glusterfs.git/xlators/mgmt/glusterd/src/glusterd-geo-rep.c, branch v3.6.0beta2

geo-rep/glusterd: API to check active geo-rep session for the volume

2014-09-09T03:08:08+00:00

Requirement:
Snapshot needs an API to fail the CLI if any geo-rep session is active
for that volume.

Solution:
A function "gd_vol_is_geo_rep_active" is provided to check if any
geo-rep session is active for that volume. An in memory dict called
'gsync_running_slaves' is maintained in 'volinfo' structure to keep
track of active geo-rep session for the volume. The key
'slavenode::slavevol' with value 'running' is added whenever geo-rep
is started/resumed into the dict and the same is removed if
stopped/paused. So the 'count' in dict is used to decide whether the
geo-rep is active or not for that volume.

Also added "this->name" in gf_log in routines which this patch is
touched.

BUG: 1138952
Change-Id: Ib13aeb509a56edf510651b77e20bf3cc43a3e763
Signed-off-by: Kotresh HR 
Reviewed-on: http://review.gluster.org/8459
Reviewed-by: Krishnan Parthasarathi 
Tested-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.org/8645
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cli: Xml output for geo-replication status command

2014-08-28T16:52:25+00:00

This patch adds xml output for geo-replication status
and status detail command.
sample:
--------------------------------------------------------------
  
    
      master
      
        
        :2a301d66-b9d2-44b4-b827-d680d67123eb:ssh://XXXXXXXXXX::slave
          
            localhost.localdomain
            2a301d66-b9d2-44b4-b827-d680d67123eb
            /root/master_b1
            ssh://XXXXXXXXXXX::slave
            faulty
            N/A
            N/A
          
        
      
    
  
-------------------------------------------------------------

Change-Id: Ia19dbe751c3ab1ec7cb8923cdd6c8b99c374072f
BUG: 1133464
Signed-off-by: ndarshan 
Reviewed-on: http://review.gluster.org/8089
Tested-by: Gluster Build System 
Reviewed-by: Kaushal M 
Signed-off-by: ndarshan 
Reviewed-on: http://review.gluster.org/8532
Reviewed-by: Sachin Pandit 
Reviewed-by: Vijay Bellur

glusterd/geo-rep: Create the conf file path correctly

2014-06-12T12:48:54+00:00

In case of mount brocker, the conf file path needs to
be correctly created, and then fetch the status file

Change-Id: Iaa1b04ee46f10961a7056e834170d68282c36efa
BUG: 1104649
Signed-off-by: Avra Sengupta 
Reviewed-on: http://review.gluster.org/7977
Tested-by: Gluster Build System 
Reviewed-by: Kotresh HR 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar

glusterd/geo-rep: Fix the resource leaks.

2014-06-12T11:25:08+00:00

Change-Id: Ic741250999880bdf9e1226cd3eefa791fb66a888
BUG: 789278
Signed-off-by: Poornima 
Reviewed-on: http://review.gluster.org/6905
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

geo-rep/glusterd: Fix glusterd crash during geo-rep config reset.

2014-06-12T07:24:13+00:00

Problem:
When "\!" (i.e., reset) is used in geo-rep config,
glusterd crashes with NULL pointer dereference of 'op_value' in
glusterd_gsync_op_already_set.

Solution:
glusterd_gsync_op_already_set should be called only for geo-rep
set option. So bypass glusterd_gsync_op_already_set for reset.

Change-Id: I9d8ef242abf02011139d76a72564f66d68cc8585
BUG: 1107984
Signed-off-by: Kotresh H R 
Reviewed-on: http://review.gluster.org/8032
Reviewed-by: Avra Sengupta 
Tested-by: Gluster Build System 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar

gsyncd / geo-rep: FSH recommended log locations

2014-06-10T16:55:55+00:00

Upgrading "working_dir" on the fly is a bit unclean yet
(though it works) as currently config upgrade does not
support "old" values to be expanded by using configuration
variables.

