Atin Mukherjee
2016-Mar-15 06:53 UTC
[Gluster-users] Improving subdir export for NFS-Ganesha
On 03/15/2016 11:48 AM, Jiffin Tony Thottan wrote:> Hi all, > > The subdir export is one of key features for NFS server. NFS-ganesha > have already supports subdir export, > but it has lot of limitations when it is intregrated with gluster. > > Current Implementation : > Following steps are required for a subdir export > * export volume using ganesha.enable option > * edit the export configuration file by adding subdir options > * do refresh-config in that node using ganesha-ha.sh > * limitation : multiple directories cannot be exported at a time via > script. > If user to need to do that(it is possible), all the > steps should be done in manually > which includes creating export conf file, use latest > export id, include it in ganesha conf etc. > And also here it become mandatory to export root > before exporting subdir. > > Suggested approach : > > * Introduce new volume set command "ganesha.subdir" which will handle > above mentioned issue cleanly > for example, gluster volume set <volname> ganesha.subdir > <path1,path2,path3 ...> > if u want to unexport path2, use the same command with mentioning path2 > gluster volume set <volname> ganesha.subdir <path1,path3 ...>.(Is > different option required ?)How do you handle a case where you have to unexport all the paths?> The root of the volume should be export only using ganesha.enable > options. > This require a lot of additions in glusterd code base and minor > changes in snapshot functionality.Could you detail out what all changes will be required in glusterd codebase when volume set ganesha.subdir <list of path> is executed? Based on that we can only take a call whether its feasible to take this in 3.7.x or move it to 3.8.> > Can above mentioned improvement targeted for 3.7.x release (3.7.10 or > 3.7.11) or should I need to move it for 3.8 release ? > Please provide your valuable feedback on the same. > > Please Note : It is not related to subdir export for fuse mount. > > Regards, > Jiffin > >
Jiffin Tony Thottan
2016-Mar-15 13:09 UTC
[Gluster-users] Improving subdir export for NFS-Ganesha
On 15/03/16 12:23, Atin Mukherjee wrote:> > On 03/15/2016 11:48 AM, Jiffin Tony Thottan wrote: >> Hi all, >> >> The subdir export is one of key features for NFS server. NFS-ganesha >> have already supports subdir export, >> but it has lot of limitations when it is intregrated with gluster. >> >> Current Implementation : >> Following steps are required for a subdir export >> * export volume using ganesha.enable option >> * edit the export configuration file by adding subdir options >> * do refresh-config in that node using ganesha-ha.sh >> * limitation : multiple directories cannot be exported at a time via >> script. >> If user to need to do that(it is possible), all the >> steps should be done in manually >> which includes creating export conf file, use latest >> export id, include it in ganesha conf etc. >> And also here it become mandatory to export root >> before exporting subdir. >> >> Suggested approach : >> >> * Introduce new volume set command "ganesha.subdir" which will handle >> above mentioned issue cleanly >> for example, gluster volume set <volname> ganesha.subdir >> <path1,path2,path3 ...> >> if u want to unexport path2, use the same command with mentioning path2 >> gluster volume set <volname> ganesha.subdir <path1,path3 ...>.(Is >> different option required ?) > How do you handle a case where you have to unexport all the paths? >> The root of the volume should be export only using ganesha.enable >> options. >> This require a lot of additions in glusterd code base and minor >> changes in snapshot functionality. > Could you detail out what all changes will be required in glusterd > codebase when volume set ganesha.subdir <list of path> is executed? > Based on that we can only take a call whether its feasible to take this > in 3.7.x or move it to 3.8.This is just a rough estimation : 1.) glusterd/cli for introducing new option 2.) need to modify functions like ganesha_manage_export() to accommodate new option 3.) changes related to ganesha scripts 4.) minor modification to snapshot functionality(glusterd_copy_nfs_ganesha_file) for ganesha approximately I expect around 100-150 lines of code to be added -- Jiffin>> Can above mentioned improvement targeted for 3.7.x release (3.7.10 or >> 3.7.11) or should I need to move it for 3.8 release ? >> Please provide your valuable feedback on the same. >> >> Please Note : It is not related to subdir export for fuse mount. >> >> Regards, >> Jiffin >> >>