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Re: [Postgres-xc-general] How to start work
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From: Koichi S. <koi...@gm...> - 2014-10-20 01:01:12
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Do you mean interaction between different XC clusters? If so, it is outside XC scope at present. You may need FDW or blink, which are not enabled in XC yet. Regards; --- Koichi Suzuki 2014-10-16 21:23 GMT+09:00 Gilberto Nunes <gil...@gm...>: > I see... > But, let's suppose if I have XC Cluster on site "A", and that Cluster also > connect with other site "B", which has it own Cluster. > > Then, when Site "A" goes off line, I suppose that when connection back on > line, there's some updates spread to cluster. Or am I wrong thinking like > that? > I'm just trying to understand... > > Thank you > > 2014-10-16 0:30 GMT-03:00 鈴木 幸市 <ko...@in...>: > >> Postgres-XC is based upon tightly coupled distributed database mode, which >> means it generally assumes all the nodes are up and available. >> >> In reality, if failed node is not involved in a transaction, it will be >> successful. If you try to update a shard at failed node, or you try to >> update replicated table which the failed node is involved, or if you try to >> issue DDL which is supposed to propagate to all the nodes, such transaction >> will fail. It is quite hard for XC to allow only partial DDL propagation >> because this will very easily make whole cluster inconsistent when the >> failed node is up and back. >> >> Hope your application meets this behavior. >> >> Regards; >> --- >> Koichi Suzuki >> >> 2014/10/15 20:16、Gilberto Nunes <gil...@gm...> のメール： >> >> Let me explatin >> >> What I looking for is using Potsgre-XC on distribuited sites... Once this >> site get off line for any reason, link Local Link failure or Cluster Link >> failuer, local application can continue works and once the link get back on >> line, the Postgres-XC sync the local difference with others nodes/databases >> on the others site... >> >> I need to know if this will be nice, if I use normal adsl... >> >> Thanks >> >> 2014-10-15 7:52 GMT-03:00 Abbas Butt <abb...@en...>: >>> >>> >>> >>> On Wed, Oct 15, 2014 at 3:47 PM, Gilberto Nunes >>> <gil...@gm...> wrote: >>>> >>>> Yep >>>> >>>> I'll work with 1.2 version... 1.0.4 was just for test purpose and to >>>> understand the concept... >>>> BTW, can work with ADSL as Internet Link, like 30 MBPS or dedicate link >>>> is recommend? >>> >>> >>> Do you mean the link between application and the cluster OR the link >>> between the nodes of the cluster? >>> If you mean the link between application and the cluster you should be >>> OK. >>> >>>> I know there's some others specs that I need to take in mind, like >>>> processors, memory, and so on... >>>> But my doubt is if I work with normal ADSL the DB will be work >>>> properly... >>>> >>>> Thanks >>>> >>>> 2014-10-15 0:01 GMT-03:00 鈴木 幸市 <ko...@in...>: >>>> >>>>> Hell; >>>>> >>>>> Abbas, thanks for the quick response. >>>>> >>>>> To start with, pgxc_ctl primer will be a good starting point. >>>>> Pgxc_ctl is postgres-xc cluster configuration/operation utility. >>>>> >>>>> Tutorial is available at >>>>> https://sourceforge.net/projects/postgres-xc/files/Pgxc_ctl_primer/ >>>>> >>>>> I’m afraid 1.0.x is a bit old. Why don’t you start with 1.1 or 1.2? >>>>> 1.1 and 1.2 are almost identical from XC-specific features point of view. >>>>> 1.2 comes with new PG 9.3 features. >>>>> >>>>> Postgres-XC document is available online. You can find links at >>>>> https://sourceforge.net/p/postgres-xc/xc-wiki/Documentation/ >>>>> >>>>> Pgxc_ctl reference is included in it. >>>>> >>>>> Cheers; >>>>> --- >>>>> Koichi Suzuki >>>>> >>>>> 2014/10/15 10:56、Abbas Butt <abb...@en...> のメール： >>>>> >>>>> >>>>> >>>>> On Wed, Oct 15, 2014 at 12:25 AM, Gilberto Nunes >>>>> <gil...@gm...> wrote: >>>>>> >>>>>> Hi... >>>>>> >>>>>> I already deploy 3 VM's with PostgresXC 1.0.4, follow the steps here: >>>>>> >>>>>> http://postgresxc.wikia.com/wiki/Real_Server_configuration >>>>>> >>>>>> But I need to know how start to work?? >>>>>> Where my application connect to?? >>>>> >>>>> >>>>> Your application can connect to any of the coordinators. >>>>> >>>>>> >>>>>> >>>>>> Thanks for any kind of help........ >>>>>> >>>>>> -- >>>>>> -- >>>>>> >>>>>> Gilberto Ferreira >>>>>> >>>>>> >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> Comprehensive Server Monitoring with Site24x7. >>>>>> Monitor 10 servers for $9/Month. >>>>>> Get alerted through email, SMS, voice calls or mobile push >>>>>> notifications. >>>>>> Take corrective actions from your mobile device. >>>>>> http://p.sf.net/sfu/Zoho >>>>>> _______________________________________________ >>>>>> Postgres-xc-general mailing list >>>>>> Pos...@li... >>>>>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> -- >>>>> Abbas >>>>> Architect >>>>> >>>>> Ph: 92.334.5100153 >>>>> Skype ID: gabbasb >>>>> www.enterprisedb.com >>>>> >>>>> Follow us on Twitter >>>>> @EnterpriseDB >>>>> >>>>> Visit EnterpriseDB for tutorials, webinars, whitepapers and more >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Comprehensive Server Monitoring with Site24x7. >>>>> Monitor 10 servers for $9/Month. >>>>> Get alerted through email, SMS, voice calls or mobile push >>>>> notifications. >>>>> Take corrective actions from your mobile device. >>>>> http://p.sf.net/sfu/Zoho_______________________________________________ >>>>> Postgres-xc-general mailing list >>>>> Pos...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> -- >>>> >>>> Gilberto Ferreira >>>> >>> >>> >>> >>> -- >>> -- >>> Abbas >>> Architect >>> >>> Ph: 92.334.5100153 >>> Skype ID: gabbasb >>> www.enterprisedb.com >>> >>> Follow us on Twitter >>> @EnterpriseDB >>> >>> Visit EnterpriseDB for tutorials, webinars, whitepapers and more >> >> >> >> >> -- >> -- >> >> Gilberto Ferreira >> >> > > > > -- > -- > > Gilberto Ferreira > > > ------------------------------------------------------------------------------ > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push notifications. > Take corrective actions from your mobile device. > http://p.sf.net/sfu/Zoho > _______________________________________________ > Postgres-xc-general mailing list > Pos...@li... > https://lists.sourceforge.net/lists/listinfo/postgres-xc-general > |
