Atin Mukherjee 
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra G 
Tested-by: Raghavendra G