New release: configshell.fb11

[Andy Grover]

Hi all,

RH QE also reported the tab-completion issue[1] so I went ahead and took 
a stab. There's gotta be a less-verbose fix but it seems to resolve the 
issue.

Regards -- Andy

Github:
https://github.com/agrover/targetcli-fb
https://github.com/agrover/rtslib-fb
https://github.com/agrover/configshell-fb

tarballs:
https://fedorahosted.org/released/targetcli-fb/

configshell-1.1.fb11:

Andy Grover <agrover(a)redhat.com&gt; (2):
       Re-enable hack for tab-completion with nothing under the cursor
       update version to 1.1.11

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1048110

[Christophe Vu-Brugier]

Hi Andy,

On Mon, 06 Jan 2014 12:42:54 -0800, Andy Grover wrote :
>  RH QE also reported the tab-completion issue[1] so I went ahead and
> took 
>  a stab. There's gotta be a less-verbose fix but it seems to resolve the 
>  issue. 
Thank you for fixing this issue !

May I ask you what are your plans for targetcli in 2014? Maybe some new
features? I was thinking about a "top" command to show some target
metrics in real time (for instance, read and write throughput per
backstore).

Best regards,

-- 
Christophe Vu-Brugier

[Andy Grover]

On 01/07/2014 12:25 AM, Christophe Vu-Brugier wrote:
>  May I ask you what are your plans for targetcli in 2014? Maybe some
> new
>  features? I was thinking about a "top" command to show some target
>  metrics in real time (for instance, read and write throughput per
>  backstore). 
As you may know, in RHEL 6 to 7 we're switching from tgtd to 
LIO/targetcli. LIO is still missing iSNS, >256 LUN support, and 
userspace-backed backstores, so that's going to drive my efforts until 
everything's covered.

The bulk of the work will likely be outside of targetcli, either in the 
kernel or in your target-isns project. I feel like the targetcli/rtslib 
code base is in pretty good shape right now. The only code issues on my 
list are:

* targetcli error return values (would be nice to fix)
* Add fcntl-based locking around changing configfs, so no chance of 
multiple clients trashing configfs state (one person reported this, 
would like to hear more if this is an issue, b/c it will be a fair 
amount of work)

So outside of those I don't have any hot issues for targetcli and rtslib 
in 2014, but bug reports and feature requests are always welcome, 
especially with patches :-)

For the "top" command, were you thinking it'd be part of targetcli, or a 
separate thing?

Regards -- Andy

[Christophe Vu-Brugier]

Hi Andy,

On Tue, 07 Jan 2014 10:22:18 -0800, Andy Grover wrote :
>  As you may know, in RHEL 6 to 7 we're switching from tgtd to 
>  LIO/targetcli. LIO is still missing iSNS, >256 LUN support, and 
>  userspace-backed backstores, so that's going to drive my efforts
>  until everything's covered.
>  
>  The bulk of the work will likely be outside of targetcli, either in
>  the kernel or in your target-isns project. 
OK. On my side, I intend to improve target-isns since it has some
limitations. For instance, it assumes that a target contains a single
TPG. I will also write a manpage and start making releases so that
people can download "known to work" source tarballs instead of
cloning a git repository.


>  For the "top" command, were you thinking it'd be part
> of targetcli,
>  or a separate thing? 
Yes. I got interested in "urwid" which is used in targetcli and thought
it could be used to make something similar to `iotop`. It's just an
idea right now, but I will try to implement something in 2014 :)

Best regards,

-- 
Christophe Vu-Brugier

[Tregaron Bayly]

On Tue, 2014-01-07 at 19:52 +0100, Christophe Vu-Brugier wrote:
>  > For the "top" command, were you thinking it'd be
> part of targetcli,
>  > or a separate thing?
>  
>  Yes. I got interested in "urwid" which is used in targetcli and thought
>  it could be used to make something similar to `iotop`. It's just an
>  idea right now, but I will try to implement something in 2014 :) 
Here's a top utility I put together in perl for Bluehost along these
lines.  Of course it's crafted specifically for our environment so yymv.

https://github.com/bluehost/santop

Its features include filtering by pv and grouping by either lv or
initiator.  We use it to try to identify which export might be causing
disk utilization trouble on the SAN.

Best,

Tregaron

[Christophe Vu-Brugier]

Dear Tregaron Bayly,

On Tue, 14 Jan 2014 12:03:53 -0700, Tregaron Bayly wrote :
>  Here's a top utility I put together in perl for Bluehost along
> these
>  lines.  Of course it's crafted specifically for our environment so
>  yymv.
>  
>  https://github.com/bluehost/santop
>  
>  Its features include filtering by pv and grouping by either lv or
>  initiator.  We use it to try to identify which export might be causing
>  disk utilization trouble on the SAN. 
Excellent ! Thank you for sharing `santop`.
I tried it on a small configuration with LVM volumes exported as iSCSI
LUNs and it works well.

I will take inspiration from your script when I will try to implement a
`top` command for targetcli.

Best regards,

-- 
Christophe Vu-Brugier