( ! ) Warning: Search backend error during near_match search for '18.216.245.161' after 2. 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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.0379	3551592	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0641	4379144	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0645	4433064	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0646	4433432	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1600	5795288	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1714	5801544	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1714	5802296	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1779	5817288	Hooks::run( )	../SearchEngine.php:231
12	0.1779	5818888	call_user_func_array ( )	../Hooks.php:209
13	0.1779	5819592	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1782	5893616	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1786	5939656	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1807	6174712	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1809	6206296	PoolCounterWork->execute( )	../Util.php:133
18	0.1810	6230552	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1810	6230736	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1810	6230808	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1811	6232744	PoolCounterWork->execute( )	../Util.php:129
22	0.1811	6233392	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1811	6233576	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1811	6233696	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1827	6347944	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1829	6351880	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1829	6352160	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1830	6353464	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1830	6353856	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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1916	6277160	OutputPage->output( )	../MediaWiki.php:583
5	0.1918	6283616	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1919	6284912	WebResponse->header( )	../OutputPage.php:2134
7	0.1919	6285056	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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1916	6277160	OutputPage->output( )	../MediaWiki.php:583
5	0.1918	6283616	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1926	6292944	WebResponse->header( )	../OutputPage.php:2171
7	0.1926	6293088	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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1916	6277160	OutputPage->output( )	../MediaWiki.php:583
5	0.1918	6283616	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1931	6292888	WebResponse->header( )	../OutputPage.php:2172
7	0.1931	6293032	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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1916	6277160	OutputPage->output( )	../MediaWiki.php:583
5	0.1936	6292888	WebResponse->header( )	../OutputPage.php:2220
6	0.1936	6293032	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	0.0109	3376096	MediaWiki->run( )	../index.php:46
3	0.0110	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.1916	6277160	OutputPage->output( )	../MediaWiki.php:583
5	0.1968	6293048	WebResponse->header( )	../OutputPage.php:2227
6	0.1968	6293192	header ( )	../WebResponse.php:37