[GE users] two cluster with the same reporting

sergio diaz sdiaz at cesga.es
Fri Nov 28 08:41:19 GMT 2008


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Thank very much Jana.

I'm using 6.1 but in a few days we are going to migrate to 6.2. Can I do 
this with 6.1, can't I? And when the cluster are migrated, we will have 
to reinstall the both dbwriter?

Regards,
Sergio

jana escribió:
> Hi Sergio,
>
> I am assuming you are using 6.2, aren't you? Just reinstall the 
> reporting  and enter both of the databases parameters. After you enter 
> the first parameters you will be asked:
>
>  Do you want to add another cluster? (y/n) [n] >>
>
> Editing the config.xml directly  would not work, since also the 
> password has to be generated.
>
> To your other part of a question, if you are referring to 
> cross-cluster queries yes you onbly have to use fully qualified names 
> if you want to combine output from the tables from 2 different 
> databases (database schemas). Generally, you will just want to run the 
> existing queries on a specified cluster.
>
> Regards,
>
> Jana Olivova
>
> sergio diaz wrote:
>> Hi all,
>>
>> I want install other dbwriter in other cluster using the same reporting 
>> and also the same webconsole.
>> If I create other database for the new cluster, the webconsole won't see 
>> this database because the reporting was set with the other database. 
>> Could I add to the file /gridware/sge/default/arco/reporting/config.xml 
>> two configuration of database?
>>
>> I.E. I have the following configuration and we could add the same only 
>> changed <database name="arco" host="machine.arco" port="3306" 
>> schema="arco"> for <database name="arco1" host="machine.arco" 
>> port="3306" schema="arco1">
>>
>> <configuration>
>>   <!--
>>     Configure the database connection to be used by the application
>>   -->
>>   <database name="arco" host="machine.arco" port="3306" schema="arco">
>>      <driver type="mysql">
>>         <javaClass>com.mysql.jdbc.Driver</javaClass>
>>      </driver>
>>      <user name="arco_read" passwd="XXXXXXX" maxConnections="10"/>
>>   </database>
>>             <applUser>default</applUser>
>>   <storage>
>>     <root>/var/spool/arco</root>
>>     <queries>queries</queries>
>>     <results>results</results>
>>   </storage>
>> </configuration>
>>
>>
>> If I read the following paragraph in the web page of arco, I guess that 
>> it isn't necessary and only If I want do a query using the two 
>> databases, I have to do for example "select arco.host, arco1.host from 
>> arco, arco1.sge_job;"
>> Would be correct this suppose?
>>
>>   
>>> If you configure MySQL multiple databases using just one pair of users 
>>> (arco_write, arco_read) and grant the privileges as described in step 
>>> 7 of How to Configure the ARCo Database on MySQL 
>>> <http://wikis.sun.com/display/GridEngine/Installing+ARCo#InstallingARCo-mysqlgrant>, 
>>> you can perform cross_cluster queries. You must use the 
>>> fully-qualified names when accessing objects, for example 
>>> /database_name/./table_name/.
>>>     
>>
>>
>> Many Thanks,
>> Regards
>>
>>
>>
>>   
>

-- 
Sergio Díaz Montes
Centro de Supercomputacion de Galicia
Avda. de Vigo. s/n (Campus Sur) 15706 Santiago de Compostela (Spain)
Tel: +34 981 56 98 10 ; Fax: +34 981 59 46 16
email: sdiaz at cesga.es ; http://www.cesga.es/
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