( ! ) Warning: Search backend error during near_match search for '18.117.91.153' after 6. 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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.0262	3957656	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0379	4412392	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0383	4466392	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0383	4466760	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0788	5811248	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0842	5817464	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0842	5818216	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0866	5833216	Hooks::run( )	../SearchEngine.php:231
12	0.0867	5834816	call_user_func_array ( )	../Hooks.php:209
13	0.0867	5835520	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0872	5909584	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0880	5955608	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0911	6190664	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0914	6222248	PoolCounterWork->execute( )	../Util.php:133
18	0.0915	6246504	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0915	6246688	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0915	6246760	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0915	6248696	PoolCounterWork->execute( )	../Util.php:129
22	0.0915	6249344	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0915	6249528	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0915	6249648	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0980	6363928	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0981	6367864	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0982	6368144	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0982	6369448	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0983	6369840	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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.1001	6293144	OutputPage->output( )	../MediaWiki.php:583
5	0.1003	6299600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1004	6300896	WebResponse->header( )	../OutputPage.php:2134
7	0.1004	6301040	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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.1001	6293144	OutputPage->output( )	../MediaWiki.php:583
5	0.1003	6299600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1011	6308928	WebResponse->header( )	../OutputPage.php:2171
7	0.1011	6309072	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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.1001	6293144	OutputPage->output( )	../MediaWiki.php:583
5	0.1003	6299600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1016	6308872	WebResponse->header( )	../OutputPage.php:2172
7	0.1016	6309016	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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.1001	6293144	OutputPage->output( )	../MediaWiki.php:583
5	0.1021	6308872	WebResponse->header( )	../OutputPage.php:2220
6	0.1021	6309016	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	235872	{main}( )	../index.php:0
2	0.0165	3782080	MediaWiki->run( )	../index.php:46
3	0.0165	3783488	MediaWiki->main( )	../MediaWiki.php:424
4	0.1001	6293144	OutputPage->output( )	../MediaWiki.php:583
5	0.1027	6309032	WebResponse->header( )	../OutputPage.php:2227
6	0.1027	6309176	header ( )	../WebResponse.php:37