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I am using Sitecore 9.2 and SOLR. We have huge content and multi-language environment. We would like to create separate SOLR core index for each of the language.

  • Is it possible?
  • If yes, please guide me how?
  • is this a SXA website? – Nikhil Kulkarni Dec 15 '19 at 21:32
  • No. Its not a SXA website. We are using Sitecore JSS. – Jitendra Dec 16 '19 at 7:17
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Sitecore OOTB uses two parameters for the crawler

  • Database - Database on which you want to perform the indexing
  • Root - the path of the Sitecore node

There is no parameter for the language in it, So OOTB it is not possible. However, you can perform this by creating your custom crawler by inheriting the OOTB crawler. You can do this by adding a new parameter and crawler type in the config. I am taking an example of the web database index here -

<locations hint="list:AddCrawler">
          <crawler type="xyz.Foundation.Indexing.CustomSitecoreItemCrawler, xyz.Foundation.Indexing">
            <Database>web</Database>
            <Root>/sitecore</Root>
            <LanguageName>your-lanague</LanguageName>
          </crawler>
        </locations>

and base on the lanague you can specifiy the index name such as "sitecore_web_en_us_index".

Next, you need to write a custom crawler code for this, you can inherit the SitecoreItemCrawler located in Sitecore.ContentSearch dll.

In your custom crawler, you need to set the language from the config -

public string LanguageName
    {
        get
        {
            if (!string.IsNullOrEmpty(this.language))
                return this.language;
            return (string)null;
        }
        set
        {
            this.language = value;
        }
    }

    public Language Language
    {
        get
        {
            Database master =
                Sitecore.Configuration.Factory.GetDatabase(this.database);
            return master.GetLanguages().Where(x => x.Name.ToLower() == this.language.ToLower())
                .FirstOrDefault();
        }
    }

and after that need to override the DoAdd function, by removing the foreach loop of indexable item languages and pass our language -

protected override void DoAdd(IProviderUpdateContext context, SitecoreIndexableItem indexable)
    {
        Assert.ArgumentNotNull((object)context, nameof(context));
        Assert.ArgumentNotNull((object)indexable, nameof(indexable));
        using (new LanguageFallbackItemSwitcher(new bool?(context.Index.EnableItemLanguageFallback)))
        {
            this.Index.Locator.GetInstance<IEvent>().RaiseEvent("indexing:adding", (object)context.Index.Name, (object)indexable.UniqueId, (object)indexable.AbsolutePath);
            if (!this.IsExcludedFromIndex(indexable, false))
            {
                Language language = this.Language;
                //foreach (Language language in indexable.Item.Languages)
                //{
                    Item obj1;
                    using (new WriteCachesDisabler())
                        obj1 = indexable.Item.Database.GetItem(indexable.Item.ID, language, Sitecore.Data.Version.Latest);
                    if (obj1 == null)
                    {
                        CrawlingLog.Log.Warn(string.Format("SitecoreItemCrawler : AddItem : Could not build document data {0} - Latest version could not be found. Skipping.", (object)indexable.Item.Uri), (Exception)null);
                    }
                    else
                    {
                        Item[] objArray1;
                        using (new WriteCachesDisabler())
                        {
                            Item[] objArray2;
                            if (obj1.IsFallback)
                                objArray2 = new Item[1] { obj1 };
                            else
                                objArray2 = obj1.Versions.GetVersions(false);
                            objArray1 = objArray2;
                        }
                        foreach (Item obj2 in objArray1)
                        {
                            SitecoreIndexableItem sitecoreIndexableItem = (SitecoreIndexableItem)obj2;
                            IIndexableBuiltinFields indexableBuiltinFields = (IIndexableBuiltinFields)sitecoreIndexableItem;
                            indexableBuiltinFields.IsLatestVersion = indexableBuiltinFields.Version == obj1.Version.Number;
                            this.Operations.Add((IIndexable)sitecoreIndexableItem, context, this.index.Configuration);
                        }
                    }
                //}
            }
            this.Index.Locator.GetInstance<IEvent>().RaiseEvent("indexing:added", (object)context.Index.Name, (object)indexable.UniqueId, (object)indexable.AbsolutePath);
        }
    }
| improve this answer | |
  • 1
    This is solving crawler problem more or less but how you will instruct Sitecore to use different index during it's searching in Content Editor, using Sitecore's Search API, ...? – Peter Procházka Dec 13 '19 at 9:46
  • Thanks Mahendra !!! will try and let you know here. – Jitendra Dec 13 '19 at 10:28
  • 1
    Good Point @PeterProcházka! , We don't need to change anything in Sitecore's master, web and core indexes crawler, they will use the same existing crawler. So for example, we need en-Us and en-Ca as language indexing then these will be additional indexes with "sitecore_master_index", "Sitecore_web_index" and "Sitecore_code_index". A new patch file for "Sitecore_master_en_us_index" and "Sitecore_master_en_ca_index" and similar for the web database – Mahendra Shekhawat Dec 13 '19 at 12:40

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