Is Apache Cassandra community can update this documentation ? I don't think so, it's hosted on DataStax website and it's not public Wiki.
Anyway you know what is right quorum calculation formula is ))). Best regards, Vladimir Yudovin, Winguzone - Hosted Cloud Cassandra Launch your cluster in minutes. ---- On Tue, 22 Nov 2016 09:01:32 -0500CHAUMIER, RAPHAËL <racha...@bouyguestelecom.fr> <racha...@bouyguestelecom.fr> wrote ---- Thank you Hannu, Is Apache Cassandra community can update this documentation ? De : Hannu Kröger [mailto:hkro...@gmail.com] Envoyé : mardi 22 novembre 2016 14:48 À : user@cassandra.apache.org Objet : Re: cassandra documentation (Multiple datacenter write requests) question Looks like the graph is wrong. Hannu On 22 Nov 2016, at 15.43, CHAUMIER, RAPHAËL <racha...@bouyguestelecom.fr> wrote: Hello everyone, I don’t know if you have access to DataStax documentation. I don’t understand the example about Multiple datacenter write requests (http://docs.datastax.com/en/cassandra/3.0/cassandra/dml/dmlClientRequestsMultiDCWrites.html). The graph shows there’s 3 nodes making up of QUORUM, but based on the quorum computation rule (http://docs.datastax.com/en/cassandra/3.0/cassandra/dml/dmlConfigConsistency.html#dmlConfigConsistency__about-the-quorum-level) quorum = (sum_of_replication_factors / 2) + 1 sum_of_replication_factors = datacenter1_RF + datacenter2_RF + . . . + datacentern_RF If I have 2 DC of 3 replica nodes so the quorum should be = ( 3+3 /2) +1 = (6/2) + 1 = 3 + 1 = 4 Am I missing something ? Thanks for your response. Regards, L'intégrité de ce message n'étant pas assurée sur internet, la société expéditrice ne peut être tenue responsable de son contenu ni de ses pièces jointes. Toute utilisation ou diffusion non autorisée est interdite. Si vous n'êtes pas destinataire de ce message, merci de le détruire et d'avertir l'expéditeur. The integrity of this message cannot be guaranteed on the Internet. The company that sent this message cannot therefore be held liable for its content nor attachments. Any unauthorized use or dissemination is prohibited. If you are not the intended recipient of this message, then please delete it and notify the sender.
