Some comments: Searching for `program:apache` actually search in field `program`.
Searching with wildcards is something you really should not do! Actually when you do full text search on Google, I guess you don’t use wildcards, right? It’s not really user friendly. So wildcards are extremely slow and even slower when you start with *! Look here for reference: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html#query-dsl-wildcard-query <http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html#query-dsl-wildcard-query> Searching in _all field is also something you should not do but it depends on your use case. I’d prefer using copy_to feature in mapping instead of using _all field. Now, I think it depends on your infra. How many nodes, RAM, … you have. -- David Pilato | Technical Advocate | Elasticsearch.com @dadoonet <https://twitter.com/dadoonet> | @elasticsearchfr <https://twitter.com/elasticsearchfr> | @scrutmydocs <https://twitter.com/scrutmydocs> > Le 28 nov. 2014 à 10:44, horst knete <[email protected]> a écrit : > > Hey guys, > > we are experience poor performance if we do some "full text" ( searches > without specifying an field name). > > If we search in an 200 GB index which lays on SSDs for something like ' > program:apache ' the search takes about 10-15 seconds, if we search for ' > *apache* ' the whole search goes for 1,5-2 minutes. > > What can cause this? Our mapping? the high heap of the SSD ES node ( 80gb + > ~90 GB available Lucene system memory)? Is it normal? > > If you need any information, please let me know. > > thanks for any respond > > > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/a3a41710-93b4-4e81-93a7-6cde43e5c387%40googlegroups.com > > <https://groups.google.com/d/msgid/elasticsearch/a3a41710-93b4-4e81-93a7-6cde43e5c387%40googlegroups.com?utm_medium=email&utm_source=footer>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/A82C3E01-6F67-4E32-86F2-9E9432818780%40pilato.fr. For more options, visit https://groups.google.com/d/optout.
