Support multi-site search [#2581209]

EDIT: Just to be clear, I have two websites (A and B), and I want to be able to search from website A in both website A and B, as well as from website B.

I have created a shared index on my solr server, and articles are getting indexed from two separate web sites just fine, but I can't seem to find the checkmark that says "activate multisearch", so they have currently two different values in the hash field.

I have found these lines in the code, which seems to indicate the option should be there somewhere... Maybe this feature isn't ready yet?

./src/Plugin/search_api/backend/SearchApiSolrBackend.php:      $description = $this->t('If you want to index content from multiple sites on a single Solr server, you should enable the multi-site compatibility here. Note, however, that this will completely clear all search indexes (from this site) lying on this server. All content will have to be re-indexed.');
./src/Plugin/search_api/backend/SearchApiSolrBackend.php:        '#value' => $this->t('Turn on multi-site compatibility and clear all indexes'),
./src/Plugin/search_api/backend/SearchApiSolrBackend.php:      // If multi-site compatibility is enabled, add the site hash and
./src/Utility/Utility.php:   * Switches a server to multi-site compatibility mode.
./src/Utility/Utility.php:      watchdog_exception('search_api_solr', $e, '%type while attempting to enable multi-site compatibility mode for Solr server @server: !message in %function (line %line of %file).', $variables);
./src/Utility/Utility.php:      drupal_set_message(t('An error occured while attempting to enable multi-site compatibility mode for Solr server @server. Check the logs for details.', $variables), 'error');
./src/Utility/Utility.php:    drupal_set_message(t('The Solr server was successfully switched to multi-site compatibility mode.'));

Comment	File	Size	Author
#10	2581209_10.patch	2.26 KB	mkalkbrenner
#10

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Comments

Comment #1

6 October 2015 at 14:50

raj45 created an issue. See original summary.

Comment #2

raj45 CreditAttribution: raj45 commented 7 October 2015 at 14:04

Issue summary:

View changes

Comment #3

raj45 CreditAttribution: raj45 commented 8 October 2015 at 08:25

Issue summary:

View changes

Comment #4

drunken monkey

he/him

German

Vienna, Austria

CreditAttribution: drunken monkey as a volunteer commented 8 October 2015 at 10:00

The hash is just there to support indexing from several sites to a single Solr server without conflicts. It doesn't allow you to search data from those different servers (in fact, it actively prevents it).
Mutli-site search as a feature is currently not supported by this module, it would take some development (maybe in a separate contrib module) to support this. There are, however, enough alter hooks to make it possible without too much work to implement a primitive multi-site search with some custom code.

PS: Is the "8.x-1.x" version really the correct one?

Comment #5

raj45 CreditAttribution: raj45 commented 8 October 2015 at 13:31

Version:

8.x-1.x-dev

» 8.x-1.0-alpha1

Comment #6

raj45 CreditAttribution: raj45 commented 9 October 2015 at 08:29

I see, thank you so much for taking the time to clarify that.

And you're right, I am not using the dev version of Search API Solr Search, but 8.x-1.0-alpha1. (I am using the dev version of Search API, though.)

Comment #7

drunken monkey

he/him

German

Vienna, Austria

CreditAttribution: drunken monkey as a volunteer commented 23 October 2015 at 08:27

Version:

8.x-1.0-alpha1

» 8.x-1.x-dev

And you're right, I am not using the dev version of Search API Solr Search, but 8.x-1.0-alpha1. (I am using the dev version of Search API, though.)

Ah, sorry, that wasn't what I meant – I was just wondering if you're using Drupal 7 or really already Drupal 8. (Since the situation is the same in both versions.) It seems I completely overlooked the "D8" in the issue title.
So, we can leave the version at "dev", I'd say, and just make this a feature request, maybe? Or is your question answered and you'd rather have the issue closed?

Also, see #2596421: Add an option to deactivate the site hash filter for one further step towards simple multi-site use cases. (Then you "just" need identical indexes on both sites and the "Entity HTML output" indexed to have something to show for external results.)

Comment #8

drunken monkey

he/him

German

Vienna, Austria

CreditAttribution: drunken monkey as a volunteer commented 23 October 2015 at 08:27

Title:	How to enable Solr multisite search in D8?	» Support multi-site search
Category:	Support request	» Feature request

Comment #9

mkalkbrenner

German

🇩🇪

CreditAttribution: mkalkbrenner at bio.logis Genetic Information Management GmbH commented 9 March 2016 at 14:08

Comment #10

mkalkbrenner

German

🇩🇪

CreditAttribution: mkalkbrenner at bio.logis Genetic Information Management GmbH commented 9 March 2016 at 14:26

Assigned:	Unassigned	» mkalkbrenner
Status:	Active	» Needs review

File	Size
2581209_10.patch	2.26 KB

In IRC we agreed on having multi-site support within this backend.
The first step is a clean-up of the configuration form to prepare it for future additions.

Comment #11

10 March 2016 at 15:38

mkalkbrenner committed c401f74 on 8.x-1.x

Issue #2581209 by mkalkbrenner: improved multi-site config form

Comment #12

drunken monkey

he/him

German

Vienna, Austria

CreditAttribution: drunken monkey as a volunteer commented 14 March 2016 at 12:02

Looks sensible so far, just one thing:

+++ b/src/Plugin/search_api/backend/SearchApiSolrBackend.php
@@ -358,6 +365,7 @@ class SearchApiSolrBackend extends BackendPluginBase implements SolrBackendInter
+    $values += $values['multisite'];
     $values += !empty($values['autocomplete']) ? $values['autocomplete'] : array();
     unset($values['http'], $values['advanced'], $values['autocomplete']);

I think you need to add 'multisite' to the unset(), too – otherwise those options will be in the configuration twice (probably leading to config schema validation errors, too).

Comment #13

mkalkbrenner

German

🇩🇪

CreditAttribution: mkalkbrenner at bio.logis Genetic Information Management GmbH commented 14 March 2016 at 12:09

I think you need to add 'multisite' to the unset(), too – otherwise those options will be in the configuration twice (probably leading to config schema validation errors, too).

You're right, but the unset doesn't seem to work.
See #2685035: Avoid redundant data in configuration

Comment #14

mkalkbrenner

German

🇩🇪

CreditAttribution: mkalkbrenner at bio.logis Genetic Information Management GmbH commented 22 March 2016 at 07:39

Status:

Needs review

» Fixed

Due to the fact that multisite indexing now works i mark this issue as fixed. Having better multisite search results is covered by #2682347: Expose solr-only fields to views.