Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Service Manager9.52

Upgrade > Introduction > Backup and backout instructions > Solr Search Engine

Solr Search Engine

To back out the KM upgrade, follow these steps:

Stop your Solr search engine.
Remove the existing search engine installation folder.
Copy the backup folder back.
Rollback the previous JDK installation and change the JAVA_HOME environment variable back.
Be sure to roll back KM related changes on the Service Manager server and application sides, including the kmsolr unloads files and the server's schemastub file.
Restart your Solr search engine.
Perform a full re-indexing on all of your knowledgebases.