Cloudera Search is a service based on Apache Solr. It provides a distributed search engine service. Search engines are often expected to provide fast, interactive performance so it is important to allocate sufficient RAM to the Search service

If other resource intensive applications, such as Impala, are deployed on the same cluster, then use the resource management facilities available in Cloudera Manager for Search. In some cases, it may also be preferable to avoid colocating the Search service with other services.