Title: SharDB
Author: Ron Rennick
Published: <strong>23. desember 2009</strong>
Last modified: 29. juni 2014

---

Søk gjennom innstikk

Dette innstikket **er ikkje testa med dei tre siste utgåvene av WordPress**. Det
kan henda det ikkje blir vedlikehalde lenger, og kan ha problem med nyare versjonar
av WordPress.

![](https://s.w.org/plugins/geopattern-icon/shardb.svg)

# SharDB

 Av [Ron Rennick](https://profiles.wordpress.org/wpmuguru/)

[Last ned](https://downloads.wordpress.org/plugin/shardb.2.8.1.zip)

 * [Detaljar](https://nn.wordpress.org/plugins/shardb/#description)
 * [Omtalar](https://nn.wordpress.org/plugins/shardb/#reviews)
 *  [Installasjon](https://nn.wordpress.org/plugins/shardb/#installation)
 * [Utvikling](https://nn.wordpress.org/plugins/shardb/#developers)

 [Hjelp](https://wordpress.org/support/plugin/shardb/)

## Skildring

This is intended for larger WordPress Network installs using an existing 1-3 character
MD5 hash (by blog id) based multi-DB sharding structure. It supports 16, 256 or 
4096 database shards. It also supports a separate database for blog id 1 and multiple
VIP databases (home & VIP code contribution by Luke Poland).

It should support any plugin that works with (and accesses all data via) the regular
WordPress database code.

It has been used to power MU version 2.7.1 through WordPress 4.8 sites and upgrade
sites from 2.7.1 through to the WordPress 4.8.

A detailed [installation guide](http://wpebooks.com/shardb-installation-guide/) 
can be purchased for a nominal fee.

This plugin is based on [HyperDB](https://wordpress.org/extend/plugins/hyperdb) 
which is the database plugin used by [WordPress.com](http://wordpress.com/). Like
HyperDB, this plugin autodetects whether a query is requesting a global or blog 
table.

## Skjermbilete

[⌊Site admin blogs screen showing dataset / partition for each blog.⌉⌊Site admin
blogs screen showing dataset / partition for each blog.⌉[

Site admin blogs screen showing dataset / partition for each blog.

## Installasjon

 1.  The database configuration instructions are at the top of db-settings.php. The
     configuration instructions assume that:
 2.   a. your databases all have the same database server, user & password.
      b. your blog shard databases are named according to the same prefix and a suffix
         of md5 hash, global, home or vipX.
 3.  Instructions for adding VIP databases are at the bottom of db-settings.php.
 4.  Once finished editing db-setting.php upload it to the same folder as wp-config.
     php for your WordPress install.
 5.  Edit your wp-config.php and add the following line after the database settings
     are defined: require_once(«db-settings.php»);
 6.  upload shardb-admin.php to /wp-content/plugins/.
 7.  Network activate the SharDB admin tools in Network Admin -> Plugins.
 8.  Migrate your data to your DB shards using the SharDB migration screen under Network
     Admin -> Settings on the main site.
 9.  upload db.php to /wp-content/.

## Vanlege spm.

  Installation Instructions

 1.  The database configuration instructions are at the top of db-settings.php. The
     configuration instructions assume that:
 2.   a. your databases all have the same database server, user & password.
      b. your blog shard databases are named according to the same prefix and a suffix
         of md5 hash, global, home or vipX.
 3.  Instructions for adding VIP databases are at the bottom of db-settings.php.
 4.  Once finished editing db-setting.php upload it to the same folder as wp-config.
     php for your WordPress install.
 5.  Edit your wp-config.php and add the following line after the database settings
     are defined:
      require_once(«db-settings.php»);
 6.  upload shardb-admin.php to /wp-content/plugins/.
 7.  Network activate the SharDB admin tools in Network Admin -> Plugins.
 8.  Migrate your data to your DB shards using the SharDB migration screen under Network
     Admin -> Settings on the main site.
 9.  upload db.php to /wp-content/.

