( ! ) Warning: Search backend error during near_match search for '18.227.13.192' 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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0204	3560232	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0347	4387768	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0350	4441696	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0350	4442064	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0778	5803544	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0830	5809664	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0830	5810416	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0860	5825416	Hooks::run( )	../SearchEngine.php:231
12	0.0860	5827016	call_user_func_array ( )	../Hooks.php:209
13	0.0861	5827720	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0863	5901768	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0868	5947816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0889	6182912	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0891	6214504	PoolCounterWork->execute( )	../Util.php:133
18	0.0892	6238760	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0892	6238944	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0892	6239016	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0893	6240952	PoolCounterWork->execute( )	../Util.php:129
22	0.0893	6241600	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0893	6241784	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0893	6241904	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0910	6356192	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0911	6360128	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0911	6360408	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0912	6361712	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0912	6362104	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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0947	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.0949	6291816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0950	6293112	WebResponse->header( )	../OutputPage.php:2134
7	0.0950	6293256	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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0947	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.0949	6291816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0957	6301144	WebResponse->header( )	../OutputPage.php:2171
7	0.0957	6301288	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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0947	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.0949	6291816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0962	6301088	WebResponse->header( )	../OutputPage.php:2172
7	0.0962	6301232	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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0947	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.0967	6301088	WebResponse->header( )	../OutputPage.php:2220
6	0.0967	6301232	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	239856	{main}( )	../index.php:0
2	0.0103	3384696	MediaWiki->run( )	../index.php:46
3	0.0103	3386104	MediaWiki->main( )	../MediaWiki.php:424
4	0.0947	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.0973	6301248	WebResponse->header( )	../OutputPage.php:2227
6	0.0973	6301392	header ( )	../WebResponse.php:37