( ! ) Warning: Search backend error during near_match search for '18.217.4.202' after 5. 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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.0310	3551512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0728	4379208	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0734	4433096	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0734	4433464	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1749	5795064	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.2103	5801320	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.2103	5802072	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2163	5817072	Hooks::run( )	../SearchEngine.php:231
12	0.2164	5818672	call_user_func_array ( )	../Hooks.php:209
13	0.2164	5819376	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2166	5893416	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2169	5939448	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.2188	6174544	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.2189	6206152	PoolCounterWork->execute( )	../Util.php:133
18	0.2189	6230408	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.2189	6230592	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.2190	6230664	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.2190	6232600	PoolCounterWork->execute( )	../Util.php:129
22	0.2190	6233248	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.2190	6233432	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.2190	6233552	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2235	6347848	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2237	6351784	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2237	6352064	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2238	6353368	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2238	6353760	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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.2315	6277024	OutputPage->output( )	../MediaWiki.php:583
5	0.2317	6283480	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2318	6284776	WebResponse->header( )	../OutputPage.php:2134
7	0.2318	6284920	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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.2315	6277024	OutputPage->output( )	../MediaWiki.php:583
5	0.2317	6283480	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2324	6292808	WebResponse->header( )	../OutputPage.php:2171
7	0.2324	6292952	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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.2315	6277024	OutputPage->output( )	../MediaWiki.php:583
5	0.2317	6283480	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2455	6292752	WebResponse->header( )	../OutputPage.php:2172
7	0.2455	6292896	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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.2315	6277024	OutputPage->output( )	../MediaWiki.php:583
5	0.2460	6292752	WebResponse->header( )	../OutputPage.php:2220
6	0.2460	6292896	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	0.0128	3376040	MediaWiki->run( )	../index.php:46
3	0.0128	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.2315	6277024	OutputPage->output( )	../MediaWiki.php:583
5	0.2466	6292912	WebResponse->header( )	../OutputPage.php:2227
6	0.2466	6293056	header ( )	../WebResponse.php:37