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Så här fixar du error vid upprättande av en anslutning till en database i WordPress

Meddelandet ”Fel vid upprättande av en databasanslutning” i WordPress är ett allvarligt fel som gör din webbplats otillgänglig för användarna. Det inträffar när WordPress inte kan ansluta till databasen.

Eftersom flera faktorer kan påverka den här anslutningen kan felet vara lite svårt att felsöka för nybörjare.

Vi har drivit vår blogg på WordPress under de senaste 16 åren och har stött på en mängd olika fel och varningar, inklusive ”Fel vid upprättande av en databasanslutning”. Genom vår erfarenhet och många försök och misstag har vi lärt oss att felsöka dessa problem utan att störa vår webbplats.

I den här artikeln kommer vi att visa dig hur du enkelt fixar ”Error establishing a database connection” på din WordPress site, steg för steg.

Fix the Error Establishing a Database Connection in WordPress

Vad orsakar error vid upprättande av en anslutning till en database i WordPress?

En database är en programvara som gör det enkelt att lagra, organisera och hämta data från andra program.

Som ett system för hantering av innehåll använder WordPress en database för att lagra all your content och andra data på din website. Den ansluter sedan till databasen varje gång någon besöker din website.

WordPress behöver följande information för att ansluta till databasen:

  • Namnet på din database
  • Database användarnamn och password
  • Server för databaser

Den här informationen lagras i din WordPress-konfigurationsfil, som heter wp-config.php.

Om någon av dessa uppgifter är felaktiga kommer WordPress att misslyckas med att ansluta till din server för databasen och du kommer att se felet ”Error establishing a database connection”.

Database connection error in WordPress

Det är ett av de vanligaste WordPress error. Förutom felaktiga credentials kan detta error också dyka upp om databasens server är nere eller databasfilerna är korrupta.

Med detta sagt, låt oss ta en titt på hur man fixar ”Error establishing database connection” issue i WordPress med steg-för-steg troubleshoot.

1. Kontrollera din WordPress Database Credentials

Felaktiga autentiseringsuppgifter är den vanligaste orsakentill felet i databasanslutningen. Om du nyligen har flyttat din WordPress-webbplats till ett nytt webbhotell är det sannolikt detta som är problemet.

Credentials för din WordPress-databas lagras i filen wp-config.php. Det är konfigurationsfilen för WordPress som innehåller viktiga settings, inklusive information om databasen.

Om du ej har redigerat filen wp-config.php tidigare kan du ta en titt på vår guide för nybörjare om hur du redigerar filen wp-config.php för mer instruktioner.

Du kommer att leta efter följande rader i filen wp-config.php:

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define( 'DB_NAME', 'database_name_here' );
/** MySQL database username */
define( 'DB_USER', 'username_here' );
/** MySQL database password */
define( 'DB_PASSWORD', 'password_here' );
/** MySQL hostname */
define( 'DB_HOST', 'localhost' );

Här måste du se till att informationen om databasnamn, användarnamn, password och server är korrekt.

Du kan bekräfta denna information från instrumentpanelen för ditt WordPress dashboard. För denna tutorial kommer vi att använda Bluehost, men processen kommer att vara liknande för andra webbhotell paneler också.

När du har loggat in klickar du på fliken ”Website” i den vänstra kolumnen och växlar sedan till fliken ”Advanced”. Rulla sedan ner till sektionen ”Database” och klicka på knappen ”Manage” bredvid den.

Click the Manage button next to the Database section

Detta kommer att öppna sidan MySQL Databases i cPanel i ett new fönster.

Här kan du hitta ditt databasnamn och användarnamn i sektionen ”Current Database”. Tänk på att copy and paste dessa details till ett anteckningsblock så att du kan add to dem till wp-config-filen.

Find your database name and username in the Current Databases section

Därefter rullar du ner till sektionen ”Current Users”, där du kan clicka på länken ”Change Password” bredvid namnet på din database.

Du kommer då till en new vy där du kan ändra lösenordet för databasen så som du gillar det.

