As Issue #1310 pointed out, for fops that
have interrupt handlers the fop handler
needs to pay attention to give the proper
FUSE response when it's interrupted.
This change extends the interrupt documentation
with guidelines regarding the FUSE response.
Also:
- improve wording
- add an 'Overview' section to explain the
code flow before going in to the technical
details
Change-Id: I852bfb717b1bde73f220878d6376429564413820
updates: #1374
Signed-off-by: Csaba Henk <csaba@redhat.com>
Rename disk space checking thread to comply with
common convention, adjust related docs as well.
Change-Id: I36d642cf09773a28abd95bbe337ce29134ad96a4
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Fixes: #1248
Problem:
While running markdown-link-checker it was
observed that there were a large number of
404 links present in the documentation present
in the form of markdown files in the project.
This was casued due to the following reasons:
1. Repos being removed.
2. Typo in markdown links.
3. Restructring of directoires.
Solution:
Fixing all the 404 links present in the project.
fixes: bz#1746810
Change-Id: I30de745f848fca2e9c92eb7493f74738f0890ed9
Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>
The BD xlator was removed some time ago. Remove it from the graph.
We can also remove the caps settings - only the BD xlator
was using it.
Lastly, remove the caps (which only BD was using) and the document
describing the translator.
Change-Id: Id0adcb2952f4832a5dc6301e726874522e07935d
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
There are a lot of fromatting error is markdown
files peresent under /doc directiory of the project.
Fixing formatting errors and sending a patch.
Fixes: bz#1718273
Change-Id: I08f938088bbaaafddf634f73616ea0dbfe7aedf3
Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>
This reverts commit b87c397091.
There seems to be some performance regression with the patch and hence recommended to have it reverted.
Updates: #325
Change-Id: Id85d6203173a44fad6cf51d39b3e96f37afcec09
The current implementation of iobuf_pool has two problems:
- prealloc of 12.5MB memory, this limits the scale factor of the gluster
processes due to RAM requirements
- lock contention, as the current implementation has one global
iobuf_pool lock. Credits for debugging and addressing the same goes to
Krutika Dhananjay <kdhananj@redhat.com>. Issue: #410
Hence changing the iobuf implementation to use per thread mem pool.
This may theoritically appear to cause perf dip as there is no preallocation.
But per thread mem pool will not have significant perf impact as the last
allocated memory is kept alive for subsequent allocs, for some time.
The worst case would be if iobufs requested are of random sizes each time.
The best case is, if we get iobuf request of the same size. From the perf
tests, this patch did not seem to cause any perf decrease.
Note that, with this patch, the rdma performance is going to degrade
drastically. In one of the previous patchsets we had fixes to not
degrade rdma perf, but rdma is not supported and also not tested [1].
Hence the decision was to not have code in rdma that is not tested
and not supported.
[1] https://lists.gluster.org/pipermail/gluster-users.old/2018-July/034400.html
Updates: #325
Change-Id: Ic2ef3bd498f9250dea25f25ba0c01fde19584b27
Signed-off-by: Poornima G <pgurusid@redhat.com>
String functions like sprintf/snprintf/vprintf etc terminates the string with a
null character. This makes meset redundant and also incurs some performance
penalty.
Also added a comment about using GF_MALLOC instead of GF_CALLOC for allocating
buffer for strings, targeted by such functions.
Fixes: bz#1193929
Change-Id: I4f40d4fd5342b70983936119606c6c9f352c303c
Signed-off-by: Susant Palai <spalai@redhat.com>
Keeping this in glusterfs Repo for glusterfs specific improvements.
There would be a link to this page, and some more similar pages from
docs.gluster.org
updates: bz#1193929
Change-Id: Ie98670cc32e62951f1b1880b1ae39f5cc2b45329
Signed-off-by: Amar Tumballi <amarts@redhat.com>
We add dummy interrupt handling for the FLUSH
fuse message. It can be enabled by the
"--fuse-flush-handle-interrupt" hidden command line
option, or "-ofuse-flush-handle-interrupt=yes"
mount option.
It serves no other than diagnostic & demonstational
purposes -- to exercise the interrupt handling framework
a bit and to give an usage example.
Documentation is also provided that showcases interrupt
handling via FLUSH.
Change-Id: I522f1e798501d06b74ac3592a5f73c1ab0590c60
updates: #465
Signed-off-by: Csaba Henk <csaba@redhat.com>
Also update the required documents and scripts to enable clang-format
Change-Id: I73aae6db06c2f732a1779d59a73bc05e28beafba
updates: bz#1564149
Signed-off-by: Amar Tumballi <amarts@redhat.com>
This helps to traverse the docs well as README.md is rendered
by default in github pages, and would help to provide better indexed
document for new users.
updates: bz#1193929
Change-Id: I4130dfd16aed924ecab17f96326cedb86892d6a6
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Detailing how the commit message should be is very important for imposing
some structure, and good practises. Also it helps new developers to do the
right things.
This is mostly copied from the OpenStack commit message reference, as it
was overlapping with most of the things we follow in GlusterFS. Made
minor changes to make it suitable for Gluster project.
