( ! ) Warning: Search backend error during near_match search for '18.226.186.21' 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	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0556	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1265	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1271	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1271	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.2441	5796008	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.2494	5802240	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.2495	5802992	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2520	5817992	Hooks::run( )	../SearchEngine.php:231
12	0.2521	5819592	call_user_func_array ( )	../Hooks.php:209
13	0.2521	5820296	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2527	5894328	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2538	5940368	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.2574	6175424	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.2577	6207008	PoolCounterWork->execute( )	../Util.php:133
18	0.2578	6231264	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.2578	6231448	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.2578	6231520	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.2579	6233456	PoolCounterWork->execute( )	../Util.php:129
22	0.2579	6234104	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.2579	6234288	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.2579	6234408	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2725	6348664	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2727	6352600	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2727	6352880	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2728	6354184	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2728	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	0.0000	233960	{main}( )	../index.php:0
2	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2746	6277896	OutputPage->output( )	../MediaWiki.php:583
5	0.2748	6284352	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2749	6285648	WebResponse->header( )	../OutputPage.php:2134
7	0.2749	6285792	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	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2746	6277896	OutputPage->output( )	../MediaWiki.php:583
5	0.2748	6284352	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2755	6293696	WebResponse->header( )	../OutputPage.php:2171
7	0.2755	6293840	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	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2746	6277896	OutputPage->output( )	../MediaWiki.php:583
5	0.2748	6284352	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2762	6293640	WebResponse->header( )	../OutputPage.php:2172
7	0.2762	6293784	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	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2746	6277896	OutputPage->output( )	../MediaWiki.php:583
5	0.2766	6293640	WebResponse->header( )	../OutputPage.php:2220
6	0.2766	6293784	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	0.0187	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2746	6277896	OutputPage->output( )	../MediaWiki.php:583
5	0.2772	6293800	WebResponse->header( )	../OutputPage.php:2227
6	0.2773	6293944	header ( )	../WebResponse.php:37