Understanding Time Series Data Processing Functions in CnosDB

CnosSQL / By / 2023-12-17

CnosDB is a database specialized in time series data processing, designed to address storage and analysis challenges related to time series data. It provides efficient management and querying of time series data for users. To achieve this goal, CnosDB implements a series of dedicated functions, including the following categories: stats_agg Usage The stats_agg function is …

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Time Series Data Compression Algorithms

CnosDB Tech Talk / By / 2023-12-10

This article provides a brief introduction to the origin of time series compression tasks, classifies compression algorithms, and gives a brief overview of the advantages and disadvantages of common compression algorithms. Coding enthusiasts, come and explore the details! Introduction Time series data is a fundamental data type generated in various applications and fields such as …

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Evolutionary Journey of Master-Replica in CnosDB

CnosDB Tech Talk / By / 2023-12-06

The complexity of distributed storage systems involves issues such as data disaster recovery, consistency, high-concurrency requests, and large-capacity storage. This article combines the evolutionary history of CnosDB in a distributed environment, sharing insights on applying distributed theory to practical production, as well as the advantages, disadvantages, and application scenarios of different implementation methods. Distributed System …

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CnosDB FDW: A Door to PostgreSQL

CnosSQL / By / 2023-12-01

This document provides brief instructions for downloading, installing, and using CnosDB FDW. Please adjust the document according to your actual needs and environment. Overview CnosDB FDW is a Foreign Data Wrapper for accessing CnosDB database in PostgreSQL database. It provides the functionality to query CnosDB data in PostgreSQL. This document will guide you in downloading, installing and …

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CnosDB Supports Spatiotemporal Functions

CnosSQL / By / 2023-11-28

 CnosDB has added support for spatiotemporal functions in the recently released  version 2.4.0 . Overview The Spatiotemporal function is a function used to describe the structure and evolution of space-time. It has wide applications in fields such as physics, mathematics and computer science. Space-time functions can describe the position, speed, acceleration and other related properties of an …

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CnosDB Carnival! Full Support for Helm Deployment, Easily Dandle Your Distributed Time-series Database

CnosDB Tech Talk / By / 2023-11-12

 CnosDB carnival time is here, fully supporting Helm deployment! If you are a fan of the Internet of Things, Industrial Internet, Internet of Vehicles, or IT operation and maintenance, then you absolutely cannot miss this big news! CnosDB Helm Chart Let’s first take a look at what CnosDB Helm Chart is. To put it simply, this …

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CnosDB 2.4.0 Release: New Functions Added!

Uncategorized / By / 2023-11-07

CnosDB 2.4.0 has been released and is providing many new functions, function improvement and bugs fixed. New Aggregate Functions compact_state_agg [#1359 ] gauge_agg [ #1370 ] first [ #1395 ] last [ #1413 ] mode [ #1440 ] increase [ #1476 ] delta [ #1395 ] time_delta [ #1405 ] rate [ #1405 ] 🌐 GIS Functions[ #1465 ] ST_AsBinary ST_GeomFromWKB ST_Distanc ST_Area 💼 Standard Filed Names [ #1461 ] All field names are standardized into lowercase. Modifying Data Update …

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Optimize CnosDB Performance and Latency Using Jaeger Distributed Tracking System

CnosDB Tech Talk / By / 2023-11-03

In a formal production environment, database performance and latency are critical to ensuring the stable and efficient operation of the system. Especially when interacting with the CnosDB database, it becomes important to gain a deeper understanding of its performance. At this time, the Jaeger distributed tracing system plays a huge role. In this blog, we will delve into …

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When FineReport Meets CnosDB

CnosDB Tech Talk / By / 2023-10-25

With the rapid development of big data and Internet of Things applications, time series databases have become a key data storage and analysis tool. As a popular business intelligence tool, FineReport’s integration with the time series database CnosDB can provide enterprises with more powerful data analysis and visualization functions. This blog will introduce how to integrate FineReport …

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Building a High-Performance IoT Data Platform: A Complete Tutorial on EMQX and CnosDB

CnosDB Tech Talk / By / 2023-10-20

The device data and data storage solution connected to the platform in the Internet of Things project have the following characteristics: The dimensions, frequency, and number of devices for data collection are relatively large, and the amount of data collected is relatively large, which puts great pressure on the access throughput of the message server …

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