Change-Id: I44ed65c281f2e0ce3b6b467addc5c1c88ac674e7
BUG: 1077516
Signed-off-by: Venky Shankar 
Signed-off-by: Kotresh H R 
Signed-off-by: Aravinda VK 
Signed-off-by: Ajeet Jha 
Reviewed-on: http://review.gluster.org/7375
Tested-by: Gluster Build System

feature/geo-rep: Fix to retain pause state of gsyncd on restart.

2014-06-06T05:58:26+00:00

A new gsyncd options '--pause-on-start' is introduced. When node
reboots, if the status is paused, gsyncd is started with this
option. After gsyncd spawns worker and agent, worker will send 
SIGSTOP to negative pid of monitor to enter pause mode.

Change-Id: I5aad82c9a9fc8c243f384940b77d25e26e520d6d
BUG: 1101410
Signed-off-by: Kotresh H R 
Reviewed-on: http://review.gluster.org/7885
Reviewed-by: Aravinda VK 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar

glusterd/geo-rep: Allow gverify.sh and S56glusterd-geo-rep-create-post.sh

2014-05-14T17:24:25+00:00

to operate for non-root privileged slave volume

Mounting the slave-volume on local node, to perform disk checks
in order to allow gverify.sh to operate for non-root privileged
slave volume

Allowing the hook script S56glusterd-geo-rep-create-post.sh
to operate for non-root privileged slave volume

Modified peer_add_secret_pub.in to accept username as argument
and add the pem keys to the users's_home_dir/.ssh/authorized_keys

Wrote set_geo_rep_pem_keys.sh which accepts username as argument
and copies the pem keys from the user's home directory to
$GLUSTERD_WORKING_DIR/geo-replication/ and then copies the keys
to other nodes in the cluster and add them to the respective
authorized keys. The script takes as argument the user name and
assumes that the user will be present in all the nodes in the
cluster. It is not needed for root.

To summarize:
For a privileged slave user, execute the following on master node as super user:
gluster system:: execute gsec_create
gluster volume geo-replication  [root@]:: create push_pem

For a non-privileged slave user execute the following on master node as super user:
gluster system:: execute gsec_create
gluster volume geo-replication  @:: create push_pem
then on the slave node execute the following as super user:
/usr/local/libexec/glusterfs/set_geo_rep_pem_keys.sh 

BUG: 1077452
Change-Id: I88020968aa5b13a2c2ab86b1d6661b60071f6f5e
Signed-off-by: Avra Sengupta 
Reviewed-on: http://review.gluster.org/7744
Tested-by: Gluster Build System 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar

gsyncd / geo-rep: Partial support for Non-root geo-replication.

2014-05-14T17:24:01+00:00

This patch enables geo-replication to be run as an unprivileged
user. As of now, this is just the partial support, but is very
close to achieve full functionality.

Current limitation
* Geo-replication executed Gluster CLI commands on the slave
  via SSH. On a non-root setup, Gluster CLI would run as an
  unprivileged user, failing to execute the command. As a
  workaround (for testing), setuid(2) Gluster CLI executable
  or use the glusterd option to accept commands by unprivileged
  CLI process. The nature of cli commands are "system::"
  commands (for key management) and remote volume info fetching.

Remote volume info fetching has been modified to use --remote-host
gluster cli option rather than ssh and remote cli execution.

Change-Id: Ica89e2ba9b7f48fd6e1c876c477d7822dc693617
BUG: 1077452
Signed-off-by: Venky Shankar 
Reviewed-on: http://review.gluster.org/7658
Tested-by: Gluster Build System

geo-rep/glusterd: Pause and Resume feature for geo-replication

2014-05-14T06:10:10+00:00

        This patch introduces pause and resume cli command
        for geo-replication.

Signed-off-by: Kotresh H R 

Change-Id: I4f5e58e9175fe85077d56088473252391fb57de7
BUG: 1093602
Signed-off-by: Kotresh H R 
Reviewed-on: http://review.gluster.org/7643
Tested-by: Gluster Build System 
Reviewed-by: Atin Mukherjee 
Reviewed-by: Avra Sengupta 
Reviewed-by: Venky Shankar 
Tested-by: Venky Shankar