Title: WordPress database error Duplicate entry ‘kjgrc_cache’
Last modified: August 19, 2016

---

# WordPress database error Duplicate entry ‘kjgrc_cache’

 *  [tomazo](https://wordpress.org/support/users/tomazo/)
 * (@tomazo)
 * [16 years ago](https://wordpress.org/support/topic/wordpress-database-error-duplicate-entry-kjgrc_cache/)
 * The blog is running on lighttpd with fcgi. I just woke up and it was down for
   several hours with “Internal error 500”. I checked lighttpd’s error log and found
   strange errors like these which I have no idea what they are supposed to mean.
   Any help?
 * 2010-05-28 10:53:06: (mod_fastcgi.c.2711) FastCGI-stderr: WordPress database 
   error Duplicate entry ‘kjgrc_cache’ for key ‘option_name’ for query INSERT INTO`
   wp_options` (`option_name`,`option_value`,`autoload`) VALUES (‘kjgrc_cache’,’
   a:2:{s:8:\”comments\”;s:2364:\”CTxsaT5MYXNoIG9uIDxhIGhyZWY9Imh0dHA6Ly9hZHVsdGJheS5vcmcvc2VlLWhlci1zcXVpcnQtYnJvb2tlLWxlZS1hZGFtcy8jY29tbWVudC0xMDQ3OTQiIHRpdGxlPSJTZWUgSGVyIFNxdWlydCAmIzgyMTE7IEJyb29rZSBMZWUgQWRhbXMsIE1heSAyOCwgMjAxMCI
   +U2VlIEhlciBTcXVpcnQgJiM4MjExOyBCcm9va2UgTGVlIEFkYW1zPC9hPjwvbGk+Cgk8bGk+TGFzaCBvbiA8YSBocmVmPSJodHRwOi8vYWR1bHRiYXkub3JnL21ycG92LXN1bm55LWxhbmUvI2NvbW1lbnQtMTA0NzkzIiB0aXRsZT0iTXJQT1YgJiM4MjExOyBTdW5ueSBMYW5lLCBNYXkgMjgsIDIwMTAiPk1yUE9WICYjODIxMTsgU3VubnkgTGFuZTwvYT48L2xpPgoJPGxpPldvb3Qgb24gPGEgaHJlZj0iaHR0cDovL2FkdWx0YmF5Lm9yZy9iaWctd2V0LWJ1dHRzLWFuZ2VsLWRhcmsvI2NvbW1lbnQtMTA0NzkxIiB0aXRsZT0iQmlnIFdldCBCdXR0cyAmIzgyMTE7IEFuZ2VsIERhcmssIE1heSAyOCwgMjAxMCI
   +QmlnIFdldCBCdXR0cyAmIzgyMTE7IEFuZ2VsIERhcms8L2E+PC9saT4KCTxsaT50ZXdqZSBvbiA8YSBocmVmPSJodHRwOi8vYWR1bHRiYXkub3JnL2tlbmRyYS1leHBvc2VkLyNjb21tZW50LTEwNDc5MCIgdGl0bGU9IktlbmRyYSBFeHBvc2VkLCBNYXkgMjgsIDIwMTAiPktlbmRyYSBFeHBvc2VkPC9hPjwvbGk
   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
   +PC9saT4KCTxsaT5MYXNoIG9uIDxhIGhyZWY9Imh0dHA6Ly9hZHVsdGJheS5vcmcvcHV0LWl0LWluLW15LWFzcy0yLyNjb21tZW50LTEwNDc4NiIgdGl0bGU9IlB1dCBJdCBJbiBNeSBBc3MgIyAyLCBNYXkgMjgsIDIwMTAiPlB1dCBJdCBJbiBNeSBBc3MgIyAyPC9hPjwvbGk
   +Cgk8bGk+dXBhbGxuaWdodCBvbiA8YSBocmVmPSJodHRwOi8vYWR1bHRiYXkub3JnL2xhdGluYS1yYW1wYWdlLWFyaWFuYS1mb3gvI2NvbW1lbnQtMTA0Nzg1IiB0aXRsZT0iTGF0aW5hIFJhbXBhZ2UgJiM4MjExOyBBcmlhbmEgRm94LCBNYXkgMjgsIDIwMTAiPkxhdGluYSBSYW1wYWdlICYjODIxMTsgQXJpYW5hIEZveDwvYT48L2xpPgoJPGxpPkF1ZGlvVGlnZXIgb24gPGEgaHJlZj0iaHR0cDovL2FkdWx0YmF5Lm9yZy93YW50b24td2hvcmluZy8jY29tbWVudC0xMDQ3ODQiIHRpdGxlPSJXYW50b24gV2hvcmluZywgU2VwdGVtYmVyIDYsIDIwMDkiPldhbnRvbiBXaG9yaW5nPC9hPjwvbGk
   +Cgk8bGk+Sy4gb24gPGEgaHJlZj0iaHR0cDovL2FkdWx0YmF5Lm9yZy9ibG93am9iZnJpZGF5cy1qYXlkZW4tamF5bWVzLyNjb21tZW50LTEwNDc4MyIgdGl0bGU9IkJsb3dqb2JmcmlkYXlzICYjODIxMTsgSmF5ZGVuIEpheW1lcywgTWF5IDI4LCAyMDEwIj5CbG93am9iZnJpZGF5cyAmIzgyMTE7IEpheWRlbiBKYXltZXM8L2E
   +PC9saT4K\”;s:10:\”trackbacks\”;s:1456:\”CTxsaT48YSBocmVmPSJodHRwOi8vYWR1bHRiYXkub3JnL2hvdXNld2lmZS0xLW9uLTEtMTYvI2NvbW1lbnQtOTk2NDAiIHRpdGxlPSJUcmFja2JhY2sgdG8gJnF1b3Q7SG91c2V3aWZlIDEgT24gMSAjIDE2JnF1b3Q7OiBDb250aW51ZSByZWFkaW5nIGhlcmU6IEhvdXNld2lmZSAxIE9uIDEgIyAxNiI
   +YWxsIGhvdCBzaGFyZSB5b3Ugd2FudDwvYT46IEhvdXNld2lmZSAxIE9uIDEgIyAxNjwvbGk+Cgk8bGk
   +PGEgaHJlZj0iaHR0cDovL2FkdWx0YmF5Lm9yZy93b21lbi1zZWVraW5nLXdvbWVuLTYyLyNjb21tZW50LTk5NjI5IiB0aXRsZT0iVHJhY2tiYWNrIHRvICZxdW90O1dvbWVuIFNlZWtpbmcgV29tZW4gIyA2MiZxdW90OzogRm9sbG93IHRoaXMgbGluazogV29tZW4gU2Vla2luZyBXb21lbiAjIDYyIj5hbGwgaG90IHNoYXJlIHlvdSB3YW50PC9hPjogV29tZW4gU2Vla2luZyBXb21lbiAjIDYyPC9saT4KCTxsaT48YSBocmVmPSJodHRwOi8vYWR1bHRiYXkub3JnL3N3ZWV0LWxhdGluYS1wdXNzeS8jY29tbWVudC05OTYyNiIgdGl0bGU9IlRyYWNrYmFjayB0byAmcXVvdDtTd2VldCBMYXRpbmEgUHVzc3kmcXVvdDs6IFNlZSB0aGUgYXJ0aWNsZSBoZXJlOiBTd2VldCBMYXRpbmEgUHVzc3kiPmFsbCBob3Qgc2hhcmUgeW91IHdhbnQ8L2E
   +OiBTd2VldCBMYXRpbmEgUHVzc3k8L2xpPgoJPGxpPjxhIGhyZWY9Imh0dHA6Ly9hZHVsdGJheS5vcmcveW91ci1ibGFjay1kaWNrLW15LXdoaXRlLWFzcy8jY29tbWVudC05OTYyMyIgdGl0bGU9IlRyYWNrYmFjayB0byAmcXVvdDtZb3VyIEJsYWNrIERpY2sgTXkgV2hpdGUgQXNzJnF1b3Q7OiBTZWUgdGhlIGFydGljbGUgaGVyZTogWW91ciBCbGFjayBEaWNrIE15IFdoaXRlIEFzcyI
   +YWxsIGhvdCBzaGFyZSB5b3Ugd2FudDwvYT46IFlvdXIgQmxhY2sgRGljayBNeSBXaGl0ZSBBc3M8L2xpPgoJPGxpPjxhIGhyZWY9Imh0dHA6Ly9hZHVsdGJheS5vcmcvZXZpbC1hbmFsLTExLyNjb21tZW50LTk1ODA5IiB0aXRsZT0iVHJhY2tiYWNrIHRvICZxdW90O0V2aWwgQW5hbCAjIDExJnF1b3Q7OiBEaXNjIDEgaGVyZSI
   +VGhlIEFkdWx0IEJheTwvYT46IEV2aWwgQW5hbCAjIDExPC9saT4K\”;}’,’yes’) made by require,
   require_once, include, include, get_recent_comments, kjgrc_cache, update_option,
   add_option
 * Active plugins:
    Akismet 2.2.8 All in One SEO Pack 1.6.10.1 Google XML Sitemaps
   3.2.3 Hyper Cache 2.6.3 WP-PageNavi 2.50

