( ! ) Warning: Search backend error during near_match search for '18.191.178.68' after 15. 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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.0182	3551600	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0622	4379112	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0626	4433040	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0626	4433408	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1126	5794816	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1184	5800904	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1184	5801656	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1207	5816656	Hooks::run( )	../SearchEngine.php:231
12	0.1208	5818256	call_user_func_array ( )	../Hooks.php:209
13	0.1208	5818960	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1213	5893008	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1221	5939032	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1332	6174128	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1335	6205712	PoolCounterWork->execute( )	../Util.php:133
18	0.1336	6229968	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1336	6230152	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1336	6230224	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1337	6232160	PoolCounterWork->execute( )	../Util.php:129
22	0.1337	6232808	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1337	6232992	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1337	6233112	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1484	6347400	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1485	6351336	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1485	6351616	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1486	6352920	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1486	6353312	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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.1504	6276592	OutputPage->output( )	../MediaWiki.php:583
5	0.1506	6283048	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1507	6284344	WebResponse->header( )	../OutputPage.php:2134
7	0.1507	6284488	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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.1504	6276592	OutputPage->output( )	../MediaWiki.php:583
5	0.1506	6283048	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1514	6292376	WebResponse->header( )	../OutputPage.php:2171
7	0.1514	6292520	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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.1504	6276592	OutputPage->output( )	../MediaWiki.php:583
5	0.1506	6283048	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1519	6292320	WebResponse->header( )	../OutputPage.php:2172
7	0.1519	6292464	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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.1504	6276592	OutputPage->output( )	../MediaWiki.php:583
5	0.1524	6292320	WebResponse->header( )	../OutputPage.php:2220
6	0.1524	6292464	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	0.0088	3376112	MediaWiki->run( )	../index.php:46
3	0.0088	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.1504	6276592	OutputPage->output( )	../MediaWiki.php:583
5	0.1530	6292480	WebResponse->header( )	../OutputPage.php:2227
6	0.1530	6292624	header ( )	../WebResponse.php:37