Top "Sharding" questions

Sharding is a technique of partitioning database tables by row ("horizontally"); typically this technique requires a key to be selected that determines how the rows are to be partitioned.

ElasticSearch: Unassigned Shards, how to fix?

I have an ES cluster with 4 nodes: number_of_replicas: 1 search01 - master: false, data: false search02 - master: true, …

elasticsearch sharding master
Database sharding vs partitioning

I have been reading about scalable architectures recently. In that context, two words that keep on showing up with regards …

mysql sharding database-partitioning
MongoDB querying performance for over 5 million records

We've recently hit the >2 Million records for one of our main collections and now we started to suffer for …

mongodb indexing sharding
Database partitioning - Horizontal vs Vertical - Difference between Normalization and Row Splitting?

I am trying to grasp the different concepts of Database Partitioning and this is what I understood of it: Horizontal …

database database-design database-performance sharding database-partitioning
MySQL sharding approaches?

What is the best approach for Sharding MySQL tables. The approaches I can think of are : Application Level sharding? Sharding …

mysql sharding
How do I speed up deletes from a large database table?

Here's the problem I am trying to solve: I have recently completed a data layer re-design that allows me to …

sql-server database scalability sharding
Primary shard is not active or isn't assigned is a known node ?

I am running an elastic search version 4.1 on windows 8. I tried to index a document through java. When running a …

java indexing elasticsearch sharding
multiple consumers per kinesis shard

I read you can have multiple consumer apps per kinesis stream. http://docs.aws.amazon.com/kinesis/latest/dev/developing-consumers-with-kcl.…

sharding consumer amazon-kinesis
Does Cassandra support sharding?

Does Apache Cassandra support sharding? Apologize that this question must seem trivial, but I cannot seem to find the answer. …

nosql cassandra sharding
When do you start additional Elasticsearch nodes?

I'm in the middle of attempting to replace a Solr setup with Elasticsearch. This is a new setup, which has …

elasticsearch sharding bigdata