( ! ) Warning: Search backend error during near_match search for '3.21.46.249' after 66. 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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.1790	3551968	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3343	4379424	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3348	4433312	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3348	4433680	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.9513	5796272	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.0461	5802528	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.0461	5803280	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.0642	5818280	Hooks::run( )	../SearchEngine.php:231
12	1.0643	5819880	call_user_func_array ( )	../Hooks.php:209
13	1.0643	5820584	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.0647	5894616	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.0651	5940640	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.0670	6175696	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.0672	6207280	PoolCounterWork->execute( )	../Util.php:133
18	1.0673	6231536	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.0673	6231720	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.0673	6231792	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.0673	6233728	PoolCounterWork->execute( )	../Util.php:129
22	1.0673	6234376	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.0673	6234560	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.0673	6234680	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.1335	6348928	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.1336	6352864	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.1336	6353144	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.1337	6354448	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.1337	6354840	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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.1358	6278152	OutputPage->output( )	../MediaWiki.php:583
5	1.1360	6284608	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1361	6285904	WebResponse->header( )	../OutputPage.php:2134
7	1.1361	6286048	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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.1358	6278152	OutputPage->output( )	../MediaWiki.php:583
5	1.1360	6284608	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1633	6293936	WebResponse->header( )	../OutputPage.php:2171
7	1.1633	6294080	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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.1358	6278152	OutputPage->output( )	../MediaWiki.php:583
5	1.1360	6284608	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1776	6293880	WebResponse->header( )	../OutputPage.php:2172
7	1.1776	6294024	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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.1358	6278152	OutputPage->output( )	../MediaWiki.php:583
5	1.1781	6293880	WebResponse->header( )	../OutputPage.php:2220
6	1.1781	6294024	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	0.0768	3376408	MediaWiki->run( )	../index.php:46
3	0.0768	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.1358	6278152	OutputPage->output( )	../MediaWiki.php:583
5	1.1788	6294040	WebResponse->header( )	../OutputPage.php:2227
6	1.1788	6294184	header ( )	../WebResponse.php:37