( ! ) Warning: Search backend error during near_match search for '18.217.150.123' after 2. 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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0826	3553472	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1554	4381016	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1558	4434904	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1558	4435272	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.2998	5798112	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3063	5804368	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3063	5805120	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.3091	5820112	Hooks::run( )	../SearchEngine.php:231
12	0.3091	5821712	call_user_func_array ( )	../Hooks.php:209
13	0.3091	5822416	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.3095	5896472	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.3100	5942512	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3125	6177616	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3127	6209200	PoolCounterWork->execute( )	../Util.php:133
18	0.3128	6233456	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3128	6233640	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3128	6233712	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3128	6235648	PoolCounterWork->execute( )	../Util.php:129
22	0.3128	6236296	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3128	6236480	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3128	6236600	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3147	6350816	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3149	6354752	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3149	6355032	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3150	6356336	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3150	6356728	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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.3168	6280016	OutputPage->output( )	../MediaWiki.php:583
5	0.3170	6286472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3171	6287768	WebResponse->header( )	../OutputPage.php:2134
7	0.3171	6287912	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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.3168	6280016	OutputPage->output( )	../MediaWiki.php:583
5	0.3170	6286472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3177	6295800	WebResponse->header( )	../OutputPage.php:2171
7	0.3177	6295944	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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.3168	6280016	OutputPage->output( )	../MediaWiki.php:583
5	0.3170	6286472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3182	6295744	WebResponse->header( )	../OutputPage.php:2172
7	0.3182	6295888	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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.3168	6280016	OutputPage->output( )	../MediaWiki.php:583
5	0.3188	6295744	WebResponse->header( )	../OutputPage.php:2220
6	0.3188	6295888	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	235248	{main}( )	../index.php:0
2	0.0400	3377880	MediaWiki->run( )	../index.php:46
3	0.0401	3379288	MediaWiki->main( )	../MediaWiki.php:424
4	0.3168	6280016	OutputPage->output( )	../MediaWiki.php:583
5	0.3194	6295904	WebResponse->header( )	../OutputPage.php:2227
6	0.3194	6296048	header ( )	../WebResponse.php:37