Building software
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Building software
Northflank — Deploy any project in seconds, in our cloud or yours.
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Replication lag occurs when there is a delay between a write operation being executed on the primary (leader) node and the same operation being replicated to the secondary (follower) nodes.
Replication lag is a basic issue in leader-based replication systems that are made for better availability, scalability, and faster response times by spreading out read operations across replicas in different locations.
System Design Interview – An Insider's Guide: Volume 2
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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.
Improving query performance in ElasticSearch at scale
The choice of the routing key in our case was a combination of the unique identifier (UUID) and type of the primary participant of each event in a calendar. This choice was made based on the querying patterns of the consuming application and to maintain a degree of uniqueness.
Improving query performance in ElasticSearch at scale
GitHub - sindresorhus/awesome: 😎 Awesome lists about all kinds of interesting topics
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