Change your database password

När du har bekräftat all din database details kan du ändra den informationen i din wp-config.php-fil om det behövs.

Efter det kan du försöka besöka din website igen för att se om error i anslutningen till databasen har försvunnit.

Om du fortfarande kan se error betyder det att något annat är fel.

2. Kontrollera informationen om servern för din Database

Om du är säker på att uppgifterna om databasens namn, användarnamn och password är korrekta, är det bra att kontrollera att du använder korrekt information om databasens server.

De flesta webbhotell för WordPress använder localhost som server för din database. Vissa hanterade WordPress-värdföretag använder dock separata servrar för att servera databaser. I så fall kommer din databas serverinformation inte att vara localhost.

Detta innebär att du måste kontakta ditt webbhotell för WordPress för att bekräfta dessa detaljer.

3. Reparera WordPress Database

Nu kanske du får ett annat fel i wp-admins instrumentpanel, till exempel ”En eller flera databastabeller är inte tillgängliga” eller ”Databasen kan behöva repareras”. I så fall måste du reparera din databas.

Du kan göra detta genom att lägga till följande rad i din wp-config.php-fil. Se till att add to den precis före ”That’s all, stop editing! Trevlig blogg”:

define('WP_ALLOW_REPAIR', true);

När du har gjort det kan du se inställningarna genom att besöka den här page: http://www.yoursite.com/wp-admin/maint/repair.php. Se bara till att ersätta yoursite.com med ditt eget domain name.

Här måste du klicka på knappen ”Repair Database” för att starta processen.

Repair WordPress database

Note: Användaren behöver ej vara inloggad för att komma åt reparationssidan för databasen. När du är klar med att reparera och optimera din database, se till att ta bort den här kodraden från din wp-config.php.

Men om du inte vill lägga till någon kod på din webbplats kan du också reparera din databas med hjälp av ditt webbhotellkontos cPanel.

Gå vidare och besök ditt webbhotell konto, där du måste öppna sidan ”Websites” från den vänstra kolumnen. Gå sedan till tabben ”Advanced” och klicka på knappen ”Manage” i sectionen ”Database”.

Click the Manage button next to the Database section

Detta kommer att öppna cPanel i en new tab. Här rullar du ner till ”Modify Databases” section och väljer namnet på din database från ”Repair Database” dropdown menu.

När du har gjort det klickar du bara på knappen ”Reparera databas” för att starta processen.

Click the Repair database button

Webbhotellets panel kommer nu automatiskt att reparera din database åt you.

När processen är completed kommer du också att se ett success message.

Database repair success message

Du kan nu besöka din WordPress-webbplats för att se om felet har åtgärdats eller inte.

4. Kontrollera om din server i databasen är nere

Om allt verkar vara korrekt och WordPress fortfarande inte kan anslutas till databasen, kan din databasserver (MySQL server) vara nere.

Detta kan hända på grund av tung trafik på en server. Din server kan helt enkelt inte hantera hämtar (särskilt när du har delade webbhotell).

På grund av detta kommer din webbplats att bli långsam och kan till och med mata ut felet för vissa användare. I det här fallet bör du ringa eller livechatta med din hostingleverantör och fråga dem om din MySQL-server är responsiv.

Om du dessutom har andra webbplatser som körs på samma server kan du kontrollera dessa webbplatser för att bekräfta att din SQL-server är nere.

Om du ej har någon annan site på samma webbhotell account, så går du bara till din dashboard och byter till tabben ”Advanced”.

Därefter klickar du på knappen ”Hantera” bredvid phpMyAdmin section.

Click the Manage button next to the PHPMyAdmin option

Detta öppnar phpMyAdmin i ett nytt fönster, där du måste klicka på alternativet ”Database” högst upp.

Därefter klickar du på namnet på din database för att komma åt dess Settings. Om du kan göra det, är det dags för dig att kontrollera om din databas användare har tillräckliga behörigheter.

