For migrating from Apache Solr:

#### Document Export and Import

**Step 1: Export from Solr**

```bash
# Export Solr documents as JSON
curl "http://solr-server:8983/solr/collection1/select?q=*:*&rows=10000&wt=json" \
  -o solr-export.json
```

**Step 2: Transform to Fess Format**

Create a transformation script to map Solr fields to Fess fields:

```python
import json

# Load Solr export

				"application/vnd.wmc",
				"application/vnd.wmf.bootstrap",
				"application/vnd.wordperfect",
				"application/vnd.wqd",
				"application/vnd.wrq-hp3000-labelled",
				"application/vnd.wt.stf",
				"application/vnd.wv.csp+wbxml",
				"application/vnd.wv.csp+xml",
				"application/vnd.wv.ssp+xml",
				"application/vnd.xara",
				"application/vnd.xfdl",
				"application/vnd.xfdl.webform",

    </magic>
  </mime-type>
  <mime-type type="application/vnd.wqd">
    <glob pattern="*.wqd"/>
  </mime-type>
  <mime-type type="application/vnd.wrq-hp3000-labelled"/>
  <mime-type type="application/vnd.wt.stf">
    <glob pattern="*.stf"/>
  </mime-type>
  <mime-type type="application/vnd.wv.csp+wbxml"/>
  <mime-type type="application/vnd.wv.csp+xml"/>
  <mime-type type="application/vnd.wv.ssp+xml"/>