RHQ/Cassandra architecture

Thomas Segismont tsegismo at redhat.com
Wed Mar 13 09:19:39 UTC 2013


If it's about functionality then let's call it 'metric-storage', 
'mstorage' or anything like that. RDB will still be the 'main' storage 
(in number of structures, not necessarily in volume of data).

Thomas

Le 12/03/2013 14:48, Alan Santos a écrit :
> Agreed as long as you refer to the functionality vs. the implementation.
>
> e.g. rhq storage compact vs. rhq cassandra compact
>
>
>
> On Mar 12, 2013, at 9:38 AM, John Mazzitelli <mazz at redhat.com> wrote:
>
>>> $ rhq.sh row-cache --enabled --table twenty_four_hour_metrics
>> ...
>>> $ rhq compact
>>
>> One thing is that for these commands related specifically to cassandra, we should make it clear that that is what the command is acting on. Because if I see:
>>
>> rhq compact
>>
>> most users are gonna be like "what is that?" I think anything specific for server or agent or cassandra should have that as its first argument.
>>
>> rhq cassandra compact
>> rhq cassandra row-cache --enabled --table ....
>>
>> rhq server start (starts just the server)
>>
>> rhq agent stop (stops just the agent)
>>
>> Anytime you DON'T specify "server" or "agent" or "cassandra", means operate on all of them, if they were installed:
>>
>> rhq start (start all three)
>> rhq stop (stop all three)
>>
>> As for the console thing:
>>
>> rhq console (doesn't make sense - should not start all three in console mode)
>>
>> rhq cassandra console (start only cassandra, put it in console)
>> rhq server console (start only server in console)
>> rhq agent console (start only agent in console - with prompt)
>>
>> [side note: we shouldn't use "cassandra" literally, I think something not specific to the product name - perhaps "nosql" or some other non-product name referring to the backend non-RBDMS datastore]
>> _______________________________________________
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>> rhq-devel at lists.fedorahosted.org
>> https://lists.fedorahosted.org/mailman/listinfo/rhq-devel
>
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