( ! ) Warning: Search backend error during near_match search for '18.117.158.135' after 4. 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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1910	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.5343	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.5347	4433344	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.5348	4433712	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.4250	5796160	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.5000	5802392	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.5000	5803144	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.5384	5818136	Hooks::run( )	../SearchEngine.php:231
12	1.5384	5819736	call_user_func_array ( )	../Hooks.php:209
13	1.5384	5820440	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.5486	5894472	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.5492	5940512	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.6817	6175568	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.7069	6207168	PoolCounterWork->execute( )	../Util.php:133
18	1.7071	6231424	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.7071	6231608	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.7071	6231680	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.7071	6233616	PoolCounterWork->execute( )	../Util.php:129
22	1.7171	6234264	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.7172	6234448	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.7172	6234568	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.7211	6348800	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.7213	6352736	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.7213	6353016	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.7214	6354320	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.7214	6354712	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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.7864	6278016	OutputPage->output( )	../MediaWiki.php:583
5	1.7867	6284472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7868	6285768	WebResponse->header( )	../OutputPage.php:2134
7	1.7868	6285912	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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.7864	6278016	OutputPage->output( )	../MediaWiki.php:583
5	1.7867	6284472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.8068	6293816	WebResponse->header( )	../OutputPage.php:2171
7	1.8068	6293960	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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.7864	6278016	OutputPage->output( )	../MediaWiki.php:583
5	1.7867	6284472	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.8074	6293760	WebResponse->header( )	../OutputPage.php:2172
7	1.8074	6293904	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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.7864	6278016	OutputPage->output( )	../MediaWiki.php:583
5	1.8078	6293760	WebResponse->header( )	../OutputPage.php:2220
6	1.8078	6293904	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	0.0662	3376416	MediaWiki->run( )	../index.php:46
3	0.0662	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.7864	6278016	OutputPage->output( )	../MediaWiki.php:583
5	1.8368	6293920	WebResponse->header( )	../OutputPage.php:2227
6	1.8368	6294064	header ( )	../WebResponse.php:37