Updates: bz#1193929
Change-Id: I4dcd7ff366edfc6c1727a287f32bcf7270c86b11
Signed-off-by: Amar Tumballi <amarts@redhat.com>
`doc/xlator-classification.md` talks about the reasoning and expectations
Reviewers are expected to check the 'category' of new
option / translator added in the codebase, and make sure the flag
is always properly set. It helps to keep the 'expectation' proper
on the codebase.
updates: #430
Change-Id: I2bfc9934a5f6eed77fcc3e20364046242decc82c
Signed-off-by: Amar Tumballi <amarts@redhat.com>
[sh]$ gcc --version
gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
Warnings were of the type below:
xlators/mgmt/glusterd/src/glusterd-store.c:3285:33:
warning: ‘/options’ directive output may be truncated writing 8 bytes into a region of size between 1 and 4096 [-Wformat-truncation=]
snprintf (path, len, "%s/options", conf->workdir);
^~~~~~~~
xlators/mgmt/glusterd/src/glusterd-store.c:1280:39:
warning: ‘/snaps/’ directive output may be truncated writing 7 bytes into a region of size between 1 and 4096 [-Wformat-truncation=]
snprintf (snap_fpath, len, "%s/snaps/%s/%s", priv->workdir,
^~~~~~~
* Also changed some places where there was issues with key size
* Made sure all the 'char buf[SOMESIZE] = {0,};' are changed to 'char buf[SOMESIZE] = "";`
- In the files I changed
* Also edited coding standard to reflect that.
updates: bz#1193929
Change-Id: I04c652624ac63199cea2077e46b3a5def37c3689
Signed-off-by: Amar Tumballi <amarts@redhat.com>
This is a recommendation for users, and reviewers can take a point from this.
Updates: bz#1193929
Change-Id: Idcd778e42a886fd79b549da4927149a07573a20b
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Keeping two copies of the files means, one would be out-of-date soon,
and users would always be confused about which one is the source of
truth.
Updates: bz#1193929
Change-Id: I568149732fdb9d282ccd583640eee9b9056963fd
Signed-off-by: Amar Tumballi <amarts@redhat.com>
The libgfapi-perl provides declarations and linkage for the Gluster
gfapi C library with FFI for many Perl mongers
In addition, gogfapi URI link is replaced with GitHub because Forge is
dead.
Change-Id: I773e78beb201b48ca3fde0dc72d04b64dc9697d6
Signed-off-by: Ji-Hyeon Gim <potatogim@potatogim.net>
Updates: #447
This new xlator does not allocate any resources on init(). This makes it
a good option to use for debugging xlator releated resources leaks on
fini().
By putting the sink xlator as single xlator in a .vol file, and loading
it through gfapi, we can investigate the resource leaks that are
happening through gfapi (and the Gluster core). By extending the .vol
file with additional xlators, it is possible to analyze resource leaks
of single xlators.
Change-Id: Idb5faa861b623dd5b2a988b181e669b0d52c2a0e
BUG: 1425623
Fixes: #176
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: https://review.gluster.org/16806
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
We don't actually support systemtap. And so it is confusing
to have --enable-systemtap configure option in configure.ac.
This patch removes the systemtap option and corresponding
references from other files which include INSTALL, spec.in,
docs etc.
Change-Id: I719c22ca36f41a2faca156f8e41daea44e64b65e
BUG: 1198849
Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-on: http://review.gluster.org/12565
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Previously glfs_h_lookupat won't follow the symlink, this patch
introduces new flag `follow` which will resolve the same. Applications
linking against the new library will need to use the new glfs_h_lookupat
API call.
In order to stay compatible with existing binaries that use the previous
glfs_h_lookupat() function, the old symbol needs to stay available.
Verification that there are two versions of glfs_h_lookupat:
$ objdump -T /usr/lib64/libgfapi.so.0 | grep -w glfs_h_lookupat
0000000000015070 g DF .text 000000000000021e GFAPI_3.7.4 glfs_h_lookupat
0000000000015290 g DF .text 0000000000000008 (GFAPI_3.4.2) glfs_h_lookupat
Testing with a binary (based on anonymous_fd_read_write.c from ./tests/)
that was linked against the old library:
$ objdump -T ./lookupat | grep -w glfs_h_lookupat
0000000000000000 DF *UND* 0000000000000000 GFAPI_3.4.2 glfs_h_lookupat
Enable debugging for 'ld.so' so that we can check that the GFAPI_3.4.2
version of the symbol gets loaded:
$ export LD_DEBUG_OUTPUT=lookupat.ld.log LD_DEBUG=all
$ ./lookupat
$ grep -w glfs_h_lookupat lookupat.ld.log.2543
2543: symbol=glfs_h_lookupat; lookup in file=./lookupat [0]
2543: symbol=glfs_h_lookupat; lookup in file=/lib64/libgfapi.so.0 [0]
2543: binding file ./lookupat [0] to /lib64/libgfapi.so.0 [0]: normal symbol `glfs_h_lookupat' [GFAPI_3.4.2]
Change-Id: I8bf9b1c19a0585f681bc1a7f84aad1ccd0f75f6a
BUG: 1252410
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/11883
Reviewed-by: soumya k <skoduri@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
As of now all the daemon services are initialized at glusterD init path. Since
socket file path of per node daemon demands the uuid of the node, MY_UUID macro
is invoked as part of the initialization.
The above flow breaks the usecases where a gluster image is built following a
template could be Dockerfile, Vagrantfile or any kind of virtualization
environment. This means bringing instances of this image would have same UUIDs
for the node resulting in peer probe failure.
Solution is to lazily initialize the services on demand.
Change-Id: If7caa533026c83e98c7c7678bded67085d0bbc1e
BUG: 1238135
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: http://review.gluster.org/11488
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Gaurav Kumar Garg <ggarg@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
The developer oriented information is scattered in source
and its very difficult to identify which are those.
With this patch subdirs are created under developer-guide
which will be the parent for developer notes. The changes
suggested in http://review.gluster.org/#/c/8827/ are also
included in this patch.
Change-Id: I4c8510d52c49f4066225f72cac8f97f087d6c70c
BUG: 1206539
Signed-off-by: Humble Devassy Chirammal <hchiramm@redhat.com>
Reviewed-on: http://review.gluster.org/10038
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
