We have use for magento 1.8. Initially site was working fine. But in couple of weeks, we faced the some problems. Suddenly website is down. Once its restart the server, the website is working. And check with my support team they said site use high memory usage. We have 16 gb ram and 1tb hdd.
And we have around 9000 products and 100 product attributes and 60 categories around.
Please advise for this issue.