## Omtalar

![](https://secure.gravatar.com/avatar/5782e9fb9c475f12a096aa48af746905ae55fef9026664b01e08f62b7d4bbe27?
s=60&d=retro&r=g)

### 󠀁[This Plugin still worked on wordpress 5.1.1 & PHP7.1 & Mysql 8](https://wordpress.org/support/topic/this-plugin-still-worked-on-wordpress-5-1-1-php7-1-mysql-8/)󠁿

 [KAZUKI KIKUCHI](https://profiles.wordpress.org/kkikuchi1220/) 30. april 2019

This plugin was so great, I was using multi-db developed by wpmudev before, but 
it wasn’t working after php7. So I moved multi-db to shardb. I want to say big thanks
to the developer and let wordpress users to know that this plugin is still working
following environment. WordPress: 5.1.1 PHP: 7.1.X MySQL: 8.X

![](https://secure.gravatar.com/avatar/cc16ffb593690511d3559842f2a3ba9b0d430aca75e6d494aa56ff391b017141?
s=60&d=retro&r=g)

### 󠀁[no compatible](https://wordpress.org/support/topic/no-compatible-2/)󠁿

 [Gronix](https://profiles.wordpress.org/gronix/) 21. januar 2017 1 reply

This plugin is not compatible with current version of WordPress. Error: SharDB must
set a database connection for use with escaping.

![](https://secure.gravatar.com/avatar/b360a836bfe1338269ab5802c9cdbe24feb6c507296c02cf3a6075afec0ad476?
s=60&d=retro&r=g)

### 󠀁[Does exactly what it is supposed to do](https://wordpress.org/support/topic/does-exactly-what-it-is-supposed-to-do/)󠁿

 [Robert](https://profiles.wordpress.org/robertgrinde/) 3. september 2016 2 replies

I moved from wpmudev’s multi-db plugin to this one and it worked right out of the
box!

 [ Les alle 4 omtalar ](https://wordpress.org/support/plugin/shardb/reviews/)

## Bidragsytarar og utviklarar

“SharDB” is open source software. The following people have contributed to this 
plugin.

Contributors

 *   [ Ron Rennick ](https://profiles.wordpress.org/wpmuguru/)

[Omset “SharDB” til ditt eige språk.](https://translate.wordpress.org/projects/wp-plugins/shardb)

### Interested in development?

[Les kjeldekoden](https://plugins.trac.wordpress.org/browser/shardb/), sjekk [SVN-lageret](https://plugins.svn.wordpress.org/shardb/)
eller abonner på [utviklingsloggen](https://plugins.trac.wordpress.org/log/shardb/)
med [RSS](https://plugins.trac.wordpress.org/log/shardb/?limit=100&mode=stop_on_copy&format=rss).

## Endringslogg

#### 2.8.1

 * Fix MySQL FOUND_ROWS() support used for pagination.
 * Fix warnings.

#### 2.8

 * Add PHP7 support.
 * Fix warnings.
 * Test with WP 4.8

#### 2.7.7

 * Fixed button URLs in the migration screen.
 * Test with WP 3.6

#### 2.7.6

 * Fixed notices issued by PHP 5.4.
 * Added 3.3.X support.
 * Added support for BuddyPress 1.5 forums.
 * Dropped support for pre 3.2 WordPress.

#### 2.7.5

 * Added 3.1.X support.
 * Migration script.

#### 2.7.4

 * Added 3.0.X support.
 * Fixed warning.

#### 2.7.3

 * Added 2.9.1.1 comment meta support.

#### 2.7.2

 * Added dataset / partition to site admin blogs screen.

#### 2.7.1

 * Original version.

## Om

 *  Version **2.7.7**
 *  Last updated **12 år sidan**
 *  Active installations **10+**
 *  WordPress version ** 4.7 eller nyare **
 *  Tested up to **4.8.30**
 *  Language
 * [English (US)](https://wordpress.org/plugins/shardb/)
 * Tags
 * [database](https://nn.wordpress.org/plugins/tags/database/)[multiple](https://nn.wordpress.org/plugins/tags/multiple/)
   [multisite](https://nn.wordpress.org/plugins/tags/multisite/)
 *  [Avansert vising](https://nn.wordpress.org/plugins/shardb/advanced/)

## Vurderingar

 4 out of 5 stars.

 *  [  3 5-star reviews     ](https://wordpress.org/support/plugin/shardb/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/shardb/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/shardb/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/shardb/reviews/?filter=2)
 *  [  1 1-star review     ](https://wordpress.org/support/plugin/shardb/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/shardb/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/shardb/reviews/)

## Contributors

 *   [ Ron Rennick ](https://profiles.wordpress.org/wpmuguru/)

## Hjelp

Har du noko å seia? Treng du hjelp?

 [Sjå hjelpeforumet](https://wordpress.org/support/plugin/shardb/)