( ! ) Warning: Search backend error during near_match search for '18.219.4.174' after 2. 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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.1135	3551512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2682	4379208	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2685	4433096	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2685	4433464	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.7386	5795064	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.7658	5801320	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.7658	5802072	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.7745	5817072	Hooks::run( )	../SearchEngine.php:231
12	0.7746	5818672	call_user_func_array ( )	../Hooks.php:209
13	0.7746	5819376	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.7748	5893400	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.7751	5939432	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.7860	6174488	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.7862	6206088	PoolCounterWork->execute( )	../Util.php:133
18	0.7863	6230344	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.7863	6230528	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.7863	6230600	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.7864	6232536	PoolCounterWork->execute( )	../Util.php:129
22	0.7864	6233184	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.7864	6233368	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.7864	6233488	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.7880	6347752	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.7881	6351688	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.7882	6351968	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.7882	6353272	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.7883	6353664	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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7900	6276960	OutputPage->output( )	../MediaWiki.php:583
5	0.8301	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8302	6284712	WebResponse->header( )	../OutputPage.php:2134
7	0.8302	6284856	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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7900	6276960	OutputPage->output( )	../MediaWiki.php:583
5	0.8301	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8310	6292744	WebResponse->header( )	../OutputPage.php:2171
7	0.8310	6292888	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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7900	6276960	OutputPage->output( )	../MediaWiki.php:583
5	0.8301	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8314	6292688	WebResponse->header( )	../OutputPage.php:2172
7	0.8315	6292832	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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7900	6276960	OutputPage->output( )	../MediaWiki.php:583
5	0.8320	6292688	WebResponse->header( )	../OutputPage.php:2220
6	0.8320	6292832	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	233928	{main}( )	../index.php:0
2	0.0181	3376040	MediaWiki->run( )	../index.php:46
3	0.0181	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7900	6276960	OutputPage->output( )	../MediaWiki.php:583
5	0.8325	6292848	WebResponse->header( )	../OutputPage.php:2227
6	0.8326	6292992	header ( )	../WebResponse.php:37