f4f0373579
Writing points that were not sorted by time could cause very high CPU usages and increased latencies because each point inserted would cause the in-memory cache to be resorted. The worst case would be writing a large batch of N points in reverse time order which would invoke N sorts of the slice. This patch keeps track of which slices need to be sorted and sorts them once at the end. In the previous example, the N sorts becomes one. There is still a pathalogical case that would require N/2 sorts. For example, 10000 points split across 5000 series. Each series has two points that are in reverse time order. This would incur 5000 sorts still. Fixes #3159 |
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|---|---|---|
| .hooks | ||
| client | ||
| cluster | ||
| cmd | ||
| etc | ||
| influxql | ||
| meta | ||
| scripts | ||
| services | ||
| shared/admin | ||
| snapshot | ||
| statik | ||
| tcp | ||
| tests | ||
| toml | ||
| tsdb | ||
| uuid | ||
| .gitignore | ||
| CHANGELOG.md | ||
| CONTRIBUTING.md | ||
| LICENSE | ||
| QUERIES.md | ||
| README.md | ||
| balancer.go | ||
| balancer_test.go | ||
| circle-test.sh | ||
| circle.yml | ||
| diagnostics.go | ||
| errors.go | ||
| nightly.sh | ||
| package.sh | ||
README.md
InfluxDB 
An Open-Source, Distributed, Time Series Database
InfluxDB v0.9.0 is now out. Going forward, the 0.9.x series of releases will not make breaking API changes or breaking changes to the underlying data storage. However, 0.9.0 clustering should be considered an alpha release.
InfluxDB is an open source distributed time series database with no external dependencies. It's useful for recording metrics, events, and performing analytics.
Features
- Built-in HTTP API so you don't have to write any server side code to get up and running.
- Clustering is supported out of the box, so that you can scale horizontally to handle your data.
- Simple to install and manage, and fast to get data in and out.
- It aims to answer queries in real-time. That means every data point is indexed as it comes in and is immediately available in queries that should return in < 100ms.
Getting Started
The following directions apply only to the 0.9.0 release or building from the source on master.
Building
You don't need to build the project to use it - you can use any of our pre-built packages to install InfluxDB. That's the recommended way to get it running. However, if you want to contribute to the core of InfluxDB, you'll need to build. For those adventurous enough, you can follow along on our docs.
Starting InfluxDB
service influxdb startif you have installed InfluxDB using an official Debian or RPM package.$GOPATH/bin/influxdif you have built InfluxDB from source.
Creating your first database
curl -G 'http://localhost:8086/query' --data-urlencode "q=CREATE DATABASE mydb"
Insert some data
curl -XPOST 'http://localhost:8086/write?db=mydb' \
-d 'cpu,host=server01,region=uswest value=1.0 1434055562000000000'
Query for the data
curl -G http://localhost:8086/query?pretty=true --data-urlencode "db=mydb" \
--data-urlencode "q=SELECT * FROM cpu WHERE host='server01'"
Helpful Links
- Understand the design goals and motivations of the project.
- Follow the getting started guide to find out how to install InfluxDB, start writing more data, and issue more queries - in just a few minutes.
- See the HTTP API documentation to start writing a library for your favorite language.