( ! ) Warning: Search backend error during near_match search for '18.191.222.197' 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	233960	{main}( )	../index.php:0
2	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.0281	3551592	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0583	4379144	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0587	4433064	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0587	4433432	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1425	5795320	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1511	5801576	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1511	5802328	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1536	5817320	Hooks::run( )	../SearchEngine.php:231
12	0.1536	5818920	call_user_func_array ( )	../Hooks.php:209
13	0.1536	5819624	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1540	5893648	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1547	5939688	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1577	6174744	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1579	6206328	PoolCounterWork->execute( )	../Util.php:133
18	0.1580	6230584	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1580	6230768	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1580	6230840	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1580	6232776	PoolCounterWork->execute( )	../Util.php:129
22	0.1580	6233424	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1580	6233608	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1580	6233728	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1602	6347960	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1603	6351896	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1603	6352176	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1604	6353480	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1604	6353872	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	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1623	6277192	OutputPage->output( )	../MediaWiki.php:583
5	0.1625	6283648	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1626	6284944	WebResponse->header( )	../OutputPage.php:2134
7	0.1626	6285088	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	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1623	6277192	OutputPage->output( )	../MediaWiki.php:583
5	0.1625	6283648	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1633	6292976	WebResponse->header( )	../OutputPage.php:2171
7	0.1633	6293120	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	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1623	6277192	OutputPage->output( )	../MediaWiki.php:583
5	0.1625	6283648	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1641	6292920	WebResponse->header( )	../OutputPage.php:2172
7	0.1641	6293064	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	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1623	6277192	OutputPage->output( )	../MediaWiki.php:583
5	0.1646	6292920	WebResponse->header( )	../OutputPage.php:2220
6	0.1646	6293064	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	0.0118	3376096	MediaWiki->run( )	../index.php:46
3	0.0119	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1623	6277192	OutputPage->output( )	../MediaWiki.php:583
5	0.1652	6293080	WebResponse->header( )	../OutputPage.php:2227
6	0.1652	6293224	header ( )	../WebResponse.php:37