( ! ) Warning: Search backend error during near_match search for '18.221.230.4' after 15. 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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0498	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1017	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1021	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1022	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.2245	5795872	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.2359	5802128	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.2359	5802880	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2382	5817880	Hooks::run( )	../SearchEngine.php:231
12	0.2382	5819480	call_user_func_array ( )	../Hooks.php:209
13	0.2382	5820184	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2388	5894224	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2395	5940264	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.2462	6175360	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.2464	6206960	PoolCounterWork->execute( )	../Util.php:133
18	0.2465	6231216	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.2465	6231400	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.2466	6231472	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.2466	6233408	PoolCounterWork->execute( )	../Util.php:129
22	0.2466	6234056	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.2466	6234240	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.2466	6234360	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2617	6348640	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2619	6352576	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2619	6352856	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2620	6354160	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2620	6354552	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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2638	6277840	OutputPage->output( )	../MediaWiki.php:583
5	0.2640	6284296	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2641	6285592	WebResponse->header( )	../OutputPage.php:2134
7	0.2641	6285736	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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2638	6277840	OutputPage->output( )	../MediaWiki.php:583
5	0.2640	6284296	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2650	6293624	WebResponse->header( )	../OutputPage.php:2171
7	0.2650	6293768	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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2638	6277840	OutputPage->output( )	../MediaWiki.php:583
5	0.2640	6284296	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2655	6293568	WebResponse->header( )	../OutputPage.php:2172
7	0.2655	6293712	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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2638	6277840	OutputPage->output( )	../MediaWiki.php:583
5	0.2660	6293568	WebResponse->header( )	../OutputPage.php:2220
6	0.2660	6293712	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	233960	{main}( )	../index.php:0
2	0.0088	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2638	6277840	OutputPage->output( )	../MediaWiki.php:583
5	0.2666	6293728	WebResponse->header( )	../OutputPage.php:2227
6	0.2666	6293872	header ( )	../WebResponse.php:37