( ! ) Warning: Search backend error during near_match search for '18.227.21.21' 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	0.0000	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0430	3551264	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0818	4378752	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0837	4432672	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0837	4433040	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1693	5794616	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1750	5800872	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1751	5801624	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1776	5816624	Hooks::run( )	../SearchEngine.php:231
12	0.1776	5818224	call_user_func_array ( )	../Hooks.php:209
13	0.1776	5818928	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1782	5892960	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1790	5938984	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1821	6174040	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1824	6205648	PoolCounterWork->execute( )	../Util.php:133
18	0.1825	6229904	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1825	6230088	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1825	6230160	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1825	6232096	PoolCounterWork->execute( )	../Util.php:129
22	0.1825	6232744	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1826	6232928	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1826	6233048	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1888	6347296	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1890	6351232	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1890	6351512	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1891	6352816	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1891	6353208	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	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1907	6276520	OutputPage->output( )	../MediaWiki.php:583
5	0.1909	6282976	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1910	6284272	WebResponse->header( )	../OutputPage.php:2134
7	0.1910	6284416	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	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1907	6276520	OutputPage->output( )	../MediaWiki.php:583
5	0.1909	6282976	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1917	6292304	WebResponse->header( )	../OutputPage.php:2171
7	0.1917	6292448	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	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1907	6276520	OutputPage->output( )	../MediaWiki.php:583
5	0.1909	6282976	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1922	6292248	WebResponse->header( )	../OutputPage.php:2172
7	0.1922	6292392	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	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1907	6276520	OutputPage->output( )	../MediaWiki.php:583
5	0.1929	6292248	WebResponse->header( )	../OutputPage.php:2220
6	0.1929	6292392	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	233928	{main}( )	../index.php:0
2	0.0169	3375864	MediaWiki->run( )	../index.php:46
3	0.0169	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1907	6276520	OutputPage->output( )	../MediaWiki.php:583
5	0.1937	6292408	WebResponse->header( )	../OutputPage.php:2227
6	0.1937	6292552	header ( )	../WebResponse.php:37