( ! ) Warning: Search backend error during near_match search for '3.12.147.168' after 44. 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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0783	3551304	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1687	4378752	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1691	4432624	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1691	4432992	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.0523	5794464	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.1430	5800720	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.1430	5801472	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.1585	5816472	Hooks::run( )	../SearchEngine.php:231
12	1.1586	5818072	call_user_func_array ( )	../Hooks.php:209
13	1.1586	5818776	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.1590	5892816	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.1596	5938848	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.1752	6173856	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.1755	6205440	PoolCounterWork->execute( )	../Util.php:133
18	1.1756	6229696	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.1756	6229880	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.1756	6229952	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.1757	6231888	PoolCounterWork->execute( )	../Util.php:129
22	1.1757	6232536	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.1757	6232720	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.1757	6232840	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.2193	6347104	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.2195	6351040	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.2195	6351320	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.2196	6352624	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.2196	6353016	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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	1.2221	6276328	OutputPage->output( )	../MediaWiki.php:583
5	1.2223	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.2224	6284080	WebResponse->header( )	../OutputPage.php:2134
7	1.2224	6284224	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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	1.2221	6276328	OutputPage->output( )	../MediaWiki.php:583
5	1.2223	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.2230	6292112	WebResponse->header( )	../OutputPage.php:2171
7	1.2230	6292256	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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	1.2221	6276328	OutputPage->output( )	../MediaWiki.php:583
5	1.2223	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.2235	6292056	WebResponse->header( )	../OutputPage.php:2172
7	1.2235	6292200	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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	1.2221	6276328	OutputPage->output( )	../MediaWiki.php:583
5	1.2240	6292056	WebResponse->header( )	../OutputPage.php:2220
6	1.2240	6292200	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	233928	{main}( )	../index.php:0
2	0.0378	3375864	MediaWiki->run( )	../index.php:46
3	0.0379	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	1.2221	6276328	OutputPage->output( )	../MediaWiki.php:583
5	1.2506	6292216	WebResponse->header( )	../OutputPage.php:2227
6	1.2506	6292360	header ( )	../WebResponse.php:37