Connect PHPMyAdmin with your database

För att göra detta måste du skapa en new fil som heter testconnection.php och klistra in följande kod i den:

<?php
$link = mysqli_connect('localhost', 'username', 'password');
if (!$link) {
die('Could not connect: ' . mysqli_error());
}
echo 'Connected successfully';
mysqli_close($link);
?>

När du klistrar in koden, se till att ersätta användarnamn och password med dina egna. Du kan nu uploada filen till din website och komma åt den via en web browser.

Om skriptet ansluts utan problem betyder det att din användare har tillräcklig behörighet och att det är något annat som orsakar error.

Nu måste du gå tillbaka till din wp-config-fil och skanna den för att se till att alla detaljer är korrekta och utan några stavfel.

Ytterligare lösningar som har fungerat för användare

Om de ovan nämnda felsökningstipsen inte lyckas fixa felet i anslutningen till databasen på din webbplats kan du prova dessa ytterligare steg.

Som våra användare har rapporterat har dessa steg hjälpt några av dem att lösa error i anslutning till databasen på sina webbplatser.

1. Update URL:en för WordPress site

Du kan försöka updating URL:en för WordPress site med hjälp av phpMyAdmin i cPanel.

Gå bara in på phpMyAdmin från din dashboard på webbhotellet och välj din WordPress database från listan.

Därefter växlar du till SQL-menyn högst upp och anger följande MySQL-fråga:

UPDATE wp_options SET option_value='YOUR_SITE_URL' WHERE option_name='siteurl'

Det ska se ut så här:

Change site URL

Glöm inte att ange din egen site URL och ändra wp_options till ditt eget tabellnamn, eftersom du kan ha ändrat WordPress tabellprefix.

2. Starta om web server

Användare på dedikerade servrar, språkversioner och virtuella privata servrar (VPS) kan försöka starta om sina servrar.

Detta kommer att starta om din web server och database server, vilket kan fixa några tillfälliga problem som orsakar error.

3. Be om hjälp

Om allt annat Misslyckas, då kan du behöva kontakta ditt webbhotell. Alla bra webbhotell för WordPress kommer att hjälpa dig att troubleshoota problemet, peka dig i rätt riktning eller till och med fixa det åt dig.

Du kan också anlita WordPress-utvecklare via en plattform som WPBeginner Pro Services för att hjälpa dig att lösa detta problem till rimliga priser. Vi har ett dedikerat team av expertutvecklare som du kan lita på för att lösa alla dina WordPress-problem.

WPBeginner Pro Services

Du kan också använda tjänsten för webbplatsunderhåll, reparation av hackad webbplats, hastighetsoptimering, ombyggnad av webbplats och SEO-optimering.

Vi hoppas att den här artikeln hjälpte dig att åtgärda problemet med ”Fel vid upprättande av en databasanslutning” i WordPress. Du kanske också vill se vår felsökningsguide för WordPress för tips om hur du löser WordPress-problem på egen hand eller vår handledning om hur du lägger till en anpassad databasfelsida i WordPress.

If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.

Avslöjande: Vårt innehåll stöds av våra läsare. Det innebär att om du klickar på några av våra länkar, kan vi tjäna en provision. Se hur WPBeginner finansieras, varför det är viktigt, och hur du kan stödja oss. Här är vår editoriala process.

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Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi with over 16 years of experience in WordPress, Web Hosting, eCommerce, SEO, and Marketing. Started in 2009, WPBeginner is now the largest free WordPress resource site in the industry and is often referred to as the Wikipedia for WordPress.

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Reader Interactions

665 kommentarerLämna ett svar

  1. Syed Balkhi

    Hey WPBeginner readers,
    Did you know you can win exciting prizes by commenting on WPBeginner?
    Every month, our top blog commenters will win HUGE rewards, including premium WordPress plugin licenses and cash prizes.
    You can get more details about the contest from here.
    Start sharing your thoughts below to stand a chance to win!

  2. Faran

    Thank God I found this article. Replacing wordpress database password and username with my cpanel login credentials got me through it.

  3. Adrian Ramos

    Thank you!

    i solved the problem by changing my new username and password in the wp-config file.

