glusterfs.git/xlators/features/sdfs, branch v7dev

features/sdfs: disable by default

2019-01-29T13:54:22+00:00

With the feature enabled, some of the performance testing results,
specially those which create millions of small files, got approximately
4x regression compared to version before enabling this.

On master without this patch:  765 creates/sec
On master with this patch   : 3380 creates/sec

Also there seems to be regression caused by this in 'ls -l' workload.

On master without this patch:  3030 files/sec
On master with this patch   : 16610 files/sec

This is a feature added to handle multiple clients parallely operating
(specially those which race for file creates with same name) on a single
namespace/directory. Considering that is < 3% of Gluster's usecase right
now, it makes sense to disable the feature by default, so we don't
penalize the default users who doesn't bother about this usecase.
Also note that the client side translators, specially, distribute,
replicate and disperse already handle the issue upto 99.5% of the cases
without SDFS, so it makes sense to keep the feature disabled by default.

Credits: Shyamsunder  for running the tests and
getting the numbers.

Change-Id: Iec49ce1d82e621e9db25eb633fcb1d932e74f4fc
Updates: bz#1670031
Signed-off-by: Amar Tumballi

xlator: make 'xlator_api' mandatory

2018-12-13T09:11:50+00:00

* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing

NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.

fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi

libglusterfs: Move devel headers under glusterfs directory

2018-12-05T21:47:04+00:00

libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.

Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation <> in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs

This change although big, is just moving around the headers and
making it correct when including these headers from other sources.

This helps us correctly include libglusterfs includes without
namespace conflicts.

Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR

Land part 2 of clang-format changes

2018-09-12T12:22:45+00:00

Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu

Land clang-format changes

2018-09-12T11:52:48+00:00

Change-Id: I6f5d8140a06f3c1b2d196849299f8d483028d33b

features/sdfs: Minor improvements

2018-08-21T13:34:12+00:00

Addresses:

CID 1389688: Prevent op_errno from being -ve in sdfs_rename()
CID 1389286: Check for retval from loc_copy() to avoid logically dead
code

and

Initializes op_errno to ENOMEM in sdfs_link()

Change-Id: I12e17a98faa5887da94a33ba9ca775e8e0fef359
updates: bz#789278
Signed-off-by: Vijay Bellur

sdfs: Fix missing NULL option list tremination

2018-07-25T20:47:43+00:00

Option list for volume_options in sdfs was not NULL
terminated. This resulted in a crash when running in
lcov based builds.

This is rectified by this patch.

fixes: bz#1608566

Change-Id: I5d8730f1ae963ed6adf21d970e4921c5d5d92f62
Signed-off-by: ShyamsundarR

sdfs: enable by default

2018-05-24T05:52:35+00:00

also provide an option for pass-through to enable/disable xlator

fixes: #421
Change-Id: Ie30a91ad09620db62ab07b797e23123fd1200d1f
Signed-off-by: Amar Tumballi

features/sdfs: implement readdirp

2018-05-24T05:27:52+00:00

Since readdirp acts as a batched lookup for all dentries it reads, it
has to synchronize with any entry operation within the directory being
read.

Change-Id: I923a6ebd21856dbaa5fa5db4a26a29b7b29b3159
Signed-off-by: Raghavendra G 
fixes: #421

build: add --without-server option

2018-02-19T17:38:55+00:00

With Gluster 4.0 we will not provide the server components for EL6 and
older. At one point Gluster 4.x will get GlusterD2, which requires
Golang tools in the distribution. EL6 does not contain these at the
moment.

With this change, it is possible to `./configure --without-server` which
prevents building glusterd and the xlators for the bricks. Building RPMs
can pass `--without server` and the glusterfs-server sub-package will
not be created.

Change-Id: I97f5ccf9f2c76e60d9af83915fc59fae57ad6d25
BUG: 1074947
Signed-off-by: Niels de Vos