https://github.com/gutobortolozzo/node-lsm

log structured merge tree in pure node.js
https://github.com/gutobortolozzo/node-lsm

Last synced: 2 months ago
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log structured merge tree in pure node.js

• Host: GitHub
• URL: https://github.com/gutobortolozzo/node-lsm
• Owner: gutobortolozzo
• License: mit
• Created: 2015-09-13T02:04:16.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-09-16T23:19:33.000Z (over 9 years ago)
• Last Synced: 2024-08-02T00:21:50.603Z (6 months ago)
• Language: JavaScript
• Size: 203 KB
• Stars: 9
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-nodejs-pure-js - node-lsm

README

        
# WIP

[![Build Status](https://travis-ci.org/gutobortolozzo/node-lsm.svg?branch=master)](https://travis-ci.org/gutobortolozzo/node-lsm)

# LSM, a log-structured-merge-tree, implemented in node.js.

``` js

var lsm = Subject('/tmp/example', {

    threshold : 1000 //optional

});

lsm.open().then(function(){

    return lsm.put('#12345', 'hello');

}).then(function(){

    return lsm.get('#12345');

}).then(function(result){

    console.log('result', result); // hello

});

```

everything is just line separated json!

``` js

cat /tmp/example/log-00000001.json

```

contains this.

``` js

{"key":"hello","value":"HI","type":"put"}

{"key":"what","value":"WHO","type":"put"}

```

put more data in there and you'll get ```SST``` files.

# Features

- ```PUT``` string key/value

- ```GET``` string key/value

- ```DEL``` string key/value

# TODO

- Support multiple lsm's opened pointing to the same data folder.

- All operations promisify