    Regards

  4. Paul

    Thank you very much!

  5. Giorgos

    Another solution that worked. Delete the current MySql user and add a new one. It’s a solution for this specific error:
    Access denied for user ‘foo’@’%’ (using password: YES)

  6. Derek Morrison

    Hi, Im a long way in to my blog with txt and pictures however, I am new to this and now finding my uploading of media is freezing 4/5 in and goes to error. Looking on the web found many others have had this problem, however, the common stream is increase image memory I’ve only used 115 MB what’s going on does anyone know? I’m very frustrated as I can try and try for HOURS sometimes to upload
    Thank you

  7. Paul Hutchinson

    Had this error pop up yesterday on my ten year old Wordpress installation that is hosted @ GoDaddy.

    Turns out GoDaddy changed the Hostname for the SQL server. updated the DB_Host value and all is working fine.

    Thanks for the detailed post about this issue.

  8. Bhavesh

    I do have same issue with GoDaddy, tried everything out from this post and others.

    but not get any result.

    After heading everything I just tried to change the user name as it was same as database name before.

    and the issue solved.

    so thought the issue is having database and username is same for the DB.

  9. Kaustav Banerjee

    Super effective article. It has just happened with me. The most common mistake of all is the difference between password set for database user from backend and the one mentioned in wp-config .How could I forget this…
    Thanks a lot!!

  10. alex.s

    One thing that needs to be mentioned that if you are using MAMP the password for the database is root as a default. This little thing took me hrs to figure out.

  11. Dlee

    Thanks for this guide, it really saved me! I changed my database password not realizing what would happen, I managed to fix it thanks to this guide though :)

  12. Dev

    If it helps, I would like to add that my particular problem occurred when I updated the password to my database through godaddy, and the wp-config file did NOT update the password, I had to go in manually to change it.

    /** MySQL database password */
    define(’DB_PASSWORD’, ’PasswordGoesHere);

    • Jesse Josserand

      I pretty much had to do everything above including changing the password in wp-config. After all that… and editing my sql backup I was restoring so that it used the correct db_name and username and password, as well, everything started work except for errors caused by problems with the super cache plugin. I’m still fighting that issue, but hallelujah to God and all y’all above for getting me this far!

  13. David Kley

    This is why we use Joomla more than Wordpress. ;)

    Easier to move, easier to set up quickly, easier to troubleshoot. Wordpress makes it a huge pain if you want to move your site to another server or change domains. To each their own though. Each has it’s own set of weaknesses.

  14. Bev

    I have the problem intermittently and randomly. It doesn’t stop the site from working entirely, the ’error establishing a database connection’ message shows up randomly (both backend and frontend). My host says the problem is a plugin conflict. I’d be happy to test that but because the problem is random, I can’t tell immediately if deactivating a plugin will help. Arrggh!

    • Steph

      We started having this issue recently as well. We contacted our host and they said it sounds like our database is either maxing its connections or our tables are locked during a call (which would most likely happen from a plugin).

  15. Tomas Hujer

    Hi, in my case it was been problem in bad domain values in table wp_blogs. There must be valid domains.

    Good Luck!

  16. Sreekant Shenoy

    Thanks you bro.. very very much..it workd.. :D I am very happy..luv you so much..I am on GoDaddy and i just placed the testfile.php and it workd..Thank you very much <3 <3 <3 <3

  17. Joel Donfak

    I had the same issue with a new website and I finally found that the MySQL username in the CPANEL was not linked to the database. After doing it, it work properly!

    So make sure the problem doesn’t come from there.

  18. Ed

    I changed my MySQL password for security reasons and updated it right away in wp-config but now I get the ”Error Establishing a Database Connection” on both front and back end. I know my login credentials work as I can connect fine to phpMyAdmin.

    – I tried a fresh re-install of Wordpress via FTP (without overwriting wp-config or wp-content folder) and that didn’t help.

    – I am trying to do the database repair method mentioned above but I can’t even access that page as it won’t let me get past the database connection error.

