( ! ) Warning: Search backend error during near_match search for '3.12.166.144' after 49. 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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	0.2637	3599440	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.6192	4412864	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.6196	4466832	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.6196	4467200	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.4208	5795128	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.5294	5801408	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.5294	5802160	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.5758	5817160	Hooks::run( )	../SearchEngine.php:231
12	1.5758	5818760	call_user_func_array ( )	../Hooks.php:209
13	1.5758	5819464	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.5940	5893496	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.5946	5939520	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.6309	6174576	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.6311	6206160	PoolCounterWork->execute( )	../Util.php:133
18	1.6313	6230416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.6313	6230600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.6313	6230672	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.6313	6232608	PoolCounterWork->execute( )	../Util.php:129
22	1.6314	6233256	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.6314	6233440	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.6314	6233560	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.6799	6347808	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.6801	6351744	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.6801	6352024	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.6802	6353328	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.6802	6353720	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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	1.7134	6277016	OutputPage->output( )	../MediaWiki.php:583
5	1.7136	6283472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7137	6284768	WebResponse->header( )	../OutputPage.php:2134
7	1.7137	6284912	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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	1.7134	6277016	OutputPage->output( )	../MediaWiki.php:583
5	1.7136	6283472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7144	6292800	WebResponse->header( )	../OutputPage.php:2171
7	1.7144	6292944	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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	1.7134	6277016	OutputPage->output( )	../MediaWiki.php:583
5	1.7136	6283472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7149	6292744	WebResponse->header( )	../OutputPage.php:2172
7	1.7149	6292888	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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	1.7134	6277016	OutputPage->output( )	../MediaWiki.php:583
5	1.7154	6292744	WebResponse->header( )	../OutputPage.php:2220
6	1.7154	6292888	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	232200	{main}( )	../index.php:0
2	0.0562	3374280	MediaWiki->run( )	../index.php:46
3	0.0563	3375688	MediaWiki->main( )	../MediaWiki.php:424
4	1.7134	6277016	OutputPage->output( )	../MediaWiki.php:583
5	1.7160	6292904	WebResponse->header( )	../OutputPage.php:2227
6	1.7160	6293048	header ( )	../WebResponse.php:37