Last day I upgraded my magneto site from 1.5 to 1.9.2.3. But after that Re-indexing and flush magento cache is not working. On Re-indexing it throws error 'Cannot initialize the indexer process.' and when try to flush magento cache logout action is working.
I had truncated catalog_product_index_price tables and executed repair query for my db. But no use.
Please suggest me a solution for these two issues.
Thanks in advance.