( ! ) Warning: Search backend error during near_match search for '18.217.156.194' after 21. 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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.0400	3965224	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0669	4419992	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0674	4474048	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0674	4474416	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1496	5818504	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1706	5824552	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1706	5825304	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1806	5840296	Hooks::run( )	../SearchEngine.php:231
12	0.1806	5841896	call_user_func_array ( )	../Hooks.php:209
13	0.1806	5842600	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1813	5916648	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1821	5962672	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1855	6197696	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1858	6230464	PoolCounterWork->execute( )	../Util.php:133
18	0.1859	6254880	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1859	6255064	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1859	6255136	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1860	6257104	PoolCounterWork->execute( )	../Util.php:129
22	0.1860	6257752	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1860	6257936	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1860	6258056	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2069	6372304	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2071	6376240	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2071	6376520	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2072	6377824	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2072	6378216	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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.2089	6301472	OutputPage->output( )	../MediaWiki.php:583
5	0.2091	6307928	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2116	6309224	WebResponse->header( )	../OutputPage.php:2134
7	0.2116	6309368	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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.2089	6301472	OutputPage->output( )	../MediaWiki.php:583
5	0.2091	6307928	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2123	6317256	WebResponse->header( )	../OutputPage.php:2171
7	0.2123	6317400	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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.2089	6301472	OutputPage->output( )	../MediaWiki.php:583
5	0.2091	6307928	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2128	6317200	WebResponse->header( )	../OutputPage.php:2172
7	0.2128	6317344	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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.2089	6301472	OutputPage->output( )	../MediaWiki.php:583
5	0.2133	6317200	WebResponse->header( )	../OutputPage.php:2220
6	0.2133	6317344	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	240880	{main}( )	../index.php:0
2	0.0203	3789712	MediaWiki->run( )	../index.php:46
3	0.0203	3791120	MediaWiki->main( )	../MediaWiki.php:424
4	0.2089	6301472	OutputPage->output( )	../MediaWiki.php:583
5	0.2138	6317360	WebResponse->header( )	../OutputPage.php:2227
6	0.2138	6317504	header ( )	../WebResponse.php:37