( ! ) Warning: Search backend error during near_match search for '3.15.26.221' after 42. 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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.1395	3551968	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2327	4379424	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2331	4433312	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2331	4433680	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.6855	5796240	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.7267	5802496	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.7267	5803248	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.7481	5818248	Hooks::run( )	../SearchEngine.php:231
12	0.7482	5819848	call_user_func_array ( )	../Hooks.php:209
13	0.7482	5820552	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.7486	5894584	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.7491	5940608	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.7515	6175664	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.7517	6207272	PoolCounterWork->execute( )	../Util.php:133
18	0.7519	6231528	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.7519	6231712	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.7519	6231784	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.7519	6233720	PoolCounterWork->execute( )	../Util.php:129
22	0.7519	6234368	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.7519	6234552	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.7519	6234672	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.7939	6348920	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.7941	6352856	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.7941	6353136	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.7942	6354440	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.7942	6354832	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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.7958	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.7960	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7961	6285896	WebResponse->header( )	../OutputPage.php:2134
7	0.7961	6286040	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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.7958	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.7960	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8505	6293928	WebResponse->header( )	../OutputPage.php:2171
7	0.8505	6294072	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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.7958	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.7960	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8511	6293872	WebResponse->header( )	../OutputPage.php:2172
7	0.8511	6294016	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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.7958	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.8516	6293872	WebResponse->header( )	../OutputPage.php:2220
6	0.8516	6294016	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	3376408	MediaWiki->run( )	../index.php:46
3	0.0379	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.7958	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.8522	6294032	WebResponse->header( )	../OutputPage.php:2227
6	0.8522	6294176	header ( )	../WebResponse.php:37