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Questions tagged [distributed-database]

Anything related to distributed databases and the techniques and the tools used to manage them. A distributed database is a database whose information is not stored in a single physical location, but it is spread over various devices, often placed far apart.

Anything related to distributed databases and the techniques and the tools used to manage them. A distributed database is a database whose information is not stored in a single physical location, but it is spread over various devices, often placed far apart.

188 questions
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How can I import a jsonb column from a csv file using the COPY command?

I am trying to import the following csv file into YugaByte DB YSQL. Note that the second entry in each row is a JSON object. "15-06-2018","{\"file_name\": \"myfile1\", \"remote_ip\": \"X.X.X.X\"}" "15-06-2018","{\"file_name\": \"myfile2\",…
Karthik Ranganathan
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Key-Value storage with realtime multimaster replication

Are there any opensource distributed key-value storage which satisfy following conditions. Almost real-time multimaster replication. (tie-breaker will be based on timestamp and not anything more complicated) Each node should be able to work with…
Anoop
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Accessibility of data using different APIs

Can I access the same data using different APIs? Example: Can I insert the data using YCQL and read it using YEDIS?
Ricardo Adam
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How is YugaByte DB's replication model?

How similar or different is YugaByte DB's replication model compared to PostgreSQL master-slave replication?
Charlie O'Riely
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How is memory managed in YugaByte DB?

How is memory is managed in YugaByte DB? I understand that there are two sets of processes yb-tserver & yb-master, but couldn't find too many other details. Specific questions: How much RAM do each of these processes use by default? Is there a way…
Srinath
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application.properties configuration for distributed database pattern

I am trying to develop a microservice by using sprin and spring boot with postgresql database. I am here using distributted datbase. So for particular region I am using one DB, and for other region I am using different DB. Currently I only tried…
Mr.DevEng
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Orient DB distributed replica on embedded server

We are setting a distributed OrientDB database on an embedded server (we are using OrientDB v.2.2.31). We would like to have a master-replica configuration, but we have encountered some issues in doing that. We have setted the…
Alessandro Bardini
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How to shard only specific tables using vitess

I have created an unsharded keyspace with three tables. Now I would like to shard my keyspace for first two tables but don't want to shard the third table. How can this be done? Vitess documentation does not contain any info or example regarding…
manojadams
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Communication link failure: JDBC

I have a MySqlConnection class for a distributed database in 3 cities. I want to access to 3 different IPs, but when the program tries to connect to a node, JDBC shows an exception of "Communications link failure". The code is the next one: public…
Arturo Salas
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In distributed Database the data are distributed or the relational entities are distributed?

Distributed Database System Data are logically interrelated but i want know is that, the table's Entities are distributed or the Data of a particular tables are distributed? Like if there is a table called User then the user's whole data will…
Karsh Soni
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What is considered a write against the entity group limit in Google Cloud Datastore

According to the Datastore documentation, there is a maximum write rate to an entity group of 1 per second. https://cloud.google.com/datastore/docs/concepts/limits I'd like to know if this scenario counts towards that limit as a single, or multiple…
Wayne Ashley Berry
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When do you exactly use consensus algorithm in distributed system?

As i understand in distributed system we are supposed to handle network partition failure which is solved by using multiple copies of the same data. Is this the only place where we use consensus algorithm? What is the difference between…
Sundar
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Distributed database implementation in sql server

Currently, We have central Database at Head Office and users from sub offices ,scattered around the country, connect to central database. Now we want to distribute the database in disconnected mode at each Sub office level and we want data to be…
gkarya42
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Accessing data on distributed database on OrientDB

I'm new to distributed databases. I configured a distributed OrientDB configuration on multiple EC2 instances and they recognize each other and are communicating with each other. 1) Now, suppose I have a particular database on server 1 and not on…
Abhilash Panigrahi
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How do I prevent malicious DHT clients that might want to alter/delete my DHT data?

Okay, so lets say I have a DHT running with 10 clients with a bunch of data in it. Wouldn't it be relatively easy for a malicious client to run an alternate version of my program, that could do potentially destructive actions to my data(such as…
dessalines
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