( ! ) Warning: Search backend error during near_match search for '52.15.190.187' 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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0189	3599256	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0332	4412576	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0336	4466552	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0336	4466920	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0742	5794440	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0793	5800720	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0793	5801472	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0815	5816472	Hooks::run( )	../SearchEngine.php:231
12	0.0816	5818072	call_user_func_array ( )	../Hooks.php:209
13	0.0816	5818776	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0822	5892816	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0828	5938840	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0853	6173944	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0856	6206712	PoolCounterWork->execute( )	../Util.php:133
18	0.0858	6231200	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0858	6231384	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0858	6231456	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0858	6233424	PoolCounterWork->execute( )	../Util.php:129
22	0.0858	6234072	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0858	6234256	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0858	6234376	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0920	6348664	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0921	6352600	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0922	6352880	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0922	6354184	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0922	6354576	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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0938	6277776	OutputPage->output( )	../MediaWiki.php:583
5	0.0940	6284232	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0941	6285528	WebResponse->header( )	../OutputPage.php:2134
7	0.0941	6285672	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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0938	6277776	OutputPage->output( )	../MediaWiki.php:583
5	0.0940	6284232	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0947	6293560	WebResponse->header( )	../OutputPage.php:2171
7	0.0947	6293704	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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0938	6277776	OutputPage->output( )	../MediaWiki.php:583
5	0.0940	6284232	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0953	6293504	WebResponse->header( )	../OutputPage.php:2172
7	0.0953	6293648	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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0938	6277776	OutputPage->output( )	../MediaWiki.php:583
5	0.0957	6293504	WebResponse->header( )	../OutputPage.php:2220
6	0.0957	6293648	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	232232	{main}( )	../index.php:0
2	0.0108	3374168	MediaWiki->run( )	../index.php:46
3	0.0109	3375576	MediaWiki->main( )	../MediaWiki.php:424
4	0.0938	6277776	OutputPage->output( )	../MediaWiki.php:583
5	0.0962	6293664	WebResponse->header( )	../OutputPage.php:2227
6	0.0962	6293808	header ( )	../WebResponse.php:37