db RethinkDB

短命女 2022-04-06 11:37 199阅读 0赞

RethinkDB 已倒闭。

**如何安装RethinkDB**

https://www.rethinkdb.com/docs/start-on-startup/

**Install RethinkDB on CentOS**

https://www.rethinkdb.com/docs/install/centos/

https://download.rethinkdb.com/dist/rethinkdb-2.3.6.tgz

http://download.rethinkdb.com/centos/7/x86\_64/rethinkdb-2.3.6.x86\_64.rpm

**RethinkDB和MongoDB的对比**

https://www.rethinkdb.com/docs/comparison-tables/

# Development #

<table style="font-size:18px;border-collapse:collapse;border-spacing:0px;table-layout:fixed;color:#647276;font-family:'freight-sans-pro', FreightSans;background-color:#fbfbf9;"> 
 <thead> 
  <tr style="vertical-align:middle;"> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">&nbsp;</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">RethinkDB</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">MongoDB</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Platforms</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Linux, OS X, Windows</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Linux, OS X, Windows, Solaris</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Data model</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">JSON documents</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">BSON documents</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Data access</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Unified chainable dynamic query language</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Dynamic rich query language</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">JavaScript integration</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">V8 engine</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Spidermonkey/V8 engine</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Access languages</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">JSON protocol<br>3 official libraries<br>Many community supported libraries</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">BSON protocol<br>13 official libraries<br>Many community supported libraries</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Index types</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Primary key<br>Compound<br>Secondary<br>Geospatial<br>Arbitrarily computed</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Unique (unsharded only)<br>Compound<br>Secondary<br>Geospatial<br>Sparse</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Cloud deployment</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">AWS, dotCloud, Compose.io</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Many cloud platforms</td> 
  </tr> 
 </tbody> 
</table>

# Administration #

# Scaling #

<table style="font-size:18px;border-collapse:collapse;border-spacing:0px;table-layout:fixed;color:#647276;font-family:'freight-sans-pro', FreightSans;background-color:#fbfbf9;"> 
 <thead> 
  <tr style="vertical-align:middle;"> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">&nbsp;</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">RethinkDB</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">MongoDB</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Sharding</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Guided range-based sharding<br>(supervised/guided/advised/trained)</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Automatic range-based sharding</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Replication</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Sync and async replication</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Replica-sets with log-shipping</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Multi datacenter</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Server grouping via tags with per-group replication and write acknowledgements</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Supports different options for multi DC</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Map-reduce</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Multiple map-reduce functions<br>Executing ReQL or JavaScript operations</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">JavaScript-based map-reduce</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Performance</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">No published results</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">No official results</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Concurrency</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Event-based and coroutines<br>Asynchronous block-level MVCC</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Threading<br>Read-write locks</td> 
  </tr> 
 </tbody> 
</table>

# Architecture #

<table style="font-size:18px;border-collapse:collapse;border-spacing:0px;table-layout:fixed;color:#647276;font-family:'freight-sans-pro', FreightSans;background-color:#fbfbf9;"> 
 <thead> 
  <tr style="vertical-align:middle;"> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">&nbsp;</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">RethinkDB</th> 
   <th style="border-bottom:1px solid #c8c8c8;vertical-align:middle;">MongoDB</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Consistency model</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Immediate/strong consistency with support for out of date reads</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Immediate/strong consistency with support for reading from replicas</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Atomicity</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Document level</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Document level</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Durability</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Durable</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Durable only with journaling enabled</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Storage engine</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Log-structured B-tree serialization<br>with incremental, fully concurrent garbage compactor</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Memory mapped files</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Query distribution engine</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Transparent routing, distributed and parallelized</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Transparent routing requires additional&nbsp;<code style="font-family:monospace, monospace;background:#eeeeee;">mongos</code>&nbsp;processes</td> 
  </tr> 
  <tr style="vertical-align:middle;"> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Caching engine</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">Custom per-table configurable B-tree aware caching</td> 
   <td style="border-bottom:1px solid #eeeeee;vertical-align:middle;">OS-level memory mapped files LRU<br><br></td> 
  </tr> 
 </tbody> 
</table>

end