The multipath-tools package in Ubuntu doesn't have the libprioweightedpath.so and the libprioiet.so modules

[Rarylson Freitas]

In the multipath-tools upstream, there is a prioritizer called weightedpath.

See: http://git.opensvc.com/?p=multipath-tools/.git;a=blob;f=libmultipath/prioritizers/weightedpath.h;h=509f21565d06d8c10a0f0a79756195a5583125d8;hb=HEAD

This prioritizer exists in some distribuction specific pre-compiled packages too, like in Debian Wheezy.

See: https://packages.debian.org/wheezy/amd64/multipath-tools/filelist

However, this prioritizer doesn't exist in any Ubuntu version, as we can see in the following links:

- http://packages.ubuntu.com/trusty/amd64/multipath-tools/filelist
- http://packages.ubuntu.com/precise/amd64/multipath-tools/filelist

Since this module can be very useful, why don't the Ubuntu maintainers provide it? Is there any special reason?

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The Debian package also has the iet prioritizer (file /lib/multipath/libprioiet.so). This prioritizer may be used to solve common problems too.

This module doesn't exist in any Ubuntu package too.

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I created this bug report because someone suggest me in the question #245910:

I suggest you report a bug. If you feel something is missing then you flagging it up may get it added.

See: https://answers.launchpad.net/ubuntu/+source/multipath-tools/+question/245910

[Robie Basak (racb)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

As far as I can determine, the features you mention are new in 0.5.0-1, which was only uploaded to Debian on 9 March this year. This is after feature freeze for Trusty, so it is unlikely to be released in Ubuntu in Trusty, but I expect that it will make a future release.

It seems that the version available in Debian wheezy was by picking up git snapshots, which has not been the case in Ubuntu.

To determine this, I searched the sources for filenames matching *weight*. I see this in wheezy and sid, but not in Trusty. The version numbers tell the rest of the story.

I'm marking this bug Invalid, since it doesn't seem to me to be a bug that an older release doesn't have a newer feature. See https://wiki.ubuntu.com/StableReleaseUpdates and https://wiki.ubuntu.com/UbuntuBackports for Ubuntu policy around these issues.

However, you should see these features in a future release (post Trusty) after the newer upstream release is merged from Debian after Trusty's release. If you wish, you can file a "please update to latest release" bug, or convert this bug to such a bug, but since we're past feature freeze for Trusty, nothing is likely to happen until the U release.

$ rmadison -udebian -asource multipath-tools
 multipath-tools | 0.4.8+git0.761c66f-10 | squeeze | source
 multipath-tools | 0.4.9+git0.4dfdaf2b-7~deb7u2 | wheezy-updates | source
 multipath-tools | 0.4.9+git0.4dfdaf2b-7~deb7u2 | wheezy | source
 multipath-tools | 0.5.0-1 | jessie | source
 multipath-tools | 0.5.0-1 | sid | source

$ rmadison -uubuntu -asource multipath-tools
 multipath-tools | 0.4.8-14ubuntu4 | lucid | source
 multipath-tools | 0.4.8-14ubuntu4.10.04.2 | lucid-updates | source
 multipath-tools | 0.4.9-3ubuntu5 | precise | source
 multipath-tools | 0.4.9-3ubuntu5.1 | precise-updates | source
 multipath-tools | 0.4.9-3ubuntu6 | quantal | source
 multipath-tools | 0.4.9-3ubuntu7 | saucy | source
 multipath-tools | 0.4.9-3ubuntu7 | trusty | source