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* NFS-Ganesha : Locking global options fileMeghana Madhusudhan2015-05-061-9/+12
| | | | | | | | | | | | | | | | | | | | | Global option gluster features.ganesha enable writes into the global 'option' file. The snapshot feature also writes into the same file. To handle concurrent multiple transactions correctly, a new lock has to be introduced on this file. Every operation using this file needs to contest for the new lock type. Change-Id: Ia8a324d2a466717b39f2700599edd9f345b939a9 BUG: 1200254 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/10130 Reviewed-by: Avra Sengupta <asengupt@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: soumya k <skoduri@redhat.com> Tested-by: NetBSD Build System Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* Cache-invalidation : set to on/off depending on ganesha.enable valueMeghana Madhusudhan2015-05-051-1/+12
| | | | | | | | | | | | | | | | Multi-Head NFS-Ganesha servers need upcall (cache-invalidation) support to notify them in case of any changes to the files in the backend. Hence, upcall xlator option "features.cache-invalidation" needs to be enabled when ganesha.enable is set to 'on'. Similarly, this feature needs to be disabled when ganesha.enable is set to 'off' Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Change-Id: Ifdd1d50e48a2bd2a388f73c0b9e318c6092ac190 BUG: 1213752 Reviewed-on: http://review.gluster.org/10581 Reviewed-by: soumya k <skoduri@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* NFS-Ganesha: Handling CLI commands when NFS-Ganesha keys are setMeghana Madhusudhan2015-04-301-60/+188
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When ganesha.enable is set to on and features.ganesha is enabled, there are a few behaviour changes that should be seen in other volume operations. 1. ganesha.enable can be set to 'on' only when features.ganesha is set to 'enable' 2.When gluster vol is started, and if ganesha.enable key was set to 'on', it should automatically export the volume via NFS-Ganesha. 3.When ganesha.enable is set to 'on', and a volume is stopped, that volume should be unexported via NFS-Ganesha. 4. gluster vol reset <volname> If ganesha.enable was set to on, then unexport the volume via NFS-Ganesha. 5. gluster vol reset all If features.ganesha is set to enable, as part of reset all, set it to disable. This translates to teardown cluster. All the above problems are fixed by checking the global key and value, depending on the value, specific functions are called. And also, functions related to global commands are moved to cli-cmd-global.c Commit phase of features.ganesha enable/disable runs the ganesha-ha.sh setup/teardown respectively. Before the script begins, it is important that the NFS-Ganesha service starts on all the HA nodes. Having the start service commands in the commit phase could lead to problems. Moving the pre-requisite service start commands to the 'stage' phase. Change-Id: I5a256f94f8e1310ddcd5369f329b7168b2a24c47 BUG: 1200265 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/10283 Reviewed-by: jiffin tony Thottan <jthottan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* NFS-Ganesha : Fixing HA script invocation and othersMeghana Madhusudhan2015-04-131-4/+11
| | | | | | | | | | | | | | gluster features.ganesha disable failed invariably. And also, there were problems in unexporting volumes dynamically.Fixed the above problems. Change-Id: I29aa289dc8dc7b39fe0fd9d3098a02097ca8ca0c BUG: 1207629 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/10199 Reviewed-by: jiffin tony Thottan <jthottan@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: NetBSD Build System
* NFS-Ganesha: Start and stop NFS-Ganesha service in a platform independent wayMeghana Madhusudhan2015-03-311-11/+74
| | | | | | | | | | | | | | | Check for what binaries are installed at run time, pick appropriate command and perform the required action. The service managers supported are systemctl,service and invoke-rc.d. Change-Id: I8deef2bfe5a09da5b055fe6176a58452a882fa76 BUG: 1202316 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/9991 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* CLI : GLobal option for NFS-GaneshaMeghana Madhusudhan2015-03-181-2/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A new global CLI option has been introduced for NFS-Ganesha. gluster features.ganesha enable/disable. This option is persistent and shall be inherited by new volumes created after this option is set. gluster features.ganesha enable It carries out the following functions: 1. Disables gluster-nfs across the cluster 2. Starts NFS-Ganesha server on a subset of nodes and exports '/'. 3. Creates the HA cluster for NFS-Ganesha. 4. Writes the option into the global config file. gluster features.ganesha disable 1. Stops NFS-Ganesha server. 2. Tears down the HA cluster for NFS-Ganesha With this change the older volume set options with keys "nfs-ganesha.host" and "nfs-ganesha.enable" will no longer be supported. This commit has only has the CLI related changes. Another patch will be submitted to support this feature entirely. Change-Id: Ie4b66a16c23b33b795738654b9a68f8e2c34efe3 BUG: 1188184 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/9538 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* NFS-Ganesha: Volume set option for managing NFS-Ganesha exports.Meghana Madhusudhan2015-03-181-0/+365
A dummy translator has been introduced as a place holder for functions related to managing NFS-Ganesha exports. A volume set option is introduced to manage volume level exports. gluster vol set <volname> ganesha.enable ON/OFF 1. gluster volume set <volname> ganesha.enable ON It creates the export config file with a unique export ID. Sends a DBus signal to export this volume dynamically. 2. gluster vol set <volname> ganesha.enable OFF Unexports the specific volume. Deletes the specfic config file related to the volume. This change also removes the handling of the older keys "nfs-ganesha.enable" and "nfs-ganesha.host" Change-Id: I8d4a0b542326a6a0c8e4711600b106274d666587 BUG: 1188184 Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com> Reviewed-on: http://review.gluster.org/9585 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>