I have recently upgraded Sitecore 8.2 to 9.2
The Sitecore CMS (content tree) search does not return any values. It's using Lucene search. I performed a re-index but had no luck. What index does it use internally?
I have not yet configured XConnect but I don't think that could be the reason why it's not working.
Please anyone can help? I tried everything I could. Thanks.
Two things
It uses sitecore_master_index, By default if you just re-index it should start searching the data but in your case it is not happening
Can you check the logs and see if you are getting exception like below?
Exception: System.ArgumentNullException
Message: Value cannot be null.
Parameter name: key
Source: mscorlib
at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
at Sitecore.ContentSearch.ContentSearchManager.GetIndex(String name)
Or any other exceptions?
showconfig.aspx and double check the <index id="sitecore_master_index" and its configuration? I hope there is not excluded path or crawler path etc are proper?Let's check all of these and come back
Sitecore supports three different search engines: Solr, Azure Search, and Lucene. You must consider several factors, such as the purpose of the specific environment, your scaling requirements, and the hosting environment, when you choose a search engine.
Solr is the default search engine for content search and xConnect search for on-premise installations
Use Lucene only for a development or single server evaluation environment that runs Sitecore Experience Manager. You cannot use Lucene in a scaled environment. You can only use Lucene for content search. xConnect does not support Lucene. We do not recommend or support Lucene in a production environment.
Refer to the Sitecor document for more details.
It's recommended to use Solr as Support for the Lucene search engine is no longer included in Sitecore 9.3, and later
Hope this helps.
