Building software
sari and
Building software
The formula in Fig 5 is one of the reasons why Elasticsearch does not allow the update of the number of primary shards post index creation. What the default routing guarantees is that the data will be uniformly distributed across the cluster which would reduce query hotspots when retrieving documents
Database Partitioning is when you split the data inside the database into smaller "databases". One partition holds a part of your data. All partitions together form the entire database.
Partitioning is often used with replication, which means each partition's data is copied onto multiple nodes. This way, even though each record is in only one partition, it can be stored on different nodes for fault tolerance. A node may hold more than one partition.
When using a leader-follower replication model, the mix of partitioning and replication might look like this:
Cloudflare serves around 20% of the web with 46 million requests a second.
Surely they must have a lot of data.
Where do they store it?
Plain old PostgreSQL. 🐘
Around 15-20 clusters of them.
Each cluster consists of 3 servers split into two regions.
The primary region is… Show more
Platforms with Joe Wadcan // Metamuse podcast episode 63
museapp.comIn most companies, activity is driven by the org chart. That’s how decisions are made, communicated, and acted on. That’s why it’s hard to scale as a company grows. Deep org charts give structure to huge hierarchies of people, but they’re not great for executing on projects.
In Elasticsearch, these partitions are known as shards . Each node of the Elasticsearch cluster can serve queries independently for the partition it manages, thereby increasing query throughput.