    – I tried the test connection method and get the following error:

    Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /srv/users/serverpilot/apps/xxxxxx/public/testconnection.php on line 2

    Warning: mysql_connect(): Access denied for user ’root’@’localhost’ (using password: YES) in /srv/users/serverpilot/apps/xxxxxxxx/public/testconnection.php on line 2
    Error: Access denied for user ’root’@’localhost’ (using password: YES)

    None of these solutions work! Please help someone! I haven’t touched my wordpress site or made any changes prior to the mySQL password update so I know it’s not a wordpress code or plugin issue. Would nginx or cache effect this?

    • dev

      Go to wp-config file and find this:

      /** MySQL database password */
      define(’DB_PASSWORD’, ’PasswordGoesHere’);

      Make sure the password matches what you use to log in to your database.

  19. Kyle Coombs

    So, I have always accessed WordPress via the internet and never downloaded the client onto my computer. I’ve always wondered why someone would want to do that and now I think I understand why after receiving this same error message.

    I’m curious, can I do any if I cannot access my WordPress account to make these changes listed? Or do I need to contact my host or hope that problem resolves itself?

    Just checking if there’s anything I can do on the front end.

  20. Dave_Whittle

    I had this error yesterday, and to make a long story short, the solution was as simple as restarting MySQL, i.e. issuing the following commands from the command line:

    sudo mysql stop
    sudo mysql start

  21. Shoaib

    Thanks this one helped me :)
    define(’DB_HOST’, ’127.0.0.1:8889’);

  22. mohadsl

    Hi, I have been reading this message over and over when I log in to another domain for my WordPress. Please help

    Error: Unable to find the specified administrator account in WordPress. Specify the username of your administrator’s account in WordPress. This account will be associated with Plesk.

  23. Kurtis

    I was trying to load my website (from backups) to a new hosting company today. It was tricky figuring out how to make it work. Ended up installing and uninstalling a bunch of times due to some mistakes. I first tried loading my wordpress files via FTP and creating a new Mysql database manually in my hosting control panel, but I could not get the two to see eachother and could not import my backed up SQL file to the new database, finally figured out (after some trial and error), i needed to install a fresh wordpress from my hosting control panel which installs wordpress for me and creates a database. Once there is a linked database you can drop all the tables, and import the backed up database. I would then upload my wordpress backup via FTP on top of the fresh install and choose ’Overwrite’. When it finished, I had the front page of my website showing up like it was working, but all the pages were ”object not found, no database, or page outdated, please notify the author, etc.”…. I tried repairing/optimizing the database, which did not help…. I updated my wp-config file with the right database info, which did not fix it….So I uninstalled everything and started over many times (uninstalling reinstalling with the same results — FINALLY WHAT WORKED. fresh wordpress install via my control panel, I used the same username password for the admin that I previously had used on my old site (this helped my new wordpress ”see the mysql backup” better once I imported it), then FTP the wordpress backup files on top of the fresh install with overwrite option. change the wp-config code to the new database info (mine was a new database name/pw everytime i reinstalled wordpress). After I did all of this I was getting the front page but still getting ”object not found” pages for everything else. BUT now I could login to my admin…. once I was at this point, I realized that wordpress or the server wass checking itself (updating itself) after all of the major changes I had made via FTP and MySQL…. basically just wait, I think I waited a half hour to an hour and I started seeing my other pages (without graphics), took a nap, and then all the pages were there. I only had a few pages and posts but after such major changes, the server had to catch up and verify itself, I think…

  24. Jhood

    Just wanted to share my experience – I received this error when I created my account in cPanel with a user name that was more than 8 characters long. Apparently it confused the Wordpress installer, and it couldn’t create the database.

    So I just deleted the entire Cpanel account and started over with a cPanel user name of 8 characters – worked like a charm!

  25. Sarah Baker

    I tried just about all these things and nothing worked – just about but not all. I’m not an expert but not a beginner. Finally, I decided to delete the account from the server (new site with no data yet), start over, and install Wordpress manually. I use Rochen which uses cPanel and Fantastico and it’s only been recently that I’ve been having this problem.