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Mark / t31os](https://wordpress.org/support/users/t31os_/)
 * (@t31os_)
 * [16 years ago](https://wordpress.org/support/topic/wordpress-database-error-duplicate-entry-kjgrc_cache/#post-1515358)
 * You missed a plugin from that list, the one causing the problem.
    [http://wordpress.org/extend/plugins/get-recent-comments/](http://wordpress.org/extend/plugins/get-recent-comments/)
 * Which is where the option `kjgrc_cache` comes from.
 *  Thread Starter [tomazo](https://wordpress.org/support/users/tomazo/)
 * (@tomazo)
 * [16 years ago](https://wordpress.org/support/topic/wordpress-database-error-duplicate-entry-kjgrc_cache/#post-1515368)
 * I double checked and it most certainly wasn’t listed in the plugin page of wp-
   admin.
    It was present on ftp though, so I deleted it. Hopefully it solves the
   problem.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘WordPress database error Duplicate entry ‘kjgrc_cache’’ is closed to 
new replies.

## Tags

 * [lighttpd](https://wordpress.org/support/topic-tag/lighttpd/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [tomazo](https://wordpress.org/support/users/tomazo/)
 * Last activity: [16 years ago](https://wordpress.org/support/topic/wordpress-database-error-duplicate-entry-kjgrc_cache/#post-1515368)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics