> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Indexes in Milvus Jobs

export const schema = {
  "type": "object",
  "title": "Create Indexes in Milvus",
  "description": "Creates vector search indexes for specified Milvus collections using the configured index type and parameters. Configure each index in the `indexes-list` array with the target collection name, index type, and tuning parameters.",
  "required": ["id", "type"],
  "properties": {
    "id": {
      "type": "string",
      "title": "Job ID",
      "description": "Sets the unique identifier for this job, used to reference it in the API. Allowed characters: a-z, A-Z, dash (`-`), and underscore (`_`). Must start with a letter.",
      "maxLength": 63,
      "pattern": "[a-zA-Z][_\\-a-zA-Z0-9]*[a-zA-Z0-9]?"
    },
    "sparkConfig": {
      "type": "array",
      "title": "Additional parameters",
      "description": "Injects additional key-value pairs into the training JSON map at runtime. String values must be wrapped in quotes. Use this to pass custom parameters not exposed in the UI.",
      "hints": ["advanced"],
      "items": {
        "type": "object",
        "required": ["key"],
        "properties": {
          "key": {
            "type": "string",
            "title": "Parameter Name"
          },
          "value": {
            "type": "string",
            "title": "Parameter Value"
          }
        }
      }
    },
    "writeOptions": {
      "type": "array",
      "title": "Write Options",
      "description": "Sets additional key-value options passed to the Spark writer when writing output to Solr or other sinks. Use entries like `commitWithin=10000` to control Solr commit behavior.",
      "hints": ["advanced"],
      "items": {
        "type": "object",
        "required": ["key"],
        "properties": {
          "key": {
            "type": "string",
            "title": "Parameter Name"
          },
          "value": {
            "type": "string",
            "title": "Parameter Value"
          }
        }
      }
    },
    "readOptions": {
      "type": "array",
      "title": "Read Options",
      "description": "Sets additional key-value options passed to the Spark reader when loading input from Solr or other sources. Use these to configure connector-specific behavior.",
      "hints": ["advanced"],
      "items": {
        "type": "object",
        "required": ["key"],
        "properties": {
          "key": {
            "type": "string",
            "title": "Parameter Name"
          },
          "value": {
            "type": "string",
            "title": "Parameter Value"
          }
        }
      }
    },
    "indexes-list": {
      "type": "array",
      "title": "Indexes",
      "description": "Defines the list of Milvus indexes to create, each referencing a collection and specifying the index type and tuning parameters. Each entry must specify at least the collection name and index type.",
      "items": {
        "type": "object",
        "required": ["milvusCollectionName", "indexType"],
        "properties": {
          "milvusCollectionName": {
            "type": "string",
            "title": "Collection Name",
            "description": "Specifies the name of the Milvus collection in which to create the index. The collection must already exist. Run the Create Collections job first if the collection has not been created."
          },
          "indexType": {
            "type": "string",
            "title": "Index Type",
            "description": "Selects the index type to create for the specified Milvus collection. Choose `HNSW` for graph-based approximate search or `IVF` variants for centroid-based search. `FLAT` performs exact search with no index.",
            "enum": ["FLAT", "IVFLAT", "IVF_SQ8", "RNSG", "IVF_SQ8H", "IVF_PQ", "HNSW", "ANNOY"],
            "default": "HNSW"
          },
          "indexParams": {
            "type": "array",
            "title": "Index Parameters",
            "description": "Sets the index-specific tuning parameters as key-value pairs. For `HNSW`, use `M` and `efConstruction`. For IVF indexes, use `nlist` set to approximately 4×sqrt(number of vectors).",
            "items": {
              "type": "object",
              "properties": {
                "key": {
                  "type": "string",
                  "title": "Milvus Index Param",
                  "description": "Specifies the name of the Milvus index parameter to set, such as `M` or `efConstruction` for HNSW indexes, or `nlist` for IVF indexes."
                },
                "value": {
                  "type": "integer",
                  "title": "Value",
                  "description": "Sets the integer value for the corresponding Milvus index parameter. For example, `M=36` and `efConstruction=500` are good starting values for an HNSW index."
                }
              }
            }
          }
        }
      }
    },
    "type": {
      "type": "string",
      "title": "Spark Job Type",
      "enum": ["argo-milvus-create-indexes"],
      "default": "argo-milvus-create-indexes",
      "hints": ["readonly"]
    }
  },
  "additionalProperties": true,
  "category": "Other",
  "categoryPriority": 1
};

