( ! ) Warning: Search backend error during near_match search for '3.16.50.152' after 17. 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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.0989	3551696	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1874	4379424	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1882	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1882	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.5464	5795624	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5826	5801568	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5826	5802320	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.5885	5817320	Hooks::run( )	../SearchEngine.php:231
12	0.5885	5818920	call_user_func_array ( )	../Hooks.php:209
13	0.5885	5819624	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.5888	5893656	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.5892	5939680	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.5934	6174736	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.5984	6206320	PoolCounterWork->execute( )	../Util.php:133
18	0.5985	6230576	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.5985	6230760	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.5985	6230832	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.5985	6232768	PoolCounterWork->execute( )	../Util.php:129
22	0.5985	6233416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.5986	6233600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.5986	6233720	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.6156	6347992	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.6158	6351928	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.6158	6352208	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.6159	6353512	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.6159	6353904	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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6178	6277200	OutputPage->output( )	../MediaWiki.php:583
5	0.6180	6283656	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6181	6284952	WebResponse->header( )	../OutputPage.php:2134
7	0.6181	6285096	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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6178	6277200	OutputPage->output( )	../MediaWiki.php:583
5	0.6180	6283656	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6187	6292984	WebResponse->header( )	../OutputPage.php:2171
7	0.6188	6293128	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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6178	6277200	OutputPage->output( )	../MediaWiki.php:583
5	0.6180	6283656	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6194	6292928	WebResponse->header( )	../OutputPage.php:2172
7	0.6194	6293072	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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6178	6277200	OutputPage->output( )	../MediaWiki.php:583
5	0.6199	6292928	WebResponse->header( )	../OutputPage.php:2220
6	0.6199	6293072	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	0.0264	3376040	MediaWiki->run( )	../index.php:46
3	0.0264	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6178	6277200	OutputPage->output( )	../MediaWiki.php:583
5	0.6206	6293080	WebResponse->header( )	../OutputPage.php:2227
6	0.6206	6293224	header ( )	../WebResponse.php:37