Re: [Tracker] the story on NFS

[Aleksander Morgado <aleksander lanedo com>]

On 11/11/13 03:20, Brian J. Murrell wrote:
> I'm assuming that tracker uses [i|d]notify (either directly or
> indirectly) to know when files need re-indexing (new or changed).  Of
> course [i|d]notify doesn't work on NFS.
>
> So what's tracker's story when being pointed at an NFS mounted
> directory?  How does it know to re-index new and changed files?
>
> As for watching files, does tracker use [i|d]notify directly or a
> library for doing that?

Tracker uses GLib/GIO's GFileMonitor support to monitor files, which is
just a wrapper on top of several different monitoring systems, including
inotify, FAM, and others.

For the specific case of NFS mounts, GLib/GIO will try to use FAM if
available (since GLib 2.35.7 [1]), as FAM works over NFS. Otherwise it
will fallback to inotify, which won't work anyway. But note that this
will only be the case for $HOME NFS mounts [2].


[1]
https://mail.gnome.org/archives/ftp-release-list/2013-February/msg00056.html
[2] https://bugzilla.gnome.org/show_bug.cgi?id=592211

-- 
Aleksander