Magento – Magento Category Products reindex error – Integrity constraint violation

categorycategory-productsproductreindex

I recently upgraded a magento from 1.5 to 1.9 and everything is working except for reindexing of Category Products.

On the admin backend, I just get a general error that the process has failed.

so, I did it via command line using the shell/indexer.php and this is the output:

[www-data@DevServer shell]$ php -f indexer.php reindexall
Product Attributes index was rebuilt successfully in 00:00:20
Product Prices index was rebuilt successfully in 00:00:06
Catalog URL Rewrites index was rebuilt successfully in 00:02:59
Category Products index process unknown error:
exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`dev_salveo`.`catalog_category_product_index`, CONSTRAINT `FK_CAT_CTGR_PRD_IDX_CTGR_ID_CAT_CTGR_ENTT_ENTT_ID` FOREIGN KEY (`category_id`) REFERENCES `catalog_category_entity` (`entity_id`) ON )' in /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Statement/Pdo.php:228
Stack trace:
#0 /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Statement/Pdo.php(228): PDOStatement->execute(Array)
#1 /home/www-data/dev.my-domain.co.uk/public_html/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array)
#2 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#3 /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute(Array)
#4 /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('INSERT INTO `ca...', Array)
#5 /home/www-data/dev.my-domain.co.uk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Abstract->query('INSERT INTO `ca...', Array)
#6 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(179): Varien_Db_Adapter_Pdo_Mysql->query('INSERT INTO `ca...')
#7 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Helper/Mysql4.php(49): Mage_Index_Model_Resource_Abstract->insertFromSelect(Object(Varien_Db_Select), 'catalog_categor...', Array, false)
#8 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(153): Mage_Index_Model_Resource_Helper_Mysql4->insertData(Object(Mage_Catalog_Model_Resource_Category_Indexer_Product), Object(Varien_Db_Select), 'catalog_categor...', Array, false)
#9 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(113): Mage_Index_Model_Resource_Abstract->insertFromTable('catalog_categor...', 'catalog_categor...', false)
#10 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Catalog/Model/Resource/Category/Indexer/Product.php(935): Mage_Index_Model_Resource_Abstract->syncData()
#11 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Indexer/Abstract.php(143): Mage_Catalog_Model_Resource_Category_Indexer_Product->reindexAll()
#12 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Process.php(212): Mage_Index_Model_Indexer_Abstract->reindexAll()
#13 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Process.php(260): Mage_Index_Model_Process->reindexAll()
#14 /home/www-data/dev.my-domain.co.uk/public_html/shell/indexer.php(167): Mage_Index_Model_Process->reindexEverything()
#15 /home/www-data/dev.my-domain.co.uk/public_html/shell/indexer.php(215): Mage_Shell_Compiler->run()
#16 {main}

