glusterfs.git/xlators/mgmt/glusterd/src/glusterd.c, branch v3.7.2

rebalance,store,glusterd/glusterd: porting to new logging framework.

2015-06-17T04:23:24+00:00

Backport of http://review.gluster.org/#/c/9877/

Change-Id: I231b79e3414e60fe67cde577dd585cce83c8bfad
BUG: 1217722
Signed-off-by: Nandaja Varma 
Reviewed-on: http://review.gluster.org/11193
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System 
Reviewed-by: Atin Mukherjee

glusterd: Stop tcp/ip listeners during glusterd exit

2015-06-16T10:33:56+00:00

Problem : Because of race between exit thread and rpc thread
causing the glusterd crash while glusterd exiting/stoping.

Fix : Stop tcp/ip socket listeners in cleanup_and_exit to
avoid new rpc events.

Backport of :
>Change-Id: Ie9280c8c9d7c350a176529375d861432f3de94ac
>BUG: 1209461
>Signed-off-by: anand 
>Reviewed-on: http://review.gluster.org/10197
>Reviewed-by: Atin Mukherjee 
>Tested-by: NetBSD Build System 
>Reviewed-by: Kaushal M 

Change-Id: Ibb3d3669e248af8c5284801d7f18c6ee26fe2ef3
BUG: 1230026
Reviewed-on: http://review.gluster.org/11154
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System 
Reviewed-by: Atin Mukherjee

glusterd/shared_storage: Provide a volume set option to create and mount the shared storage

2015-06-05T09:20:26+00:00

     Backport of http://review.gluster.org/#/c/10793/

Introducing a global volume set option(cluster.enable-shared-storage)
which helps create and set-up the shared storage meta volume.

gluster volume set all cluster.enable-shared-storage enable

On enabling this option, the system analyzes the number of peers
in the cluster, which are currently connected, and chooses three
such peers(including the node the command is issued from). From these
peers a volume(gluster_shared_storage) is created. Depending on the
number of peers available the volume is either a replica 3
volume(if there are 3 connected peers),  or a replica 2 volume(if there
are 2 connected peers). "/var/run/gluster/ss_brick" serves as the
brick path on each node for the shared storage volume. We also mount
the shared storage at "/var/run/gluster/shared_storage" on all the nodes
in the cluster as part of enabling this option. If there is only one node
in the cluster,  or only one node is up then the command will fail

Once the volume is created, and mounted the maintainance of the
volume like adding-bricks, removing bricks etc., is expected to
be the onus of the user.

On disabling the option, we provide the user a warning, and on
affirmation from the user we stop the shared storage volume, and unmount
it from all the nodes in the cluster.

gluster volume set all cluster.enable-shared-storage disable

Change-Id: Idd92d67b93f444244f99ede9f634ef18d2945dbc
BUG: 1228181
Signed-off-by: Avra Sengupta 
Reviewed-on: http://review.gluster.org/11086
Tested-by: NetBSD Build System 
Tested-by: Gluster Build System 
Reviewed-by: Rajesh Joseph 
Reviewed-by: Krishnan Parthasarathi

libglusterfs: Implementation of sync lock as recursive lock to avoid crash.

2015-04-30T11:47:46+00:00

Problem : In glusterd,we are using big lock which is implemented based on sync
task frame work for thread synchronization and rcu lock for data consistency.
sync task frame work swap the threads  if there is no worker poll threads
available,due to this rcu lock and rcu unlock was happening in different threads
(urcu-bp will not allow this),resulting into glusterd crash.

fix : To avoid releasing the sync lock(big lock) in between rcu critical
section,implemented sync lock as recursive lock.

More details:
link : http://www.spinics.net/lists/gluster-devel/msg14632.html

Change-Id: I2b56c1caf3f0470f219b1adcaf62cce29cdc6b88
BUG: 1216942
Signed-off-by: anand 
Reviewed-on: http://review.gluster.org/10285
Reviewed-by: Atin Mukherjee 
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System
Reviewed-by: Vijay Bellur 
(cherry picked from commit ada6b3a8800867934af57a57d5312f5a5d8374f0)
Reviewed-on: http://review.gluster.org/10432
Reviewed-by: Krishnan Parthasarathi 
Tested-by: Vijay Bellur

glusterd: Store ping-timeout in glusterd conf in memory

2015-04-14T05:20:28+00:00

As of now glusterd_conf_t's ping-timeout was of no use and hence statedump was
not reflecting correct ping-timeout value configured in glusterd.vol

Change-Id: I76ba7b721264565751538c7fcdcb801a28317581
BUG: 1210627
Signed-off-by: Atin Mukherjee 
Reviewed-on: http://review.gluster.org/10191
Tested-by: Gluster Build System 
Reviewed-by: Krishnan Parthasarathi 
Tested-by: Krishnan Parthasarathi

build: make contrib/uuid dependency optional

2015-04-10T11:39:52+00:00

On Linux systems we should use the libuuid from the distribution and not
bundle and statically link the contrib/uuid/ bits.

libglusterfs/src/compat-uuid.h has been introduced and should become an
abstraction layer for different UUID APIs. Non-Linux operating systems
should implement their compatibility layer there.

Once all operating systems have an implementation in compat-uuid.h, we
can remove contrib/uuid/ from the repository completely.

Change-Id: I345e5357644be2521685e00358bb8c83c4ea0577
BUG: 1206587
Signed-off-by: Niels de Vos 
Reviewed-on: http://review.gluster.org/10129
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

geo-rep: Copy geo-rep hook-script during source install

2015-04-02T10:06:58+00:00

The hook-script S56glusterd-geo-rep-create-post.sh was not
copying to glusterd working directory when geo-rep is
installed through source. Hence the geo-rep create fails
unless the script is manually copied. This patch addresses
the issue by copying the hook-script during make install.

Change-Id: I185a877ed720e8300f0e888ab481d0c8c23bf815
BUG: 1207201
Signed-off-by: Kotresh HR 
Reviewed-on: http://review.gluster.org/10051
Reviewed-by: Aravinda VK 
Reviewed-by: Niels de Vos 
Reviewed-by: Vijay Bellur 
Tested-by: Vijay Bellur

geo-rep: Add support for acls

2015-03-30T13:57:16+00:00

This patch adds support for ACLS. When it sees SETXATTR
in Changelog, it adds the file to data queue. rsync/tar+ssh
will take care of syncing ACLS. User set ACLS will be
synced to Slave.

This requires "system.posix_acl_access" to go through when
client-pid is equal GF_CLIENT_PID_GSYNCD in fuse layer.

New config interface is introduced, sync-acls
Which can be set using geo-rep config(Default is True)

gluster volume geo-replication  :: \
               config sync-acls false

Change-Id: I7eb3523fa72b8fed830efc98138891244e830d65
BUG: 1187021
Signed-off-by: Kotresh HR 
Reviewed-on: http://review.gluster.org/10001
Reviewed-by: Aravinda VK 
Tested-by: Gluster Build System 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar

glusterd: clean up global xaction_peer occurances

2015-03-26T07:12:32+00:00

With http://review.gluster.org/#/c/9972/ there is no more need to maintain
xaction_peers in glusterd_conf_t. This patch cleans up code for all the
occurances of xaction_peers.

Change-Id: I4fbf2df0fa9b8a8751029be36be7f76f6464cc76
BUG: 1204727
Signed-off-by: Atin Mukherjee 
Reviewed-on: http://review.gluster.org/9980
Tested-by: Gluster Build System 
Reviewed-by: Krishnan Parthasarathi 
Tested-by: Krishnan Parthasarathi