( ! ) Warning: Search backend error during near_match search for '18.221.11.166' after 3. 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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0193	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0340	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0344	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0345	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1393	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1451	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1451	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1474	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.1474	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.1474	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1479	5894272	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1487	5940296	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1521	6175352	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1524	6206936	PoolCounterWork->execute( )	../Util.php:133
18	0.1526	6231192	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1526	6231376	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1526	6231448	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1526	6233384	PoolCounterWork->execute( )	../Util.php:129
22	0.1526	6234032	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1526	6234216	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1526	6234336	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1557	6348592	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1558	6352528	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1558	6352808	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1560	6354112	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1560	6354504	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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1580	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.1582	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1583	6285576	WebResponse->header( )	../OutputPage.php:2134
7	0.1583	6285720	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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1580	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.1582	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1589	6293624	WebResponse->header( )	../OutputPage.php:2171
7	0.1589	6293768	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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1580	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.1582	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1595	6293568	WebResponse->header( )	../OutputPage.php:2172
7	0.1595	6293712	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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1580	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.1600	6293568	WebResponse->header( )	../OutputPage.php:2220
6	0.1600	6293712	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	0.0100	3376416	MediaWiki->run( )	../index.php:46
3	0.0101	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1580	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.1606	6293728	WebResponse->header( )	../OutputPage.php:2227
6	0.1606	6293872	header ( )	../WebResponse.php:37