( ! ) Warning: Search backend error during near_match search for '3.21.12.194' after 7. 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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0201	3551360	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0346	4378888	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0350	4432784	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0350	4433152	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0901	5795232	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0950	5801488	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0950	5802240	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0972	5817240	Hooks::run( )	../SearchEngine.php:231
12	0.0972	5818840	call_user_func_array ( )	../Hooks.php:209
13	0.0972	5819544	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0977	5893576	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0984	5939608	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1013	6174616	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1016	6206200	PoolCounterWork->execute( )	../Util.php:133
18	0.1017	6230456	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1017	6230640	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1017	6230712	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1017	6232648	PoolCounterWork->execute( )	../Util.php:129
22	0.1017	6233296	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1017	6233480	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1017	6233600	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1087	6347864	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1088	6351792	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1088	6352072	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1089	6353360	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1089	6353752	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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1106	6277088	OutputPage->output( )	../MediaWiki.php:583
5	0.1108	6283536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1109	6284832	WebResponse->header( )	../OutputPage.php:2134
7	0.1109	6284976	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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1106	6277088	OutputPage->output( )	../MediaWiki.php:583
5	0.1108	6283536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1115	6292864	WebResponse->header( )	../OutputPage.php:2171
7	0.1115	6293008	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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1106	6277088	OutputPage->output( )	../MediaWiki.php:583
5	0.1108	6283536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1120	6292808	WebResponse->header( )	../OutputPage.php:2172
7	0.1120	6292952	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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1106	6277088	OutputPage->output( )	../MediaWiki.php:583
5	0.1125	6292808	WebResponse->header( )	../OutputPage.php:2220
6	0.1125	6292952	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	0.0082	3375864	MediaWiki->run( )	../index.php:46
3	0.0083	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1106	6277088	OutputPage->output( )	../MediaWiki.php:583
5	0.1131	6292960	WebResponse->header( )	../OutputPage.php:2227
6	0.1131	6293104	header ( )	../WebResponse.php:37