nt .nav-treeview .nav-treeview{border-left:.2rem solid}.nav-flat.nav-child-indent .nav-treeview .nav-treeview .nav-icon{margin-left:1.15rem}.nav-flat.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-icon{margin-left:1.45rem}.nav-flat.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-icon{margin-left:1.75rem}.nav-flat.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-icon{margin-left:2.05rem}.sidebar-collapse .na...

							<i class="fa fa-search" aria-hidden="true"></i>
						</button>
					</div>
				</div>
			</form>
		</c:if>
		<nav class="mt-2">

		<ul class="nav nav-pills nav-sidebar flex-column" data-widget="treeview" role="menu">
			<li class="nav-header"><la:message key="labels.sidebar.menu" /></li>
			<c:if test="${fe:permission('admin-dashboard-view')}">
				<li class="nav-item">

.nav-flat.nav-sidebar.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-icon,\n.sidebar-mini .main-sidebar.sidebar-focused .nav-flat.nav-sidebar.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-icon,\n.sidebar-mini-md .main-sidebar.sidebar-focused .nav-flat.nav-sidebar.nav-child-indent .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-treeview .nav-icon,\n.sidebar-mini-xs .main-sidebar.sidebar-focused .nav-fla...

- Check query formatting and filters
- Verify analyzer configurations

**Performance Issues**
- Increase thread pool size in SuggesterBuilder
- Optimize batch sizes for indexing operations
- Review OpenSearch cluster performance

**Memory Usage**
- Configure appropriate JVM heap settings
- Monitor index sizes and optimize mappings
- Use streaming for large data imports

### Debug Logging

---

## Migration Checklist

Use this checklist to ensure a complete migration:

### Pre-Migration

- [ ] Assess current search system (document count, size, sources)
- [ ] Review infrastructure requirements
- [ ] Install and configure Fess (version: ______)
- [ ] Install compatible OpenSearch/Elasticsearch
- [ ] Backup current search system configuration
- [ ] Backup current search indices/documents