( ! ) Warning: Search backend error during near_match search for '18.188.151.127' 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	233960	{main}( )	../index.php:0
2	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0782	3551480	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1482	4379048	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1486	4432984	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1486	4433352	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3623	5794464	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3967	5800696	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3967	5801448	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.4096	5816440	Hooks::run( )	../SearchEngine.php:231
12	0.4096	5818040	call_user_func_array ( )	../Hooks.php:209
13	0.4096	5818744	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.4099	5892776	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.4103	5938816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.4312	6173872	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.4314	6205464	PoolCounterWork->execute( )	../Util.php:133
18	0.4396	6229720	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.4396	6229904	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.4396	6229976	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.4396	6231912	PoolCounterWork->execute( )	../Util.php:129
22	0.4396	6232560	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.4396	6232744	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.4396	6232864	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.4414	6347112	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.4415	6351048	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.4415	6351328	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.4416	6352632	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.4416	6353024	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	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.4576	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.4579	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4580	6284080	WebResponse->header( )	../OutputPage.php:2134
7	0.4580	6284224	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	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.4576	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.4579	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4587	6292112	WebResponse->header( )	../OutputPage.php:2171
7	0.4587	6292256	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	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.4576	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.4579	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4592	6292056	WebResponse->header( )	../OutputPage.php:2172
7	0.4592	6292200	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	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.4576	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.4719	6292056	WebResponse->header( )	../OutputPage.php:2220
6	0.4719	6292200	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	0.0131	3375880	MediaWiki->run( )	../index.php:46
3	0.0132	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.4576	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.4726	6292216	WebResponse->header( )	../OutputPage.php:2227
6	0.4726	6292360	header ( )	../WebResponse.php:37