Did you ever wonder if you can create a backup of your index with the tools available in Solr ? For exmaple after every commit or optimize operation ? Or may you would like to create backups with the HTTP API call ? Lets see what possibilities Solr has to offer.
Solr
Apache Lucene and Solr 3.6.1
Today Apache Lucene and Solr PMC announced another version of Apache Lucene library and Apache Solr search server numbred 3.6.1. This is a minor bugfix release concentrated mainly on bugfixes in Apache Lucene library.
Solr 4.0: Partial documents update
As Lucene and Solr are slowly showing up on the horizon I decided to take a look at another Solr feature which may be very useful for users – partial document update.
Apache Lucene and Solr 4.0 alpha
Developing Your Own ExchangeRateProvider for CurrencyField Type
In the previous entry showing how to develop custom Solr functionalities we are showing how to implement your own Solr filter. Today I’ll show you how to implement your own exchange rate provider, so we will implement the ExchangeRateProvider for the CurrencyField type introduced in Solr 3.6.
Rich documents processing – on the search or application side?
When indexing so called “rich documents” we should sometimes think about, where we want those documents to be processes – should we send them to Apache Solr (or other search engine, like ElasticSearch) and forget about them or whether we should use Apache Tika before sending the document and send the extracted content along with other information for indexation.
Autcomplete, part 4 (Ngram and faceting)
In the previous parts of autocomplete series we presented two methods of autocomplete queries. Than we extended one of those with the ability to define returned information. In todays entry we are back to autocomplete with facet and ngram.
Developing Your Own Solr Filter
Sometimes Lucene and Solr out of the box functionality is not enough. When such time comes, we need to extend what Lucene and Solr gives us and create our own plugin. In todays post I’ll try to show how to develop a custom filter and use it in Solr.
Solr 4.0: DirectSolrSpellChecker
One of the new features, which will be introduces with Solr 4.0 is a new SpellChecker implementation, which doesn’t require its own index. I decided to take a quick look at it and share my thoughts.