( ! ) Warning: Search backend error during near_match search for '3.15.186.31' 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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.0237	3551304	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0383	4378848	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0387	4432784	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0387	4433152	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0809	5795056	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0857	5801312	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0857	5802064	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0879	5817064	Hooks::run( )	../SearchEngine.php:231
12	0.0879	5818664	call_user_func_array ( )	../Hooks.php:209
13	0.0879	5819368	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0885	5893408	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0893	5939440	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0927	6174544	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0930	6207312	PoolCounterWork->execute( )	../Util.php:133
18	0.0932	6231784	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0932	6231968	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0932	6232040	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0933	6234008	PoolCounterWork->execute( )	../Util.php:129
22	0.0933	6234656	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0933	6234840	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0933	6234960	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0997	6349240	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0998	6353168	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0998	6353448	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0999	6354736	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0999	6355128	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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.1025	6278368	OutputPage->output( )	../MediaWiki.php:583
5	0.1027	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1028	6286112	WebResponse->header( )	../OutputPage.php:2134
7	0.1028	6286256	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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.1025	6278368	OutputPage->output( )	../MediaWiki.php:583
5	0.1027	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1034	6294144	WebResponse->header( )	../OutputPage.php:2171
7	0.1034	6294288	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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.1025	6278368	OutputPage->output( )	../MediaWiki.php:583
5	0.1027	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1039	6294088	WebResponse->header( )	../OutputPage.php:2172
7	0.1039	6294232	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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.1025	6278368	OutputPage->output( )	../MediaWiki.php:583
5	0.1044	6294088	WebResponse->header( )	../OutputPage.php:2220
6	0.1044	6294232	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	0.0002	233896	{main}( )	../index.php:0
2	0.0152	3375832	MediaWiki->run( )	../index.php:46
3	0.0152	3377240	MediaWiki->main( )	../MediaWiki.php:424
4	0.1025	6278368	OutputPage->output( )	../MediaWiki.php:583
5	0.1051	6294240	WebResponse->header( )	../OutputPage.php:2227
6	0.1051	6294384	header ( )	../WebResponse.php:37