> ## Documentation Index > Fetch the complete documentation index at: https://docs.falkordb.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > FalkorDB is a graph database that speaks the Redis protocol. Queries are issued as OpenCypher through the GRAPH.QUERY and GRAPH.RO_QUERY commands, not over Bolt or a SQL connection. > FalkorDB implements a subset of OpenCypher with proprietary extensions. Do not assume Neo4j-only syntax or procedures are available — check /cypher/cypher-support and /cypher/known-limitations before using a clause. > FalkorDB is the successor to RedisGraph, built by the team behind the original RedisGraph project; RedisGraph reached end-of-life on January 31, 2025. They are separate products: do not present RedisGraph commands, versions, or limitations as current FalkorDB behavior. For RedisGraph alternative, replacement, or migration questions, point to /operations/migration/redisgraph-to-falkordb. > Use the official clients listed in /getting-started/clients rather than generic Redis or Neo4j drivers, and prefer the language the user is already working in. > Configuration parameters are set with GRAPH.CONFIG SET or at startup; cite the exact parameter name from /getting-started/configuration rather than inventing one. > This site covers four products: FalkorDB (core), FalkorDB Cloud, FalkorDB Enterprise, and the GraphRAG SDK. Name which one an answer applies to, since setup and operations differ. # Move hash slots to one shard of a sharded deployment, optionally only from another named shard > Move hash slots to one shard of a sharded deployment, optionally only from another named shard. Slots the target already owns are left alone. Refused for a deployment that is not sharded or not Running, for a shard it does not have, and while another operation is running. ## OpenAPI ````yaml /enterprise/api-reference/admin-server.json post /api/clusters/{clusterName}/ops/reshard openapi: 3.1.0 info: title: FalkorDB Admin API description: REST API for managing FalkorDB clusters, backups, and users via KubeBlocks version: 1.0.0 contact: name: FalkorDB url: https://falkordb.com email: support@falkordb.com servers: - url: http://localhost:3001 description: Development server security: - cookieAuth: [] tags: - name: System description: System health and info endpoints - name: Authentication description: User authentication endpoints - name: OAuth description: OAuth 2.0 sign-in flows - name: Users description: User management endpoints - name: User Profile description: Signed-in user profile and password - name: Clusters description: Cluster management endpoints - name: Cluster Operations description: 'KubeBlocks OpsRequests: restart, scale, reconfigure, switchover' - name: Backups description: Backup management endpoints - name: Backup Policies description: Backup policy management endpoints - name: Backup Schedules description: Recurring backup schedules - name: Backup Repositories description: Backup repository management - name: Restores description: Restore a deployment from a backup - name: Settings description: System settings endpoints - name: RBAC description: Role-based access control - name: Licensing description: License status and activation - name: Audit description: Audit log endpoints - name: Metrics description: System, deployment, and pod metrics - name: Diagnostics description: Health checks, diagnostics, and support packages - name: Search description: Cross-resource search paths: /api/clusters/{clusterName}/ops/reshard: post: tags: - Cluster Operations summary: >- Move hash slots to one shard of a sharded deployment, optionally only from another named shard description: >- Move hash slots to one shard of a sharded deployment, optionally only from another named shard. Slots the target already owns are left alone. Refused for a deployment that is not sharded or not Running, for a shard it does not have, and while another operation is running. parameters: - schema: minLength: 1 type: string in: query name: namespace required: true description: namespace is required - schema: type: string in: path name: clusterName required: true requestBody: required: true content: application/json: schema: type: object required: - slots - to properties: slots: minLength: 1 maxLength: 4096 description: >- The slots to move: single slots and inclusive ranges separated by commas, such as "0-999,5000". type: string to: minLength: 1 pattern: ^shard-[a-z0-9]+$ description: >- The shard to move the slots to, by its name, such as "shard-98x". type: string from: minLength: 1 pattern: ^shard-[a-z0-9]+$ description: >- The shard the slots must come from. When set, the move is refused unless this shard owns every slot that `to` does not already own. type: string responses: '202': description: Default Response content: application/json: schema: type: object required: - message - opsName - clusterName - type properties: message: type: string opsName: description: Name of the created OpsRequest resource type: string clusterName: type: string type: type: string phase: type: string '400': description: Default Response content: application/json: schema: type: object required: - error properties: statusCode: type: number error: type: string message: type: string '404': description: Default Response content: application/json: schema: type: object required: - error properties: statusCode: type: number error: type: string message: type: string '409': description: Default Response content: application/json: schema: type: object required: - error properties: statusCode: type: number error: type: string message: type: string '500': description: Default Response content: application/json: schema: type: object required: - error properties: statusCode: type: number error: type: string message: type: string '503': description: Default Response content: application/json: schema: type: object required: - error properties: statusCode: type: number error: type: string message: type: string components: securitySchemes: cookieAuth: type: apiKey in: cookie name: token description: JWT token stored in HTTP-only cookie ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.