    Installing manually worked fine and I had no problems. Will be submitting a support ticket to Rochen for sure.

  26. Penina

    I built my site on an Amazon ec2 instance and frequently get the Error establishing database connection on both the frontend and backend. what I do that always solves the problem is telnet into the server and restart mysqld. But I was wondering what the underlying issue was that is always causing this error to recur. any ideas??

    • shaun2k

      You’re running out of RAM and memory management is killing your mysqld process. You will need to upgrade to an instance that has at least 2GB RAM. I’m tipping you’re on free tier and you have 1GB of RAM.

  27. KyleM

    For me what worked was changing localhost entry in wpconfig.php to 127.0.0.1; they may work with out doing all of the above so its a quick. I must say all this data above was a good start for me to understand the problem and root cause.

  28. Christina Torres

    Totally random, and maybe this is dumb, but I realized my problem on Mac was that it kept changing a regular ’ into a stylized one in text edit every time I added in my username, password, database name, etc, even as a text file. weird. anyway, thanks for the help!

  29. Colin Murphy

    Just incase other people have had the same issue you get this error also on a multisite installation if the URL’s in the wp_blogs are not set correctly . I had this issue this morning when moving the site from my dev version to staging.

  30. Jack Bobeck

    I just experienced it on our site, first time. So I did as you recommended, called Bluehost, our host provider to find out WTH? They said that our database is limited to 15 connections at once, and that because of activity, when you hit that ceiling, you get that error. So they suggested we run a test on all of our plugins and see if there are some that are hogging connections, then run a program that converts our pages to HTML pages as a backup, in case people want to access the site as a backup and do so in a quicker manner. I hope this makes sense, not an expert web guy, but just repeating best I can. But best thing to do first is contact your host provider for answers.

    Jack

  31. Ryan Turner

    I just had the same problem for my site. Went through the article and didn’t see anything out of the ordinary. messing around in wordpress I reset my ’WP Super Cache’ plugin to the defaults and cleared it out and my site started working again.

  32. Ali Khan

    Doesn’t let me sign into phpmyadmin from my cPanel, saying account is not verified.

  33. Daniel DeNewasha

    Intermittently I get the following error visiting the site. There’s absolutely nothing on major search engines with this error number alone. I can get to wp-admin, which is the sites login page with theme loaded, etc. and login. In Admin, I can do anything with no issues. Sometimes I can visit the site, other times not, even in different browsers, e.g., on refresh may or may not appear. Have done the repair and settings show no errors. I am on Godaddy shared hosting. Just finished building site so very little content, DB incredibly small 2mb on export.

    ”ERROR 677-402iqz. We’re sorry, error reading database, missing or
    corrupt. This website is no longer unavailable.”

    Any ideas anyone?
    Thanks
    Daniel

  34. WPBeginner Staff

    WordPress stores all your site’s information in a database, which is managed by a database server. If for some reason WordPress is unable to connect to the database server then you will get this error. Please contact your web hosting provider for support.

  35. terry

    I was trying to fix non appearance of widgets on my site when I got
    ”Could not connect to the DB Server!”
    . Even when I just enter the site in the address box or include wp-admin.
    I have no idea now. Just assume I am a 5 year old idiot if you reply.

  36. Syed Balkhi

    If you’re getting on a welcome screen, then it means that you replaced your database credentials.

  37. john

    Hi my site has been off since this morning telling me Error establishing a database connection in french since it is a french website http://c2cteaching.com
    I called my host who told me to modify my wp-config.php, and since we did I land on a welcome setting page of wordpress ! I’m getting crazy, what can i do ? help me please !

  38. Vijay

    Hi, I had this error show up on our primary domain, add-on domains and a sub-domain.

    I use GoDaddy for hosting.

    Long story short: We found that because for some reason the MySQL databases table inside hosting > databases didn’t have any users attached to the databases that the sites were showing this particular error.

