( ! ) Warning: Search backend error during near_match search for '3.144.42.221' 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	233928	{main}( )	../index.php:0
2	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0169	3551264	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0313	4378752	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0317	4432672	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0317	4433040	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0739	5794632	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0789	5800888	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0789	5801640	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0810	5816640	Hooks::run( )	../SearchEngine.php:231
12	0.0810	5818240	call_user_func_array ( )	../Hooks.php:209
13	0.0810	5818944	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0815	5892976	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0822	5939016	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0850	6174024	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0852	6205608	PoolCounterWork->execute( )	../Util.php:133
18	0.0854	6229864	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0854	6230048	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0854	6230120	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0854	6232056	PoolCounterWork->execute( )	../Util.php:129
22	0.0854	6232704	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0854	6232888	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0854	6233008	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0873	6347272	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0874	6351208	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0874	6351488	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0875	6352792	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0875	6353184	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	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0892	6276496	OutputPage->output( )	../MediaWiki.php:583
5	0.0895	6282952	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0896	6284248	WebResponse->header( )	../OutputPage.php:2134
7	0.0896	6284392	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	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0892	6276496	OutputPage->output( )	../MediaWiki.php:583
5	0.0895	6282952	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0902	6292280	WebResponse->header( )	../OutputPage.php:2171
7	0.0902	6292424	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	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0892	6276496	OutputPage->output( )	../MediaWiki.php:583
5	0.0895	6282952	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0906	6292224	WebResponse->header( )	../OutputPage.php:2172
7	0.0906	6292368	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	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0892	6276496	OutputPage->output( )	../MediaWiki.php:583
5	0.0911	6292224	WebResponse->header( )	../OutputPage.php:2220
6	0.0911	6292368	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	0.0092	3375864	MediaWiki->run( )	../index.php:46
3	0.0092	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0892	6276496	OutputPage->output( )	../MediaWiki.php:583
5	0.0918	6292384	WebResponse->header( )	../OutputPage.php:2227
6	0.0918	6292528	header ( )	../WebResponse.php:37