Next exception 'Zend_Db_Statement_Exception' with message 'SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`dev_salveo`.`catalog_category_product_index`, CONSTRAINT `FK_CAT_CTGR_PRD_IDX_CTGR_ID_CAT_CTGR_ENTT_ENTT_ID` FOREIGN KEY (`category_id`) REFERENCES `catalog_category_entity` (`entity_id`) ON ), query was: INSERT INTO `catalog_category_product_index` (`category_id`, `product_id`, `position`, `is_parent`, `store_id`, `visibility`) SELECT `catalog_category_product_index_idx`.`category_id`, `catalog_category_product_index_idx`.`product_id`, `catalog_category_product_index_idx`.`position`, `catalog_category_product_index_idx`.`is_parent`, `catalog_category_product_index_idx`.`store_id`, `catalog_category_product_index_idx`.`visibility` FROM `catalog_category_product_index_idx` ON DUPLICATE KEY UPDATE `category_id` = VALUES(`category_id`), `product_id` = VALUES(`product_id`), `position` = VALUES(`position`), `is_parent` = VALUES(`is_parent`), `store_id` = VALUES(`store_id`), `visibility` = VALUES(`visibility`)' in /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Statement/Pdo.php:235
Stack trace:
#0 /home/www-data/dev.my-domain.co.uk/public_html/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array)
#1 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#2 /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute(Array)
#3 /home/www-data/dev.my-domain.co.uk/public_html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('INSERT INTO `ca...', Array)
#4 /home/www-data/dev.my-domain.co.uk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Abstract->query('INSERT INTO `ca...', Array)
#5 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(179): Varien_Db_Adapter_Pdo_Mysql->query('INSERT INTO `ca...')
#6 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Helper/Mysql4.php(49): Mage_Index_Model_Resource_Abstract->insertFromSelect(Object(Varien_Db_Select), 'catalog_categor...', Array, false)
#7 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(153): Mage_Index_Model_Resource_Helper_Mysql4->insertData(Object(Mage_Catalog_Model_Resource_Category_Indexer_Product), Object(Varien_Db_Select), 'catalog_categor...', Array, false)
#8 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Resource/Abstract.php(113): Mage_Index_Model_Resource_Abstract->insertFromTable('catalog_categor...', 'catalog_categor...', false)
#9 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Catalog/Model/Resource/Category/Indexer/Product.php(935): Mage_Index_Model_Resource_Abstract->syncData()
#10 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Indexer/Abstract.php(143): Mage_Catalog_Model_Resource_Category_Indexer_Product->reindexAll()
#11 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Process.php(212): Mage_Index_Model_Indexer_Abstract->reindexAll()
#12 /home/www-data/dev.my-domain.co.uk/public_html/app/code/core/Mage/Index/Model/Process.php(260): Mage_Index_Model_Process->reindexAll()
#13 /home/www-data/dev.my-domain.co.uk/public_html/shell/indexer.php(167): Mage_Index_Model_Process->reindexEverything()
#14 /home/www-data/dev.my-domain.co.uk/public_html/shell/indexer.php(215): Mage_Shell_Compiler->run()
#15 {main}
Catalog Search Index index was rebuilt successfully in 00:00:24
Stock Status index was rebuilt successfully in 00:00:00
Tag Aggregation Data index was rebuilt successfully in 00:00:00

Any idea what this error means? how can I fix it?

Best Answer

The meaning of the error is "A value for a foreign key is being added or updated in the index table although the record doesn't exists in the main table".

Make sure to back up the database first and the follow this link for the soul

Related Solutions

Magento – Magento 1.8 reindex all

The catalog_product_index_eav table has a foreign key contraint named

FK_CAT_PRD_IDX_EAV_ENTT_ID_CAT_PRD_ENTT_ENTT_ID

Looking at this table's definition

CREATE TABLE `catalog_product_index_eav` (
  `entity_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT 'Entity ID',
  `attribute_id` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT 'Attribute ID',
  `store_id` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT 'Store ID',
  `value` int(10) unsigned NOT NULL DEFAULT '0' COMMENT 'Value',
  PRIMARY KEY (`entity_id`,`attribute_id`,`store_id`,`value`),
  KEY `IDX_CATALOG_PRODUCT_INDEX_EAV_ENTITY_ID` (`entity_id`),
  KEY `IDX_CATALOG_PRODUCT_INDEX_EAV_ATTRIBUTE_ID` (`attribute_id`),
  KEY `IDX_CATALOG_PRODUCT_INDEX_EAV_STORE_ID` (`store_id`),
  KEY `IDX_CATALOG_PRODUCT_INDEX_EAV_VALUE` (`value`),
  CONSTRAINT `FK_CATALOG_PRODUCT_INDEX_EAV_STORE_ID_CORE_STORE_STORE_ID` FOREIGN KEY (`store_id`) REFERENCES `core_store` (`store_id`) ON DELETE CASCADE ON UPDATE CASCADE,
  CONSTRAINT `FK_CAT_PRD_IDX_EAV_ATTR_ID_EAV_ATTR_ATTR_ID` FOREIGN KEY (`attribute_id`) REFERENCES `eav_attribute` (`attribute_id`) ON DELETE CASCADE ON UPDATE CASCADE,
  CONSTRAINT `FK_CAT_PRD_IDX_EAV_ENTT_ID_CAT_PRD_ENTT_ENTT_ID` FOREIGN KEY (`entity_id`) REFERENCES `catalog_product_entity` (`entity_id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='Catalog Product EAV Index Table';

