( ! ) Warning: Search backend error during near_match search for '3.15.22.27' after 33. 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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.1284	3551680	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2445	4379192	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2449	4433088	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2450	4433456	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.6617	5794552	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.7015	5800808	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.7015	5801560	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.7190	5816560	Hooks::run( )	../SearchEngine.php:231
12	0.7190	5818160	call_user_func_array ( )	../Hooks.php:209
13	0.7190	5818864	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.7247	5892872	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.7253	5938896	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.7477	6173992	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.7557	6205584	PoolCounterWork->execute( )	../Util.php:133
18	0.7559	6229840	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.7559	6230024	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.7559	6230096	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.7559	6232032	PoolCounterWork->execute( )	../Util.php:129
22	0.7560	6232680	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.7560	6232864	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.7560	6232984	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.7887	6347264	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.7889	6351192	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.7889	6351472	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.7890	6352760	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.7890	6353152	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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7908	6276456	OutputPage->output( )	../MediaWiki.php:583
5	0.7910	6282904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7911	6284200	WebResponse->header( )	../OutputPage.php:2134
7	0.7911	6284344	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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7908	6276456	OutputPage->output( )	../MediaWiki.php:583
5	0.7910	6282904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7990	6292232	WebResponse->header( )	../OutputPage.php:2171
7	0.7990	6292376	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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7908	6276456	OutputPage->output( )	../MediaWiki.php:583
5	0.7910	6282904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8076	6292176	WebResponse->header( )	../OutputPage.php:2172
7	0.8076	6292320	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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7908	6276456	OutputPage->output( )	../MediaWiki.php:583
5	0.8081	6292176	WebResponse->header( )	../OutputPage.php:2220
6	0.8081	6292320	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	233896	{main}( )	../index.php:0
2	0.0247	3376040	MediaWiki->run( )	../index.php:46
3	0.0248	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.7908	6276456	OutputPage->output( )	../MediaWiki.php:583
5	0.8087	6292328	WebResponse->header( )	../OutputPage.php:2227
6	0.8087	6292472	header ( )	../WebResponse.php:37