( ! ) Warning: Search backend error during near_match search for '3.15.231.194' 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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1670	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2536	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2540	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2540	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.6895	5795880	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.7193	5802136	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.7193	5802888	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.7266	5817888	Hooks::run( )	../SearchEngine.php:231
12	0.7267	5819488	call_user_func_array ( )	../Hooks.php:209
13	0.7267	5820192	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.7270	5894232	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.7282	5940256	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.7359	6175360	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.7360	6206960	PoolCounterWork->execute( )	../Util.php:133
18	0.7362	6231216	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.7362	6231400	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.7362	6231472	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.7362	6233408	PoolCounterWork->execute( )	../Util.php:129
22	0.7362	6234056	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.7362	6234240	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.7362	6234360	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.7530	6348608	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.7532	6352544	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.7532	6352824	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.7533	6354128	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.7533	6354520	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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7551	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.7553	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7554	6285544	WebResponse->header( )	../OutputPage.php:2134
7	0.7554	6285688	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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7551	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.7553	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7569	6293576	WebResponse->header( )	../OutputPage.php:2171
7	0.7569	6293720	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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7551	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.7553	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7574	6293520	WebResponse->header( )	../OutputPage.php:2172
7	0.7574	6293664	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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7551	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.7579	6293520	WebResponse->header( )	../OutputPage.php:2220
6	0.7579	6293664	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	233960	{main}( )	../index.php:0
2	0.0882	3376416	MediaWiki->run( )	../index.php:46
3	0.0883	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7551	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.7585	6293680	WebResponse->header( )	../OutputPage.php:2227
6	0.7585	6293824	header ( )	../WebResponse.php:37