26

Re: Relational or NoSQL?

noob1111 wrote:

the Grandfather;
Generally the problem essence here in what, information transfer about clients (cards of clients) is conducted on normal electronic mail and the information . At such date transmission there is a row of problems such : mailing is led in an open type under the big list of electronic mailing addresses, in certain cases it leads to actuating of spams-filters on the side of receivers and to a nonreceipt them to the significant information, adding of new users in mailing is not supervised in any way + each receiver independently decides to store as the received information that complicates the further operation with the information. Number of participants of mailing 100 +
o Character of mailings the irregular;
It is necessary
o support of the protected data casting in the closed user group, is desirable that all messages reached addressees and by them have been processed lost-free
o tracing of adding of new participants in mailing
o support of the systematized, centralized storage of the received information on user side with possible subsequent handling and search in an array before the transferred information.
. it is necessary to organize the uniform protected automated platform for an information exchange between subjects with the systematized storage of messages.
It is necessary to pick up mechanisms for the optimal decision. I write the diploma

We for email mailings use sheaf ActiveMQ + MailBee

27

Re: Relational or NoSQL?

noob1111 wrote:

skyANA;
And if companies 100 +? The multimaster replication approaches?

Why is not present? smile But it is better you describe more in detail that gathered .

28

Re: Relational or NoSQL?

skyANA;
Instead of mailing of messages to add cards of clients at once in a DB, accordingly that could add 100 + the companies as one of variants, it is possible not the best)

29

Re: Relational or NoSQL?

Dimitry Sibiryakov;
And how to trace, what the message reached all nodes in p2p networks? Or how to a node to define, what it received all cards and necessarily to add the lacking?

30

Re: Relational or NoSQL?

In two-thousand we wrote system for oil industry workers: Oracle, 100 + servers across all Russia, replication.

31

Re: Relational or NoSQL?

noob1111 wrote:

and how to trace, what the message reached all nodes in p2p networks? Or how to a node to define, what it received all cards and necessarily to add the lacking?

esteem about eventual consistency and  - the theorem.

32

Re: Relational or NoSQL?

skyANA;
And peer-to-peer replication can be used? How often it is used in practice?

33

Re: Relational or NoSQL?

noob1111 wrote:

skyANA;
And peer-to-peer replication can be used? How often it is used in practice?

... Amazon DynamoDB (S3), Cassandra, MongoDB, Riak...