--data-binary @fess-documents.json
```

#### Index Settings Migration

Fess uses OpenSearch/Elasticsearch internally, so you can:

1. Export index mappings and settings from source
2. Apply custom analyzers in Fess's `fess_config.properties`
3. Create synonym dictionaries in Fess's dictionary directory

---

### Apache Solr

For migrating from Apache Solr:

#### Document Export and Import

    checkNotNull(elementFunction);
    checkNotNull(countFunction);
    return Collector.of(
        () -> TreeMultiset.create(comparator),
        (multiset, t) ->
            multiset.add(checkNotNull(elementFunction.apply(t)), countFunction.applyAsInt(t)),
        (multiset1, multiset2) -> {
          multiset1.addAll(multiset2);
          return multiset1;
        },

        }

        /* Create an NbtAddress for the local interface with
         * the name deduced above possibly with scope applied and
         * cache it forever.
         */
        localName = new Name(localHostname, 0x00, Config.getProperty("jcifs.smb1.netbios.scope", null));

        mac.update(type3);
        setMic(mac.digest());
    }

    /**
     * Creates a Type-3 message with the specified parameters.
     *
     * @param flags
     *            The flags to apply to this message.
     * @param lmResponse
     *            The LanManager/LMv2 response.
     * @param ntResponse
     *            The NT/NTLMv2 response.
     * @param domain

  - DaemonSet, Deployment, and ReplicaSet resources will no longer be served from `extensions/v1beta1`, `apps/v1beta1`, or `apps/v1beta2` in v1.16. Migrate to the `apps/v1` API, available since v1.9. Existing persisted data can be retrieved via the `apps/v1` API.

  - `priority_level_seat_count_samples` is replaced with `priority_level_seat_utilization`, which samples every nanosecond rather than every millisecond; the old metric conveyed utilization despite its name.
  - `priority_level_seat_count_watermarks` is removed.
  - `priority_level_request_count_samples` is replaced with `priority_level_request_utilization`, which samples every nanosecond rather than every millisecond; the old metric conveyed utilization despite its name.

   *     instead.
   */
  @InlineMe(replacement = "this.mightContain(input)")
  @Deprecated
  @Override
  public boolean apply(@ParametricNullness T input) {
    return mightContain(input);
  }

  /**
   * Puts an element into this {@code BloomFilter}. Ensures that subsequent invocations of {@link

   * before {@link Builder#build} is called, the builder is likely to perform better than an unsized
   * {@link #builder()} would have.
   *
   * <p>It is not specified if any performance benefits apply if {@code expectedSize} is close to,
   * but not exactly, the number of distinct elements added to the builder.
   *
   * @since 23.1
   */
  public static <E> Builder<E> builderWithExpectedSize(int expectedSize) {

     * from Jan 1, 1970 which is the same as that which is returned by the
     * {@code createTime()} method.
     *
     * This method does not apply to workgroups, servers, or shares.
     *
     * @param time the create time as milliseconds since Jan 1, 1970
     * @throws SmbException if an error occurs while setting the create time
     */

        },
        "dutch_keywords": {