Dan Hecht has posted comments on this change.

Change subject: Remove AMD Opteron Rev E workaround from atomicops
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Patch Set 1:

> Does Impala just shutdown if you try starting it on Opeteron Rev E
 > today ?

In practice, yes (because we execute SSSE3 instructions).  It's a little 
indirect because some EC2 instances mask SSSE3 CPUID even though the physical 
CPU is capable, and people want to be able to run Impala on those instances, so 
we only print a warning about SSSE3 missing, but then try anyway (even though, 
as you know, this isn't the best practice from a VM usage standpoint).

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Gerrit-MessageType: comment
Gerrit-Change-Id: I3639dcf86c14778967c0079b8dbc222a4516cf05
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Dan Hecht <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Henry Robinson <[email protected]>
Gerrit-Reviewer: Michael Ho <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-HasComments: No

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