glusterfs.git/api/src/gfapi-messages.h, branch v4.1.3

gfapi : New APIs have been added to use lease feature in gluster

2018-01-26T12:33:42+00:00

Following APIs glfs_h_lease(), glfs_lease() added, so that gfapi applications
can set and get lease which enables more efficient client side caching.

Updates: #350
Change-Id: Iede85be9af1d4df969b890d0937ed0afa4ca6596
Signed-off-by: Poornima G 
Signed-off-by: Soumya Koduri 
Signed-off-by: Jiffin Tony Thottan

libgfapi: Add new api for supporting mandatory-locks

2018-01-22T09:54:02+00:00

The current API for byte-range locks [glfs_posix_lock()] doesn't
allow applications to specify whether it is advisory or mandatory
type locks. This particular change is to introduce an extended
byte-range lock API with an additional argument for including
the byte-range lock mode to be one among advisory(default) or
mandatory. Patch also includes a gfapi test case which make use
of this new api to acquire mandatory locks.

Ref: https://github.com/gluster/glusterfs-specs/blob/master/done/GlusterFS%203.8/Mandatory%20Locks.md

Change-Id: Ia09042c755d891895d96da857321abc4ce03e20c
Updates #393
Signed-off-by: Anoop C S

all: Simplify component message id's definition

2017-12-14T02:33:51+00:00

This patch creates a new way of defining message id's that is easier
and less error prone because it doesn't require so many manual changes
each time a new component is defined or a new message created.

Change-Id: I71ba8af9ac068f5add7e74f316a2478bc991c67b
Signed-off-by: Xavier Hernandez

gfapi/handleops: Introducing glfs_xreaddirplus_r() fop for handleops

2017-05-02T23:33:13+00:00

Its known that readdirplus operation fetches stat as well for each of the
dirents. But often applications may need extra information, like for eg.,
NFS-Ganesha which operates on handles needs handles for each of those
dirents returned. So this would require extra calls to the backend, in this
case LOOKUP (which is very expensive operation) resulting in very low
readdir performance.

To address that introducing this new API using which applications can
make request for any extra information to be returned as part of
readdirplus response.

Currently this new api returns stat and handles as demanded by application.
The synopsis of the API is noted in glfs.h.

@todo:
* Enhance test script using this new API

Below were the perf results on single brick volume with and without
these changes -

Dataset used -
10*100 directories and each directory containing 100 empty files.

I used NFS-Ganesha application to test these changes -
>for i in {1..5}; do systemctl restart nfs-ganesha; sleep 10; mount -t nfs -o vers=4 localhost:/brick_vol /mnt; cd /mnt; echo "ITERATION$i"; date; find . > tmp-nfs.log; date; cd /; umount /mnt; sleep 2; done;

Without these changes -
ITERATION1
Mon Mar 20 17:22:26 IST 2017
Mon Mar 20 17:23:18 IST 2017
ITERATION2
Mon Mar 20 17:23:39 IST 2017
Mon Mar 20 17:24:28 IST 2017
ITERATION3
Mon Mar 20 17:24:49 IST 2017
Mon Mar 20 17:25:36 IST 2017
ITERATION4
Mon Mar 20 17:30:57 IST 2017
Mon Mar 20 17:31:37 IST 2017
ITERATION5
Mon Mar 20 17:31:57 IST 2017
Mon Mar 20 17:32:40 IST 2017
[root@dhcp35-197 /]#

On an average ~46.2 sec

With these changes applied -
ITERATION1
Mon Mar 20 17:35:03 IST 2017
Mon Mar 20 17:35:15 IST 2017
ITERATION2
Mon Mar 20 17:35:36 IST 2017
Mon Mar 20 17:35:46 IST 2017
ITERATION3
Mon Mar 20 17:36:06 IST 2017
Mon Mar 20 17:36:17 IST 2017
ITERATION4
Mon Mar 20 17:41:38 IST 2017
Mon Mar 20 17:41:49 IST 2017
ITERATION5
Mon Mar 20 17:42:10 IST 2017
Mon Mar 20 17:42:20 IST 2017

