Loosing product indexation after few days

[fuegonju]

Hi,

 

i've installed a Prestashop shop with 300.000 products and all it's ok until few days. Then i start to loose search results and finally i only can retrieve a few results. This only happens at 'public search', not admin product search. I suppose there is some problem indexing products. All becames ok when i reindex all products but seems something is going wrong if i have todo this every few days.

 

Can anyone explain what is happening? It's normal i have to reindex all products?

 

 

Thank you in advance!