percyvega

Query Strings

• https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#query-string-syntax

Escape Characters

• e.g. to look for /usr/percyv/, use /usr/percyv/

Logic Operators Searches

• AND operator: this AND that, this && that
• OR operator: this that, this || that
• Exact phrase: "exact phrase"

percyvega

MongoDB

Terms

Database -> Collections -> Documents -> Fields

Concepts

Sharding (Data Partition, Horizontal Partition):

Breaks up the data among multiple servers.

percyvega

Concepts

Aperture

• It's the opening in a lens through which light passes to enter the camera.
• You can shrink or enlarge the size of the aperture to allow more or less light to reach your camera sensor.
• It affects the depth of field.
• It also affects the exposure of your images by making them brighter or darker.
• e.g. aperture of f/1.4
  • wide/large aperture
• a lot of light passing through the lens = bright image

percyvega

What is Kubernetes

* Kubernetes is an open-source container orchestrator
* K8s helps with:
	* Cluster Management of machines (perform health checks, bounce them, change cluster size)
	* Scheduling containers on those machines (match CPU/memory requirements with right machines).
* Defines API objects to describe your cluster’s desired state.
* Provides basic monitoring, logging, and health checking.
* Reconciles desired state and current state.