glusterfs.git/doc, branch v3.11.0rc1

doc: Added initial version of 3.11.0 release-notes

2017-05-08T18:15:00+00:00

This is just a skeleton, each feature further needs to provide
additional content as noted.

Further list of bugs fixed needs to be added to the list.

Change-Id: Id909cd4559c8d828eb9a77a0b4f27b7b59dfca4a
Signed-off-by: Shyam 
Reviewed-on: https://review.gluster.org/17207
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System

cluster/dht: Document detailing transactions in dht

2017-04-27T11:31:57+00:00

Change-Id: If69d67ce5dffe966fbc1e4ad834ca110e1e0b745
Signed-off-by: Raghavendra G 
Updates: #191
Reviewed-on: https://review.gluster.org/16876
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System

debug/sink: add xlator to aid in resource leak debugging

2017-04-25T23:10:38+00:00

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 
Reviewed-on: https://review.gluster.org/16806
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Smoke: Gluster Build System 
Reviewed-by: Shyamsundar Ranganathan

glusterd: Add client details to get-state output

2017-04-13T03:43:08+00:00

This commit optionally adds client details corresponding to the
locally running bricks to the get-state output. Since getting
the client details involves sending RPC requests to the respective
local bricks, this is a relatively more costly operation. These
client details would be added to the get-state output only if the
get-state command is invoked with the 'detail' option.

This commit therefore also changes the get-state CLI usage. The
modified usage is as follows:

 # gluster get-state [] [[odir ] \
[file ]] [detail]

Change-Id: I42cd4ef160f9e96d55a08a10d32c8ba44e4cd3d8
BUG: 1431183
Signed-off-by: Samikshan Bairagya 
Reviewed-on: https://review.gluster.org/17003
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Atin Mukherjee

doc: Added documentation about ec implementation

2017-03-03T05:13:20+00:00

A new document explaining how ec encoding/decoding is implemented
has been added to the developer guide.

Change-Id: I344493477bf42b935ed75f7cf0574d54dc1b9509
Signed-off-by: Xavier Hernandez 
Reviewed-on: https://review.gluster.org/15637
Smoke: Gluster Build System 
Reviewed-by: Ashish Pandey 
Reviewed-by: Pranith Kumar Karampuri 
Tested-by: Pranith Kumar Karampuri 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System

glusterd: add a cli command to trigger a statedump on a client

2017-01-24T00:13:15+00:00

With this, we will be able to trigger statedumps on remote Gluster
clients, mainly targetted for applications using libgfapi.

Design:
SIGUSR signal is the most comman way of taking a statedump in Gluster.
But it cannot be used for libgfapi based processes, as the process
loading the library might have already consumed SIGUSR signal. Hence
going by the command way.

One has to issue a Gluster command to initiate a statedump on the
libgfapi based client. The command takes hostname and PID as an
argument. All the glusterds in the cluster, check if they are connected
to the specified hostname, and send an RPC request to all the connected
clients from that hostname (via the mgmt connection).

URL: http://review.gluster.org/16357
Change-Id: Icbe4d2f026b32a2c7d5535e1bfb2cdaaff042e91
BUG: 1169302
Signed-off-by: Poornima G 
[ndevos: minor fixes and split patch in smaller pieces]
Reviewed-on: https://review.gluster.org/9228
Reviewed-by: Niels de Vos 
Tested-by: Niels de Vos 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Kaleb KEITHLEY 
CentOS-regression: Gluster Build System 
Reviewed-by: Samikshan Bairagya

inode: Add per xlator ref count for inode

2017-01-18T09:29:45+00:00

Debugging inode ref leaks is very difficult as there is no info
except for the ref count on the inode. Hence this patch is first step
towards debugging inode ref leaks. With this patch, in the statedump
we get additional info that tells the ref count taken by each xlator
on the inode.

Change-Id: I7802f7e7b13c04eb4d41fdf52d5469fd2c2a185a
BUG: 1325531
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/13736
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Pranith Kumar Karampuri 
Smoke: Gluster Build System

Revert "doc: fix gluster man page"

2016-12-16T04:46:19+00:00

This reverts commit c6fdc2f819b265e018d858232293407835fe2c6c.

Initially I thought gluster --xml taking into the shell prompt is not a
correct behavior, however if we execute any commands from that prompt we
get xml output which is the original intention. This patch reverts the
change and put back --xml option for gluster in man page.

Change-Id: If77d0c0bf27f8cfc799973003c860d9bd8cd6407
BUG: 1360670
Signed-off-by: Atin Mukherjee 
Reviewed-on: http://review.gluster.org/16157
CentOS-regression: Gluster Build System 
Reviewed-by: MOHIT AGRAWAL 
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System

doc: fix gluster man page

2016-12-15T18:26:51+00:00

gluster --xml will take into the interactive prompt which is not an
intended message here.

Change-Id: Iea5b094a1b1b429d211008a3c7459b703c1a0a12
BUG: 1360670
Signed-off-by: Atin Mukherjee 
Reviewed-on: http://review.gluster.org/16142
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Smoke: Gluster Build System 
Reviewed-by: Vijay Bellur

glusterd/cli: cli to get local state representation from glusterd

2016-08-26T15:23:37+00:00

Currently there is no existing CLI that can be used to get the
local state representation of the cluster as maintained in glusterd
in a readable as well as parseable format.

The CLI added has the following usage:

 # gluster get-state [daemon] [odir ] [file ]

This would dump data points that reflect the local state
representation of the cluster as maintained in glusterd (no other
daemons are supported as of now) to a file inside the specified
output directory. The default output directory and filename is
/var/run/gluster and glusterd_state_ respectively. The
option for specifying the daemon name leaves room to add support for
other daemons in the future. Following are the data points captured
as of now to represent the state from the local glusterd pov:

 * Peer:
    - Primary hostname
    - uuid
    - state
    - connection status
    - List of hostnames

 * Volumes:
    - name, id, transport type, status
    - counts: bricks, snap, subvol, stripe, arbiter, disperse,
 redundancy
    - snapd status
    - quorum status
    - tiering related information
    - rebalance status
    - replace bricks status
    - snapshots

 * Bricks:
    - Path, hostname (for all bricks these info will be shown)
    - port, rdma port, status, mount options, filesystem type and
signed in status for bricks running locally.

 * Services:
    - name, online status for initialised services

 * Others:
    - Base port, last allocated port
    - op-version
    - MYUUID

Change-Id: I4a45cc5407ab92d8afdbbd2098ece851f7e3d618
BUG: 1353156
Signed-off-by: Samikshan Bairagya 
Reviewed-on: http://review.gluster.org/14873
Reviewed-by: Avra Sengupta 
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Atin Mukherjee