I’m wrapping up a little side project at the moment (more on that very soon) which required full-text search, autocomplete, and a few other bits of search related functionality.
After some research I landed upon the combination of Elasticsearch and the awesome Django application Haystack.
First step was to get Elasticsearch up and running locally on OS X…
1) Download latest zip from http://www.elasticsearch.org/overview/elkdownloads/. A good spot is:
/opt/elasticsearch-1.1.x
2) Create the following directories:
/opt/elasticsearch-1.1.x/data
/opt/elasticsearch-1.1.x/work
/opt/elasticsearch-1.1.x/logs
3) Add the following to your .profile (allows you to run Elasticsearch from the command prompt without the full path):
| # elasticsearch | |
| export ES_HOME=/opt/elasticsearch-1.1.x | |
| PATH=$ES_HOME/bin:$PATH |
4) Update the following values in the Elasticsearch config file:
| # /opt/elasticsearch-1.1.x/config/elasticsearch.yml | |
| discovery.zen.ping.multicast.enabled: false | |
| discovery.zen.ping.unicast.hosts: ["127.0.0.1"] | |
| cluster.name: elasticsearch | |
| network.host: 127.0.0.1 | |
| http.port: 9200 | |
| path.conf: /opt/elasticsearch-1.1.x/config | |
| path.data: /opt/elasticsearch-1.1.x/data | |
| path.work: /opt/elasticsearch-1.1.x/work | |
| path.logs: /opt/elasticsearch-1.1.x/logs |
5) Ensure all requirements are installed (django-haystack, pyelasticsearch, requests, simplejson):
| pip install django-haystack | |
| pip install pyelasticsearch |
6) You should now be able to start Elasticsearch:
| $ elasticsearch | |
| [2014-05-14 08:15:05,257][INFO ][node ] [Aminedi] version[1.1.1], pid[46224], build[f1585f0/2014-04-16T14:27:12Z] | |
| [2014-05-14 08:15:05,258][INFO ][node ] [Aminedi] initializing … | |
| [2014-05-14 08:15:05,271][INFO ][plugins ] [Aminedi] loaded [], sites [] | |
| [2014-05-14 08:15:07,136][INFO ][node ] [Aminedi] initialized | |
| [2014-05-14 08:15:07,136][INFO ][node ] [Aminedi] starting … | |
| [2014-05-14 08:15:07,211][INFO ][transport ] [Aminedi] bound_address {inet[/127.0.0.1:9300]}, publish_address {inet[/127.0.0.1:9300]} | |
| [2014-05-14 08:15:10,262][INFO ][cluster.service ] [Aminedi] new_master [Aminedi][X4diAes4TrOMTk4eAdbhnA][mbp.home][inet[/127.0.0.1:9300]], reason: zen-disco-join (elected_as_master) | |
| [2014-05-14 08:15:10,284][INFO ][discovery ] [Aminedi] elasticsearch/X4diAes4TrOMTk4eAdbhnA | |
| [2014-05-14 08:15:10,298][INFO ][http ] [Aminedi] bound_address {inet[/127.0.0.1:9200]}, publish_address {inet[/127.0.0.1:9200]} | |
| [2014-05-14 08:15:10,784][INFO ][gateway ] [Aminedi] recovered [1] indices into cluster_state | |
| [2014-05-14 08:15:10,785][INFO ][node ] [Aminedi] started |
7) Add Haystack to your Django config:
| # add to installed apps | |
| INSTALLED_APPS = ( | |
| … | |
| 'haystack', | |
| … | |
| ) | |
| # haystack search using elasticsearch | |
| HAYSTACK_CONNECTIONS = { | |
| 'default': { | |
| 'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine', | |
| 'URL': 'http://127.0.0.1:9200/', | |
| 'INDEX_NAME': 'haystack', | |
| }, | |
| } | |
| # http://django-haystack.readthedocs.org/en/latest/signal_processors.html | |
| HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor' | |
| # increase the default number of results (from 20) | |
| HAYSTACK_SEARCH_RESULTS_PER_PAGE = 40 |
8) After you’ve added your search indexes, you can use manage.py to rebuild the search index:
$ python manage.py rebuild_index
Hey, I setup all of these and I understand how it works but when I was trying to search with OR operator HAYSTACK_DEFAULT_OPERATOR = ‘OR’ by modifying the default, I get empty results and my objective is to be able to filter search results with OR not AND can I find a complete tutorials on this?
I haven’t actually used the HAYSTACK_DEFAULT_OPERATOR setting before. Seems like it should just work by setting it to ‘OR’. I don’t see any bug tickets for it not working correctly.
Okay I will keep trying!