( ! ) Warning: Search backend error during near_match search for '3.15.26.221' after 19. Couldn't connect to host, Elasticsearch down? [Called from CirrusSearch\ElasticsearchIntermediary::failure in /var/www/w122_5/extensions/CirrusSearch/includes/ElasticsearchIntermediary.php at line 98] in /var/www/w122_5/includes/debug/MWDebug.php on line 300
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	0.1925	3553432	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3575	4380864	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3579	4434760	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3580	4435128	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.0689	5797552	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.1145	5803808	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.1145	5804560	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.1430	5819560	Hooks::run( )	../SearchEngine.php:231
12	1.1430	5821160	call_user_func_array ( )	../Hooks.php:209
13	1.1430	5821864	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.1448	5895896	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.1456	5941920	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.1970	6176976	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.1973	6208560	PoolCounterWork->execute( )	../Util.php:133
18	1.2174	6232816	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.2174	6233000	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.2174	6233072	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.2175	6235008	PoolCounterWork->execute( )	../Util.php:129
22	1.2175	6235656	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.2175	6235840	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.2175	6235960	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.2362	6350208	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.2364	6354144	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.2364	6354424	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.2774	6355728	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.2775	6356120	trigger_error ( )	../MWDebug.php:300

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	1.2794	6279432	OutputPage->output( )	../MediaWiki.php:583
5	1.2796	6285880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.2797	6287176	WebResponse->header( )	../OutputPage.php:2134
7	1.2797	6287320	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	1.2794	6279432	OutputPage->output( )	../MediaWiki.php:583
5	1.2796	6285880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.2804	6295208	WebResponse->header( )	../OutputPage.php:2171
7	1.2804	6295352	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	1.2794	6279432	OutputPage->output( )	../MediaWiki.php:583
5	1.2796	6285880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3227	6295152	WebResponse->header( )	../OutputPage.php:2172
7	1.3227	6295296	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	1.2794	6279432	OutputPage->output( )	../MediaWiki.php:583
5	1.3232	6295152	WebResponse->header( )	../OutputPage.php:2220
6	1.3232	6295296	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0000	235328	{main}( )	../index.php:0
2	0.0574	3377992	MediaWiki->run( )	../index.php:46
3	0.0574	3379400	MediaWiki->main( )	../MediaWiki.php:424
4	1.2794	6279432	OutputPage->output( )	../MediaWiki.php:583
5	1.3238	6295312	WebResponse->header( )	../OutputPage.php:2227
6	1.3238	6295456	header ( )	../WebResponse.php:37