On an average ~10.8 sec

Updates #174
BUG: 1442950
Change-Id: I0f74f74dc62085ca4c4a23c38e3edc84bd850876
Signed-off-by: Soumya Koduri 
Reviewed-on: https://review.gluster.org/15663
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Niels de Vos 
CentOS-regression: Gluster Build System

api: Fix incorrect strcmp() during fs initialisation

2017-04-18T20:32:49+00:00

Just chanced upon this while reading graph switch code in
libgfapi.

Change-Id: Ie62b410c22e6d0768a24187c5d587b6d3fc996bf
Signed-off-by: Krutika Dhananjay 
Reviewed-on: https://review.gluster.org/16319
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Amar Tumballi 
CentOS-regression: Gluster Build System 
Reviewed-by: Vijay Bellur

gfapi: add API to trigger events for debugging and troubleshooting

2017-01-19T18:44:22+00:00

Introduce glfs_sysrq() as a generic API for triggering debug and
troubleshoot events. This interface will be used by the feature to get
statedumps for applications using libgfapi.

The current events that can be requested through this API are:
 - 'h'elp: log a mesage with all supported events
 - 's'tatedump: trigger a statedump for the passed glfs_t

In future, this API can be used by a CLI to trigger statedumps from
storage servers. At the moment it is limited to take statedumps, but it
is extensible to set the log-level, clear caches, force reconnects and
much more.

BUG: 1169302
Change-Id: I18858359a3957870cea5139c79efe1365a15a992
Original-author: Poornima G 
Signed-off-by: Niels de Vos 
Reviewed-on: http://review.gluster.org/16414
Reviewed-by: Prashanth Pai 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Kaleb KEITHLEY

api: Fix a typo in gfapi logging message framework

2016-06-14T13:08:01+00:00

Change-Id: I8a44a37a73f0c92783aecac8187247db98957070
BUG: 1202274
Signed-off-by: Anoop C S 
Reviewed-on: http://review.gluster.org/14709
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Poornima G 
Reviewed-by: Shyamsundar Ranganathan

libglusterfs/gfapi: set appropriate errno for inode_link failures

2016-05-10T16:10:25+00:00

We do not seem to be setting errno appropriately in case
of inode_link failures. This errno may be used by any application
(for eg., nfs-ganesha) to determine the error encountered. This
patch addresses the same.

Change-Id: I674f747c73369d0597a9c463e6ea4c85b9091355
BUG: 1334621
Signed-off-by: Soumya Koduri 
Reviewed-on: http://review.gluster.org/14278
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
NetBSD-regression: NetBSD Build System 
Reviewed-by: jiffin tony Thottan 
Reviewed-by: Kaleb KEITHLEY 
CentOS-regression: Gluster Build System

libgfapi : port missing gf_log's to gf_msg

2015-08-31T09:45:27+00:00

Change-Id: I0c5320c09b4a5ff1e9df61a86ac7bd47c1bb1bbb
BUG: 1252807
Signed-off-by: Manikandan Selvaganesh 
Reviewed-on: http://review.gluster.org/11891
Tested-by: NetBSD Build System 
Reviewed-by: Raghavendra Talur 
Reviewed-by: jiffin tony Thottan 
Reviewed-by: Humble Devassy Chirammal 
Reviewed-by: Raghavendra G

build: Mac OS X build issues, header guard macros

2015-07-04T16:59:56+00:00

clang compiler errors

Change-Id: I0aaa9f4353afd34e0e49ccb579b630a768c6c22a
BUG: 1238788
Signed-off-by: Kaleb S. KEITHLEY 
Reviewed-on: http://review.gluster.org/11513
Reviewed-by: Shyamsundar Ranganathan 
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos