( ! ) Warning: Search backend error during near_match search for '18.189.189.126' 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	0.0000	233960	{main}( )	../index.php:0
2	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0167	3551480	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0308	4379048	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0313	4432984	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0313	4433352	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0866	5794464	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0918	5800696	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0918	5801448	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0942	5816440	Hooks::run( )	../SearchEngine.php:231
12	0.0942	5818040	call_user_func_array ( )	../Hooks.php:209
13	0.0942	5818744	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0945	5892776	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0949	5938816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0972	6173824	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0974	6205424	PoolCounterWork->execute( )	../Util.php:133
18	0.0975	6229680	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0975	6229864	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0975	6229936	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0975	6231872	PoolCounterWork->execute( )	../Util.php:129
22	0.0975	6232520	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0975	6232704	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0975	6232824	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1034	6347088	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1035	6351024	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1035	6351304	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1036	6352608	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1036	6353000	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	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	6276304	OutputPage->output( )	../MediaWiki.php:583
5	0.1055	6282760	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1056	6284056	WebResponse->header( )	../OutputPage.php:2134
7	0.1056	6284200	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	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	6276304	OutputPage->output( )	../MediaWiki.php:583
5	0.1055	6282760	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1062	6292088	WebResponse->header( )	../OutputPage.php:2171
7	0.1062	6292232	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	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	6276304	OutputPage->output( )	../MediaWiki.php:583
5	0.1055	6282760	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1067	6292032	WebResponse->header( )	../OutputPage.php:2172
7	0.1067	6292176	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	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	6276304	OutputPage->output( )	../MediaWiki.php:583
5	0.1072	6292032	WebResponse->header( )	../OutputPage.php:2220
6	0.1072	6292176	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	0.0082	3375880	MediaWiki->run( )	../index.php:46
3	0.0082	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	6276304	OutputPage->output( )	../MediaWiki.php:583
5	0.1078	6292192	WebResponse->header( )	../OutputPage.php:2227
6	0.1078	6292336	header ( )	../WebResponse.php:37