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+Kevin

> On 10 Sep 2015, at 12:49, Robert Collins <robertc at robertcollins.net> wrote:
> 
>> On 11 September 2015 at 07:23, Robert Collins <robertc at robertcollins.net> wrote:
>> Note that master is pinned:
>> 
>> commit aca1a74909d7a2841cd9805b7f57c867a1f74b73
>> Author: Tushar Gohad <tushar.gohad at intel.com>
>> Date:   Tue Aug 18 07:55:18 2015 +0000
>> 
>>    Restrict PyECLib version to 1.0.7
>> 
>>    v1.0.9 rev of PyECLib replaces Jerasure with a native EC
>>    implementation (liberasurecode_rs_vand) as the default
>>    EC scheme.  Going forward, Jerasure will not be bundled
>>    with PyPI version of PyECLib as it used to be, until
>>    v1.0.7.
>> 
>>    This is an interim change to Global/Swift requirements
>>    until we get v1.0.9 PyECLib released and included in
>>    global-requirements and ready patches that change Swift
>>    default ec_type (for doc, config samples and unit tests)
>>    from "jerasure_rs_vand" to "liberasurecode_rs_vand."
>> 
>>    Without this change, Swift unit tests will break at gate
>>    as soon as PyECLib v1.0.9 lands on PyPI
>> 
>>    * Swift is the only user of PyECLib at the moment
>> 
>>    Change-Id: I52180355b95679cbcddd497bbdd9be8e7167a3c7
>> 
>> 
>> But it appears a matching change was not done to j/k - and the pin
>> hasn't been removed from master.
> 
> I'm going to propose another manual review rule I think: we should not
> permit lower releases to use higher versions of libraries -
> approximately noone tests downgrades of their thing [and while it only
> matters for packages with weird installs / state management things,
> its a glaring hole in our reliability story].
> 
> -Rob
> 
> -- 
> Robert Collins <rbtcollins at hp.com>
> Distinguished Technologist
> HP Converged Cloud
> 
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