export const SchemaParamFields = ({schema}) => {
  const sanitize = str => {
    if (typeof str !== "string") return str;
    return str.replace(/^"(.*)"$/s, "$1").replace(/\\/g, "").replace(/"/g, "'");
  };
  const renderMd = str => {
    const s = sanitize(str);
    const text = (/[.!?]\)*$/).test(s) ? s : `${s}.`;
    return text.split(/(\*\*[^*]+\*\*|_[^_]+_|`[^`]+`)/g).map((part, i) => {
      if (part.startsWith("**")) return <strong key={i}>{part.slice(2, -2)}</strong>;
      if (part.startsWith("_")) return <em key={i}>{part.slice(1, -1)}</em>;
      if (part.startsWith("`")) return <code key={i}>{part.slice(1, -1)}</code>;
      return part;
    });
  };
  const {description, properties = {}, required: requiredProps = []} = schema;
  const visibleProps = useMemo(() => Object.entries(properties).filter(([, prop]) => !prop.hints?.includes("hidden")), [properties]);
  const renderProp = ([name, prop]) => {
    const isRequired = requiredProps.includes(name);
    const hasDefault = prop.default !== undefined;
    const rawDefault = prop.default;
    const hints = prop.hints || [];
    const isComplexDefault = hasDefault && (typeof rawDefault === "object" || typeof rawDefault === "string" && (rawDefault.length > 20 || rawDefault.includes('"')));
    const postBadges = [];
    if (prop.title) {
      postBadges.push(<><span className="text-stone-400 dark:text-stone-500">API property: </span>{name}</>);
    }
    const constraints = [];
    if (prop.minimum !== undefined && prop.maximum !== undefined) {
      constraints.push(`Range: ${prop.minimum} – ${prop.maximum}`);
    } else if (prop.minimum !== undefined) {
      constraints.push(`Min: ${prop.minimum}`);
    } else if (prop.maximum !== undefined) {
      constraints.push(`Max: ${prop.maximum}`);
    }
    if (prop.minLength !== undefined && prop.maxLength !== undefined) {
      constraints.push(`Length: ${prop.minLength} – ${prop.maxLength}`);
    } else if (prop.minLength !== undefined) {
      constraints.push(`Min length: ${prop.minLength}`);
    } else if (prop.maxLength !== undefined) {
      constraints.push(`Max length: ${prop.maxLength}`);
    }
    const fieldProps = {
      key: name,
      body: prop.title || name,
      type: prop.type,
      ...postBadges.length > 0 && ({
        post: postBadges
      }),
      ...isRequired && ({
        required: true
      }),
      ...!isComplexDefault && hasDefault ? {
        default: sanitize(String(rawDefault))
      } : {}
    };
    const isObject = prop.type === "object" && prop.properties;
    const isArrayOfObjects = prop.type === "array" && prop.items?.type === "object" && prop.items.properties;
    return <ParamField {...fieldProps}>
        {prop.description && <p>{renderMd(prop.description)}</p>}

        {prop.enum && <p>
            Allowed values: 
            {prop.enum.map((v, i) => <>{i > 0 && ", "}<code key={i}>{String(v)}</code></>)}
          </p>}

        {constraints.length > 0 && <p className="text-stone-500 dark:text-stone-400 text-sm">
            {constraints.join(" · ")}
          </p>}

        {isComplexDefault && <div className="flex">
            <p>
              <strong>Default:</strong>
            </p>
            <pre className="!my-0">
              <code>
                {JSON.stringify(rawDefault, null, 2)}
              </code>
            </pre>
          </div>}

        {isArrayOfObjects && <Expandable title="item properties">
            <SchemaParamFields schema={{
      properties: prop.items.properties,
      required: prop.items.required
    }} />
          </Expandable>}

        {isObject && <Expandable title="properties">
            <SchemaParamFields schema={{
      properties: prop.properties,
      required: prop.required
    }} />
          </Expandable>}
      </ParamField>;
  };
  return <div>
      {description && <p>{renderMd(description)}</p>}

      {visibleProps.map(renderProp)}
    </div>;
};

export const LwTemplate = ({title = "Key questions to get you started", icon = "sparkles", cta = "Powered by Agent Studio", linkHref = "https://lucidworks.com/demo/?utm_source=docs&utm_medium=referral&utm_campaign=docs_cta_ai"}) => {
  const [isLoaded, setIsLoaded] = useState(false);
  useEffect(() => {
    const timer = setTimeout(() => {
      setIsLoaded(true);
    }, 500);
    return () => clearTimeout(timer);
  }, []);
  return <div className="lw-template-container">
      <Card title={title} icon={icon}>
        {isLoaded && <span dangerouslySetInnerHTML={{
    __html: `<lw-template id="a029c1a9-28be-427e-b0e1-5d918920246a"></lw-template
            >`
  }} />}
        <Link href={linkHref} className="agent-studio-link text-left text-gray-600 gap-2 dark:text-gray-400 text-sm font-medium flex flex-row items-center hover:text-primary dark:hover:text-primary-light group-hover:text-primary group-hover:dark:text-primary-light">Powered by Lucidworks Agent Studio</Link>
      </Card>
    </div>;
};

[localhost link]: http://localhost:3000/docs/5/fusion/reference/config-ref/jobs/create-indexes-in-milvus

[mintlify link]: https://doc.lucidworks.com/docs/5/fusion/reference/config-ref/jobs/create-indexes-in-milvus

[old doc.lw link]: https://doc.lucidworks.com/fusion/5.9/10916

Creates indexes for specified collections in [Milvus](/docs/5/fusion/intro/fusion-stack/milvus).

<LwTemplate />

## Configuration properties

<SchemaParamFields schema={schema} />