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From Harsh J <ha...@cloudera.com>
Subject Re: rack topology data update
Date Thu, 13 Sep 2012 09:15:16 GMT
Hey Steve,

True about the decisions part, that still needs the ugly fixing of
re-replication.

I think I saw it on a JIRA by Patrick A. that was trying to change the
way we did this. But placement is also pluggable in 2.x right? Let me
find that JIRA (but yeah, am unsure if it was committed).

On Thu, Sep 13, 2012 at 2:40 PM, Steve Loughran <stevel@hortonworks.com> wrote:
>
>
> On 13 September 2012 09:03, Harsh J <harsh@cloudera.com> wrote:
>>
>>
>> This should be fixed in one of the 2.x releases, where we also refresh
>> the cached values.
>>
>
> Really? Which JIRA?
>
> I've been making changes to the topology logic so you can do some preflight
> checking and dump the topologies, but didn't think a clear and reload was in
> there. Some decisions on block placement strategy (flat vs hierarchical) are
> made early on, so going from flat to multi-switch is not something I'd
> recommend.



-- 
Harsh J

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