( ! ) Warning: Search backend error during near_match search for '18.191.174.232' 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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1202	3551592	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1928	4379144	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1932	4433064	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1932	4433432	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.5459	5795320	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5916	5801576	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5916	5802328	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.6125	5817320	Hooks::run( )	../SearchEngine.php:231
12	0.6126	5818920	call_user_func_array ( )	../Hooks.php:209
13	0.6126	5819624	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.6129	5893664	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.6133	5939704	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.6151	6174800	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.6153	6206384	PoolCounterWork->execute( )	../Util.php:133
18	0.6487	6230640	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.6487	6230824	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.6489	6230896	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.6490	6232832	PoolCounterWork->execute( )	../Util.php:129
22	0.6490	6233480	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.6490	6233664	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.6490	6233784	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.6510	6348064	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.6512	6352000	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.6512	6352280	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.6513	6353584	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.6513	6353976	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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.6695	6277248	OutputPage->output( )	../MediaWiki.php:583
5	0.6697	6283704	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6698	6285000	WebResponse->header( )	../OutputPage.php:2134
7	0.6698	6285144	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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.6695	6277248	OutputPage->output( )	../MediaWiki.php:583
5	0.6697	6283704	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6896	6293032	WebResponse->header( )	../OutputPage.php:2171
7	0.6896	6293176	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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.6695	6277248	OutputPage->output( )	../MediaWiki.php:583
5	0.6697	6283704	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6901	6292976	WebResponse->header( )	../OutputPage.php:2172
7	0.6901	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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.6695	6277248	OutputPage->output( )	../MediaWiki.php:583
5	0.6906	6292976	WebResponse->header( )	../OutputPage.php:2220
6	0.6906	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	0.0291	3376096	MediaWiki->run( )	../index.php:46
3	0.0291	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.6695	6277248	OutputPage->output( )	../MediaWiki.php:583
5	0.6912	6293136	WebResponse->header( )	../OutputPage.php:2227
6	0.6912	6293280	header ( )	../WebResponse.php:37