( ! ) Warning: Search backend error during near_match search for '18.188.104.76' after 8. 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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.0215	3551440	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0359	4379048	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0363	4432944	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0364	4433312	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0791	5794768	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0840	5801024	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0840	5801776	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0861	5816776	Hooks::run( )	../SearchEngine.php:231
12	0.0862	5818376	call_user_func_array ( )	../Hooks.php:209
13	0.0862	5819080	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0867	5893128	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0874	5939152	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0907	6174256	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0910	6207032	PoolCounterWork->execute( )	../Util.php:133
18	0.0912	6231504	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0912	6231688	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0912	6231760	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0912	6233728	PoolCounterWork->execute( )	../Util.php:129
22	0.0913	6234376	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0913	6234560	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0913	6234680	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0996	6348968	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0998	6352904	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0998	6353184	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0999	6354488	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0999	6354880	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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.1040	6278096	OutputPage->output( )	../MediaWiki.php:583
5	0.1043	6284552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1044	6285848	WebResponse->header( )	../OutputPage.php:2134
7	0.1044	6285992	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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.1040	6278096	OutputPage->output( )	../MediaWiki.php:583
5	0.1043	6284552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1057	6293880	WebResponse->header( )	../OutputPage.php:2171
7	0.1057	6294024	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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.1040	6278096	OutputPage->output( )	../MediaWiki.php:583
5	0.1043	6284552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1069	6293824	WebResponse->header( )	../OutputPage.php:2172
7	0.1069	6293968	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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.1040	6278096	OutputPage->output( )	../MediaWiki.php:583
5	0.1077	6293824	WebResponse->header( )	../OutputPage.php:2220
6	0.1077	6293968	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	0.0001	233960	{main}( )	../index.php:0
2	0.0121	3375896	MediaWiki->run( )	../index.php:46
3	0.0121	3377304	MediaWiki->main( )	../MediaWiki.php:424
4	0.1040	6278096	OutputPage->output( )	../MediaWiki.php:583
5	0.1083	6293984	WebResponse->header( )	../OutputPage.php:2227
6	0.1083	6294128	header ( )	../WebResponse.php:37