Hi David,

On 20/03/2014 03:40, David Zafman wrote:> 
> My understanding is that are going to be using rados_mon_command() to create 
> pools according to Tracker #7586: deprecate rados_pool_create.  What I found 
> when building a test case for EC is that after using the mon_command to 
> create the pool I need to use wait_for_latest_osdmap() in order to wait for 
> the change to propagate.  The replicated pool test case using pool_create() 
> doesn’t need to wait_for_latest_osdmap().
> 
> Should we be deprecating librados calls in favor of the very generic 
> mon_command() interface?  

> I would suggest that we add the appropriate librados features to manipulate 
> erasure coded pools.

What do you have in mind ? There are osd erasure-code-profile, osd crush rule 
create-erasure and the additional arguments to osd pool create can be used with 
rados_mon_command (or mon_command with the suggested implicit 
wait_for_latest_osdmap ). Anything else ?

https://github.com/ceph/ceph/blob/master/doc/dev/erasure-coded-pool.rst

Cheers

> 
> David Zafman
> Senior Developer
> http://www.inktank.com
> 
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-- 
Loïc Dachary, Artisan Logiciel Libre

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  • mon_command David Zafman
    • Re: mon_command Loic Dachary

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