    Just below that table on the right hand side, there is a ’Add User to Database’ section. I assigned each user to a database. So, i388299_wp1 was selected as user and i388299_wp1 was selected as the database and all the sites started working fine again.

    So, there is a bug in GoDaddy that causes users to be deleted from that list for some strange reason.

  39. karelles

    I was trying to clean up and tossed some mysql servers (they’re all one anyway) that I thought I wasn’t using and one of my site alarms went off. Sure enough that site was using the server that I tossed. Changed to a different server (as I said they’re all one) in the wp-config file and all was again well. Thanks!!!

  40. Vonnie Hudson

    I had this problem today on my VPS. Error establishing connection to Database. Checked disk space and confirmed it was fine but memory usage was almost depleted. I ran sudo free -m and top to find the biggest offenders but couldn’t really figure it out. I had something like 5MB of RAM left. I even rebooted the server but that didn’t fix it. So I just waited and eventually it came back – my only guess at this point is that my server was inundated with too much traffic. But it’s a VPS so I don’t know what’s going on. I hope this doesn’t happen again tomorrow –

    • random guy

      You need to get a fully managed cpanel VPS so that someone that knows what they are doing can assist you.

      When you have 5mb of ram left, you are stuffed. The server would be slowing down immensely. From here, upgrading the ram, or installing cpnigix, or having someone fine tune the VPS, can all reduce your ram usage and improve performance.

  41. rookie

    Thank you so much for your help.

    I am just a rookie that had to do this job.

    This helped me:

    1define(’DB_NAME’, ’database-name’);

    2define(’DB_USER’, ’database-username’);

    3define(’DB_PASSWORD’, ’database-password’);

    4define(’DB_HOST’, ’localhost’);

  42. Gorillaz

    I justed wanted to thank you very much.
    You saved my day.

  43. Luke

    I rebooted my server. Problem solved. You might want to mention that first in the article. Saves time, lol.

    Log into ubuntu 12.04 -> Reboot

    • Jack

      I had this same issue. I rebooted the server, problem resolved but wp-admin panel is running too much slow since i rebooted the server. Any idea?

  44. vanda

    I met a problem , I can’t go to front end it show the message that
    ”Error establishing a database connection” of my page I did it on localhost, what can I do?

  45. WPBeginner Staff

    Jacob, it seems like your database server is frequently down. Contact your web host or switch to a better WordPress Hosting provider.

    As for the facebook issue we will recommend you to use WordPress SEO by Yoast. Once it is activated go to SEO -> Social and check the box next to Add Open Graph meta data.

    • Aaron Winters

      I’m having same issue as Jacob had, but on my local install. In the time it takes to make an edit of any sort, I sporadically get sent to the ”Error establishing a database connection” page. (Only on Admin side) 1 in 5 times it actually forwards past it on its own and completes the update, otherwise I have to copy the entire post, paste over the old, submit over and over until it finally accepts. Also happens on image uploads. No problem on the remote host that I know of.

  46. Jacob Wall

    I get the error sporadically – only when I’m signed into my admin account. Although one blog reader did inform me that once it took her 4 attempts to load the main page. It never lasts long, but happens often (4 or 5 times a day?).

    Also, while I am writing blogs, I will often get a ”Connection to server lost” error, and then I have to wait for it to reconnect before I can save. As I said, it never lasts more than about 15 minutes, but often enough so it makes writing blog posts a very time consuming process.

    Finally, when I try to share on FB, the preview doesn’t show up – only a link. I have know idea if these three errors are related, but they seem to show up around the same time, and all three are too frequent.

  47. Deepika Arodhiya

    I have change my hosting. How to proceed? Getting error:

    Error establishing a database connection

  48. uvraj

    I have anothere issue here.. the posts are working fine. but in the main url, the error ”error establishing database connection” is appearing? Is there something with my theme? I am not able to figure it out…..

  49. JD

    Thank you! Appreciate the post. Worked for me, although had to do a combination of the methods stated!
    Thanks!

  50. zuecell

    all my wp on my host error :( should i check one by one :(

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