[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [Spacewalk-list] Migration from pgsql to oracle



I'll consult partition with my db team. Thanks for suggestion.

2014-11-19 16:50 GMT+01:00 Paul Robert Marino <prmarino1 gmail com>:
Have you considered using a less drastic approach like partitioning
some of the tables and tuning the ram.
I some how doubt the single CPU core per query it the problem because
PostgreSQL is very good at handling bulk queries as opposed to lots of
queries for tiny data sets.

Here is something you can check if  a directory named
/var/lib/pgsql/data/pg_tmp exist on your system then your queries are
exceeding the allowed rem for a single query and PostgreSQL is using
that directory to essentially create swap files for queries if that is
happening you need more ram or you need to tune your PostgreSQL
server.

Here is a good place to start reading about table partitions
https://wiki.postgresql.org/wiki/Table_partitioning that with
constraint exclusion enabled in the config can help a lot with large
data sets.









On Wed, Nov 19, 2014 at 10:02 AM, Krzysztof Pawłowski
<msciciel msciciel eu> wrote:
> Ofcourse. But i'll will be planned propably for january. I'll give feedback
> if we encounter problems or not.
>
> 2014-11-19 15:49 GMT+01:00 Nahelou Sébastien
> <sebastien nahelou worldline com>:
>>
>> Hello
>>
>>
>>
>> I’m very interesting about your migration. Could you please give your
>> feedback when your database migration will be done ?
>>
>>
>>
>> Thanks
>>
>>
>>
>> De : spacewalk-list-bounces redhat com
>> [mailto:spacewalk-list-bounces redhat com] De la part de Krzysztof Pawlowski
>> Envoyé : mercredi 19 novembre 2014 15:41
>> À : spacewalk-list redhat com
>> Objet : Re: [Spacewalk-list] Migration from pgsql to oracle
>>
>>
>>
>> 1. I read that oracle is performing much better in bigger spacewalk
>> deployment. I have 1600 clients connected to spacewalk and is impossible to
>> schedule tasks on all hosts. My db team said that pgsql is limited to single
>> core per connections which means that spacewalk cannot utilize db in more
>> efficient way. Maybe (I hope) i'm not aware of configuration options which
>> make this possible ?
>>
>> We have oracle support so another instance is not a problem for us. I'll
>> try test export import with db-control.
>>
>>
>>
>> 2014-11-19 12:54 GMT+01:00 Waldirio Manhães Pinheiro <waldirio gmail com>:
>>
>> Hello Krzysztof,
>>
>>
>>
>> I see, I've one question for you.
>>
>>
>>
>> 1. Why do you want change from postgresql to Oracle db ?!, do you have
>> Oracle support !? Just because I'm curious :-)
>>
>>
>>
>> What you can do is, build a new machine with SW and Oracle to test, export
>> from SW with postgresql using db-control and import in SW with Oracle using
>> db-control. In theory, the data model is the same changing only the sgdb, so
>> will not get problem about data.
>>
>>
>>
>> Let me know if you have any doubt about it.
>>
>>
>>
>>
>> ______________
>> Atenciosamente
>> Waldirio
>> msn: waldirio gmail com
>> Skype: waldirio
>> Site: www.waldirio.com.br
>> Blog: blog.waldirio.com.br
>>
>> LinkedIn: http://br.linkedin.com/pub/waldirio-pinheiro/22/b21/646
>> PGP: www.waldirio.com.br/public.html
>>
>>
>>
>> On Wed, Nov 19, 2014 at 9:20 AM, Krzysztof Pawłowski
>> <msciciel msciciel eu> wrote:
>>
>> I know that I can but problem is that my spacewalk has 1000+ clients and
>> is using pgsql as db backend now.
>>
>>
>>
>> 2014-11-19 12:08 GMT+01:00 Waldirio Manhães Pinheiro <waldirio gmail com>:
>>
>> Hello Krzysztof, good morning
>>
>>
>>
>> you can use Oracle as backend
>> (https://fedorahosted.org/spacewalk/wiki/HowToInstall#Databaseserver)
>>
>>
>>
>> B'Regards
>>
>>
>>
>>
>> ______________
>> Atenciosamente
>> Waldirio
>> msn: waldirio gmail com
>> Skype: waldirio
>> Site: www.waldirio.com.br
>> Blog: blog.waldirio.com.br
>>
>> LinkedIn: http://br.linkedin.com/pub/waldirio-pinheiro/22/b21/646
>> PGP: www.waldirio.com.br/public.html
>>
>>
>>
>> On Wed, Nov 19, 2014 at 7:42 AM, Krzysztof Pawłowski
>> <msciciel msciciel eu> wrote:
>>
>> Is there any way to switch db backend to oracle ?
>>
>>
>> _______________________________________________
>> Spacewalk-list mailing list
>> Spacewalk-list redhat com
>> https://www.redhat.com/mailman/listinfo/spacewalk-list
>>
>>
>>
>>
>> _______________________________________________
>> Spacewalk-list mailing list
>> Spacewalk-list redhat com
>> https://www.redhat.com/mailman/listinfo/spacewalk-list
>>
>>
>>
>>
>> _______________________________________________
>> Spacewalk-list mailing list
>> Spacewalk-list redhat com
>> https://www.redhat.com/mailman/listinfo/spacewalk-list
>>
>>
>>
>>
>> _______________________________________________
>> Spacewalk-list mailing list
>> Spacewalk-list redhat com
>> https://www.redhat.com/mailman/listinfo/spacewalk-list
>>
>>
>>
>>
>> ________________________________
>>
>> Ce message et les pièces jointes sont confidentiels et réservés à l'usage
>> exclusif de ses destinataires. Il peut également être protégé par le secret
>> professionnel. Si vous recevez ce message par erreur, merci d'en avertir
>> immédiatement l'expéditeur et de le détruire. L'intégrité du message ne
>> pouvant être assurée sur Internet, la responsabilité de Worldline ne pourra
>> être recherchée quant au contenu de ce message. Bien que les meilleurs
>> efforts soient faits pour maintenir cette transmission exempte de tout
>> virus, l'expéditeur ne donne aucune garantie à cet égard et sa
>> responsabilité ne saurait être recherchée pour tout dommage résultant d'un
>> virus transmis.
>>
>> This e-mail and the documents attached are confidential and intended
>> solely for the addressee; it may also be privileged. If you receive this
>> e-mail in error, please notify the sender immediately and destroy it. As its
>> integrity cannot be secured on the Internet, the Worldline liability cannot
>> be triggered for the message content. Although the sender endeavours to
>> maintain a computer virus-free network, the sender does not warrant that
>> this transmission is virus-free and will not be liable for any damages
>> resulting from any virus transmitted.
>>
>> _______________________________________________
>> Spacewalk-list mailing list
>> Spacewalk-list redhat com
>> https://www.redhat.com/mailman/listinfo/spacewalk-list
>
>
>
> _______________________________________________
> Spacewalk-list mailing list
> Spacewalk-list redhat com
> https://www.redhat.com/mailman/listinfo/spacewalk-list

_______________________________________________
Spacewalk-list mailing list
Spacewalk-list redhat com
https://www.redhat.com/mailman/listinfo/spacewalk-list


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]