we can see the foreign key definition is

CONSTRAINT `FK_CAT_PRD_IDX_EAV_ENTT_ID_CAT_PRD_ENTT_ENTT_ID` 
FOREIGN KEY (`entity_id`) 
REFERENCES `catalog_product_entity` (`entity_id`) 
ON DELETE CASCADE ON UPDATE CASCADE

This means for every entity_id row in catalog_product_index_eav, there needs to be an identical, corresponding entity_id value in catalog_product_entity.

The root of your problem is for some reason (either a rouge extension, errors caused by randomly typing in SQL from the internet, or performing data updates with disabled indexes), Magento's indexing attempts to update data in catalog_product_index_eav that violates this rule. The next step is identifying what Magento's doing so you can fix the data.

If we look at your call stack, this looks like a good place to start debugging

#10 app/code/core/Mage/Catalog/Model/Resource/Product/Indexer/Eav/Abstract.php(54): 
Mage_Index_Model_Resource_Abstract->syncData()

Jumping to that source file, we see the following bit of code

public function syncData()
{
    $this->beginTransaction();
    try {
        /**
         * Can't use truncate because of transaction
         */
        $this->_getWriteAdapter()->delete($this->getMainTable());
        $this->insertFromTable($this->getIdxTable(), $this->getMainTable(), false);
        $this->commit();
    } catch (Exception $e) {
        $this->rollBack();
        throw $e;
    }
    return $this;
}

As part of its indexing process, Magento tries to sync data from an "index table" (getIdxTable), to a "source" (getMainTable) table.

public function insertFromTable($sourceTable, $destTable, $readToIndex = true)
{
    //...
}

For this particular index, the index table is catalog_product_index_eav_idx, and the source table is catalog_product_index_eav.

Note: Be careful with your terminology around here, things are confusingly named. The "Source" table is the table we're copying to. (I believe it's called the source table because it's the "source" a normal Magento system will query from when it needs information)

So, Magento is trying to sync a row from catalog_product_index_eav_idx to the table catalog_product_index_eav. However, this causes the previously mentioned foreign key error. This leads us to two possible conclusions

The catalog_product_index_eav_idx has entity_id rows that do not exist in catalog_product_entity.
The catalog_product_index_eav table has (through previous manipulation with index checks turned off) entity_id rows that do not exist in catalog_product_entity.

So, your mission here is to figure out which entity_id rows in catalog_product_index_eav and catalog_product_index_eav_idx don't exist in catalog_product_entity, and manually delete said rows (from catalog_product_index_eav and catalog_product_index_eav_idx).

If it were me, and my catalog_product_entity table wasn't too large, I'd start with the following queries (these are untested, as I don't have any Magento tables with the above invalid data states)

SELECT * 
FROM catalog_product_index_eav_idx 
WHERE NOT (entity_id IN (SELECT entity_id from catalog_product_entity));

SELECT * FROM catalog_product_index_eav 
WHERE NOT (entity_id IN (SELECT entity_id from catalog_product_entity));

Good luck!

Magento 1.7 – Programmatically Save Related Products

Use catalog_product_save_before... and update the code so it doesn't end up in an infinite loop.

$product=$observer->getProduct();
$id=52;
$data=array(
            $id=>array(
                'position'=>2
            )
        );
$product->setRelatedLinkData($data);

Best Answer

Related Solutions

Magento – Magento 1.8 reindex all

Magento 1.7 – Programmatically Save Related Products

Related Topic