( ! ) Warning: Search backend error during near_match search for '18.227.21.63' after 17. 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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0317	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0459	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0474	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0474	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1528	5795832	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1689	5802088	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1689	5802840	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1714	5817840	Hooks::run( )	../SearchEngine.php:231
12	0.1715	5819440	call_user_func_array ( )	../Hooks.php:209
13	0.1715	5820144	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1721	5894168	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1858	5940216	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1887	6175224	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1890	6206832	PoolCounterWork->execute( )	../Util.php:133
18	0.1892	6231088	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1892	6231272	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1892	6231344	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1892	6233280	PoolCounterWork->execute( )	../Util.php:129
22	0.1892	6233928	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1893	6234112	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1893	6234232	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2066	6348496	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2068	6352432	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2068	6352712	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2069	6354016	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2069	6354408	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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2085	6277728	OutputPage->output( )	../MediaWiki.php:583
5	0.2087	6284184	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2088	6285480	WebResponse->header( )	../OutputPage.php:2134
7	0.2088	6285624	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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2085	6277728	OutputPage->output( )	../MediaWiki.php:583
5	0.2087	6284184	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2095	6293512	WebResponse->header( )	../OutputPage.php:2171
7	0.2095	6293656	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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2085	6277728	OutputPage->output( )	../MediaWiki.php:583
5	0.2087	6284184	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2099	6293456	WebResponse->header( )	../OutputPage.php:2172
7	0.2099	6293600	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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2085	6277728	OutputPage->output( )	../MediaWiki.php:583
5	0.2106	6293456	WebResponse->header( )	../OutputPage.php:2220
6	0.2106	6293600	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	0.0161	3376416	MediaWiki->run( )	../index.php:46
3	0.0162	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2085	6277728	OutputPage->output( )	../MediaWiki.php:583
5	0.2112	6293616	WebResponse->header( )	../OutputPage.php:2227
6	0.2112	6293760	header ( )	../WebResponse.php:37