multi-master-replication

How does CosmosDb charge RUs for write operations in a multi-master enironment?

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问题 Multi-Master Database with single region: SDK reports ~10 RU to perform a write operation Multi-Master Database with 5 regions: : SDK reports ~46.86 RU for the same operation (~5x to incorporate replication to all regions. Makes sense) If you have a collection provisioned at 10k RU, does cosmos provision 10k RU for every region? The microsoft docs would suggest so but then the SDK reports all region cost when writing to the local region as above which seems a bit odd / confusing? Additionally

Is there multi master database with customizable replication level?

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问题 I need a multi master database to let users talk from different continents. Each user will write his data to his local master database and it will replicate data to other master databases in other counties/continents. The problem is that I can't store all copies of all users data in all data centers. I need something like a database/solution which will let me to set a replication level. I need to have ability read any data from any nodes but store data on several nodes (on 3 nodes but not on

Does Redis support master-master replication?

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问题 From my understanding from the below questions which were asked quite some time back, Redis doesn't have a built-in support for master-master replication. Question 1 Question 2 Question 3 The official website as of now looks like there is nothing much to it about master-master replication. Is this still the case, i.e., does Redis still have no options for multi-master replication. And even third-party tools don't seem to be helping Redis achieve the same. I came accross Zabcluster and

Does Redis support master-master replication?

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From my understanding from the below questions which were asked quite some time back, Redis doesn't have a built-in support for master-master replication. Question 1 Question 2 Question 3 The official website as of now looks like there is nothing much to it about master-master replication. Is this still the case, i.e., does Redis still have no options for multi-master replication. And even third-party tools don't seem to be helping Redis achieve the same. I came accross Zabcluster and Zookeeper but I'm not sure if this would meet my requirement of a simple master-master setup without much

Load Balancing using HAProxy for Postgresql 9.4

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问题 I have made a setup of multi-master replication of PostgreSQL using BDR (Bi-Directional Replication) among 4 nodes (virtual machines). Now i want to put a load-balancer for High Availability. For this i have installed and configured "HAProxy" on a different virtual machine, which is listening over 5432/tcp to connect. The haproxy configuration is as follows: listen pgsql_bdr *:5432 mode tcp option httpchk balance roundrobin server master 192.168.123.1:5432 check backup server slave1 192.168

Using Redis Replication on different machines (multi master)

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问题 I want to use Redis as distributed cache in my application. One of the demands is to have Active Active availability meaning that I have one data center in one place and another one somewhere else. If one data center fails I want my user to feel nothing and to be able to have all the data from the first data center in the second site and continue working - to have a master on the second site as well. Is it possible? 回答1: You're asking for an Active-Active, a.k.a. multi master, solution but