( ! ) Warning: Search backend error during near_match search for '18.188.31.57' after 33. 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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.1695	3551512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.4620	4379208	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.4624	4433096	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.4624	4433464	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.4929	5795064	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.6210	5801320	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.6210	5802072	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.7011	5817072	Hooks::run( )	../SearchEngine.php:231
12	1.7011	5818672	call_user_func_array ( )	../Hooks.php:209
13	1.7011	5819376	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.7016	5893400	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.7618	5939432	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.8111	6174488	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.8113	6206088	PoolCounterWork->execute( )	../Util.php:133
18	1.8637	6230344	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.8637	6230528	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.8637	6230600	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.8638	6232536	PoolCounterWork->execute( )	../Util.php:129
22	1.8638	6233184	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.8638	6233368	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.8638	6233488	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.8963	6347736	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.9181	6351672	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.9181	6351952	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.9279	6353256	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.9279	6353648	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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	1.9685	6276960	OutputPage->output( )	../MediaWiki.php:583
5	1.9687	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.9688	6284712	WebResponse->header( )	../OutputPage.php:2134
7	1.9688	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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	1.9685	6276960	OutputPage->output( )	../MediaWiki.php:583
5	1.9687	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	2.0196	6292744	WebResponse->header( )	../OutputPage.php:2171
7	2.0196	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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	1.9685	6276960	OutputPage->output( )	../MediaWiki.php:583
5	1.9687	6283416	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	2.0268	6292688	WebResponse->header( )	../OutputPage.php:2172
7	2.0268	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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	1.9685	6276960	OutputPage->output( )	../MediaWiki.php:583
5	2.0273	6292688	WebResponse->header( )	../OutputPage.php:2220
6	2.0273	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	0.0766	3376040	MediaWiki->run( )	../index.php:46
3	0.0766	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	1.9685	6276960	OutputPage->output( )	../MediaWiki.php:583
5	2.0573	6292848	WebResponse->header( )	../OutputPage.php:2227
6	2.0573	6292992	header ( )	../WebResponse.php:37