I created 300 filterable and Sort able Attribute in Magento. I also Enabled Flat category option in Catlog. But When I Indexed The New Added Product It says. The Flat Catalog module has a limit of 64 filterable and/or sortable attributes. Currently there are 329 of them. Please reduce the number of filterable/sortable attributes in order to use this module when I disable Flat Category of Product it working fine. How can Solved this issue.

1 Answer 1


In config.xml of the Mage_Catalog module there is this: <max_index_count>64</max_index_count>. You can try to increase this limit, but I don't know the implications.
You can do that by adding this in the config.xml from any one of your modules inside the <global> tag.

  • I got this error Cannot initialize the indexer process. when indexing product
    – Deepak Rai
    Commented May 2, 2015 at 12:07
  • @DeepakRai try stopping MySQL deleting the files in your /var/locks , start MySQL and reindex.
    – SR_Magento
    Commented Jun 20, 2015 at 12:18

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