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Online Solr Training from Sematext – December 2019

Rafał Kuć Training 19 November 201914 November 2020solr, training 0 Comment

Our own Rafał will have the pleasure to deliver the December Solr training as a part of Sematext university. The incoming training will consist of:

Lucene and Solr 8.3.0

Rafał Kuć Lucene, Solr 3 November 201914 November 2020lucene, release, solr 0 Comment

It is a pleasure to inform that the new version of the Lucene library and Solr search server has been released. It is the next release from the 8.x branch and it is numbered 8.3.0. This release introduces fixes for the bugs found in the previous versions along with new features.

Category Routed Aliases

Rafał Kuć Solr 21 October 201914 November 2020collection, field, routed, routing, solr 0 Comment

Through the lifetime of Solr we were given the possibility to work with cores, then collections and finally aliases – the alternative names for collections. Aliases allow the user to give your collection a new, virtual name and group multiple collections under that single virtual name. This allows isolation of the real collection name from the name that the client application is using. That allows changing the collection in the background without the need of bringing down the whole cluster and make your application or product unavailable. In Solr we have the option to use two aliases groups:

Read-Only Collections

Rafał Kuć Solr 7 October 201914 November 2020read-only, solr 0 Comment

Have you ever wonder how to avoid accidental or on purpose modification of the collection data? Of course, we could reject the access and it is one of the possible solutions, but it is not always possible. In today’s blog post we will look into how to easily protect your collection from accidental modifications by setting it to be read-only.

Lucene and Solr 8.2.0

Rafał Kuć Lucene, Solr 27 July 201914 November 2020lucene, release, solr 0 Comment

It is a pleasure to inform that the new version of the Lucene library and Solr search server has been released. It is the next release from the 8.x branch and it is numbered 8.2.0. This release introduces fixes for the bugs found in the 8.1.0 and 8.1.1 versions and new features.

Lucene and Solr 7.7.2

Rafał Kuć Lucene, Solr 5 June 201914 November 2020lucene, release, solr 0 Comment

It is a pleasure to inform that the new version of Lucene library and Solr search server has been released. It is the next release from the 7.x branch and it is numbered 7.7.2. This release introduces fixes for the bugs found in the 7.7.1 version.

Lucene and Solr 8.1.1

Rafał Kuć Lucene, Solr 28 May 201914 November 2020lucene, release, solr 0 Comment

It is a pleasure to inform that the new version of Lucene library and Solr search server has been released. It is the next release from the 8.x branch and it is numbered 8.1.1. This release introduces fixes for the bugs found in the 8.1 version.

Distributed IDF

Rafał Kuć Solr 20 May 201914 November 2020distributed, idf, relevancy, solr 0 Comment

When Lucene and Solr searches through the data, each document is assigned a score that is calculated on the basis of query terms statistics. When using SolrCloud and our data inside the collection is distributed among multiple shards we are hit by a problem of not exact inverse document frequency calculation. The problem can be defined in the following way – each shard stores the term statistics locally and doesn’t share that with other shards during query execution. Can we do something about it to have more precise IDF calculation? Let’s see what we can do about it.

Lucene and Solr 8.1.0

Rafał Kuć Lucene, Solr 16 May 201914 November 2020lucene, release, solr 0 Comment

It is a pleasure to inform that the new version of Lucene library and Solr search server has been released. It is the next release from the 8.x branch and it is numbered 8.1.0. This release introduces fixes for the bugs found in the 8.0 version and new features.

Solr 8 – ByteBuffersDirectory – quick look

Rafał Kuć Solr 15 April 201914 November 20208.0, directory, solr 0 Comment

One of the new features introduced in the recently released Solr 8.0 is new implementation of the Directory interface – one that will replace not scalable RAMDirectory. The new implementation called ByteBuffersDirectory is dedicated to small, short lived data that is held only in memory. Let’s have a quick look into potential use cases, advantages and drawbacks of this new implementation.