( ! ) Warning: Search backend error during near_match search for '18.227.13.77' 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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0224	3551960	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0377	4379464	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0382	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0382	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0845	5796984	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0897	5802552	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0897	5803304	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0919	5818304	Hooks::run( )	../SearchEngine.php:231
12	0.0920	5819904	call_user_func_array ( )	../Hooks.php:209
13	0.0920	5820608	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0925	5894640	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0934	5940672	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0968	6175728	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0970	6207336	PoolCounterWork->execute( )	../Util.php:133
18	0.0971	6231592	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0971	6231776	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0971	6231848	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0972	6233784	PoolCounterWork->execute( )	../Util.php:129
22	0.0972	6234432	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0972	6234616	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0972	6234736	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1037	6348984	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1038	6352920	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1038	6353200	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1039	6354504	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1039	6354896	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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1057	6278216	OutputPage->output( )	../MediaWiki.php:583
5	0.1059	6284672	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1060	6285968	WebResponse->header( )	../OutputPage.php:2134
7	0.1060	6286112	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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1057	6278216	OutputPage->output( )	../MediaWiki.php:583
5	0.1059	6284672	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1067	6294000	WebResponse->header( )	../OutputPage.php:2171
7	0.1067	6294144	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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1057	6278216	OutputPage->output( )	../MediaWiki.php:583
5	0.1059	6284672	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1072	6293944	WebResponse->header( )	../OutputPage.php:2172
7	0.1072	6294088	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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1057	6278216	OutputPage->output( )	../MediaWiki.php:583
5	0.1077	6293944	WebResponse->header( )	../OutputPage.php:2220
6	0.1077	6294088	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	0.0001	233960	{main}( )	../index.php:0
2	0.0128	3376416	MediaWiki->run( )	../index.php:46
3	0.0128	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1057	6278216	OutputPage->output( )	../MediaWiki.php:583
5	0.1083	6294104	WebResponse->header( )	../OutputPage.php:2227
6	0.1083	6294248	header ( )	../WebResponse.php:37