Nutch is a well matured, production ready Web crawler. Nutch 1.x enables fine grained configuration, relying on Apache Hadoop™ data structures, which are great for batch processing.
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Being pluggable and modular of course has it's benefits, Nutch provides extensible interfaces such as Parse, Index and ScoringFilter's for custom implementations e.g. Apache Tika™ for parsing. Additonally, pluggable indexing exists for Apache Solr™, Elastic Search, SolrCloud, etc.
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Nutch 2.X branch is becoming an emerging alternative taking direct inspiration from 1.X. 2.X differs in one key area; storage is abstracted away from any specific underlying data store by using Apache Gora™ for handling object to persistent data store mappings.
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The Apache Nutch PMC are pleased to announce the immediate release of Apache Nutch v2.3, we advise all current users and developers of the 2.X series to upgrade to this release. After successful completion of the first Nutch Google Summer of Code project we are pleased to announce that Nutch 2.3 release now comes packaged with a self contained Apache Wicket-based Web Application.
This release is the result of many months of work and 143 issues addressed. For a complete overview of these issues please see the release report.
As usual in the 2.x series, this release is made available only as source, but is also available within Maven Central as a Maven dependency. The release is available from our DOWNLAODS PAGE.
The supported Apache Gora v0.5 backends are;
Please note that the SQL backend for Gora has been deprecated.
After successful completion of the first Nutch Google Summer of Code project we are pleased to announce that Nutch 2.X branch now comes packaged with a self contained Apache Wicket-based Web Application.
This not only greatly lowers the barrier for direct interaction with the Nutch 2.X REST API but also provides a stepping stone from which we intend to backport this work to the Nutch 1.X (trunk) series.
Some of the Web Application features include:
The new Web Application feature will be present within the upcoming Nutch 2.3 Release.
The Apache Nutch PMC are pleased to announce the immediate release of Apache Nutch v1.9, we advise all current users and developers of the 1.X series to upgrade to this release. This release addressed no fewer than 55 issues in total. Please see the list of changes for a full breakdown, or see the release report. As usual in the 1.X series, this release is made available both as source and binary. Additionally developers can find Maven artifacts within Maven Central. The release is available here.
The upcoming ApacheCon Europe in Budapest, November 17 - 21, 2014, will offer a one-day Nutch tutorial. Topics will span from Nutch installation and configuration up to plugin development. Both Nutch 1.x and 2.x are covered. The conference is a good opportunity to bring together both users and committers of Nutch and related projects.
For the first time in Nutch project history, we are participating as part of Apache's mentoring efforts in the ever popular Google Summer of Code program. This years project involves the creation of a Apache Wicket-based Web Application for Nutch 2.X branch.
Keep your eyes peeled and check here for updates as the project progresses throughout the summer.
lots of talk and loads of exposure for this at ApacheCon NA 2014 in the beautiful city of Denver, CO. This year one presentation focused on Building your Big Data Search Stack with Apache Nutch 2.x. You can see presentation slides below and follow the audio (sorry no video) here
.The Apache Nutch PMC are pleased to announce the immediate release of Apache Nutch v1.8, we advise all current users and developers of the 1.X series to upgrade to this release. Alhough this release includes library upgrades to Crawler Commons 0.3 and Apache Tika 1.5, it also provides over 30 bug fixes as well as 18 improvements. Please see the list of changes for a full breakdown, or see the release report. As usual in the 1.X series, this release is made available both as source and binary. Additionally developers can find Maven artifacts within Maven Central. The release is available here.
The Apache Nutch PMC are pleased to announce the immediate release of Apache Nutch v2.2.1, we advise all current users and developers of the 2.X series to upgrade to this release ASAP. Although this release includes library upgrades to Apache Hadoop 1.2.0 and Apache Tika 1.3, it is predominantly a bug fix for NUTCH-1591 - Incorrect conversion of ByteBuffer to String. Please see the list of changes for a full breakdown, or see the release report. As usual in the 2.x series, this release is made available only as source, but is also available within Maven Central. The release is available here.
The Apache Nutch PMC are extremely pleased to announce the immediate release of Apache Nutch v1.7. This release includes over 20 bug fixes, as many improvements; most noticeably featuring a new pluggable indexing architecture which currently supports Apache Solr and Elastic Search. Shadowing the recent Nutch 2.2 release, parsing of Robots.txt is now delegated to Crawler-Commons. Key library upgrades have been made to Apache Hadoop 1.2.0 and Apache Tika 1.3. Please see the list of changes or the release report made in this version for a full breakdown. As usual in the 1.x series, the release is made available as binary and source (zip + tar.gz) and is also available within Maven Central. The release is available here.
The Apache Nutch PMC are extremely pleased to announce the immediate release of Apache Nutch v2.2. This release includes over 30 bug fixes and over 25 improvements representing the third release of increasingly popular 2.x Nutch series. This release features inclusion of Crawler-Commons which Nutch now utilizes for improved robots.txt parsing, library upgrades to Apache Hadoop 1.1.1, Apache Gora 0.3, Apache Tika 1.2 and Automaton 1.11-8. Please see the list of changes or the release report made in this version for a full breakdown. As usual in the 2.x series, this release is made available only as source, but is also available within Maven Central. The release is available here.
The Apache Nutch PMC are extremely pleased to announce the release of Apache Nutch v1.6. This release includes over 20 bug fixes, the same in improvements, as well as new functionalities including a new HostNormalizer, the ability to dynamically set fetchInterval by MIME-type and functional enhancements to the Indexer API inluding the normalization of URL's and the deletion of robots noIndex documents. Other notable improvements include the upgrade of key dependencies to Tika 1.2 and Automaton 1.11-8. Please see the list of changes or the release report made in this version for a full breakdown. The release is available here.
The Apache Nutch PMC are very pleased to announce the release of Apache Nutch v2.1. This release continues to provide Nutch users with a simplified Nutch distribution building on the 2.x development drive which is growing in popularity amongst the community. As well as addressing ~20 bugs this release also offers improved properties for better Solr configuration, upgrades to various Gora dependencies and the introduction of the option to build indexes in elastic search. Please see the list of changes made in this version for a full breakdown. The release is available here.
It's official, Apache Nutch is now a decade old! The project has come a long long way since inception, through acceptance into the Apache Incubator way back in Janurary 2005, to the Top Level Project it became on 21st April 2010. Happy birthday Nutch and thanks to all contributors past and present! See Doug Cutting's tweet.
The Apache Nutch PMC are very pleased to announce the release of Apache Nutch v1.5.1. This release is a maintainence release of the popular 1.5.X mainstream version of Nutch which has been widely adopted within the community. Please see the list of changes made in this version for a full breakdown. The release is available here.
The Apache Nutch PMC are very pleased to announce the release of Apache Nutch v2.0. This release offers users an edition focused on large scale crawling which builds on storage abstraction (via Apache Gora™) for big data stores such as Apache Accumulo™, Apache Avro™, Apache Cassandra™, Apache HBase™, HDFS™, an in memory data store and various high profile SQL stores. After some two years of development Nutch v2.0 also offers all of the mainstream Nutch functionality and it builds on Apache Solr™ adding web-specifics, such as a crawler, a link-graph database and parsing support handled by Apache Tika™ for HTML and an array other document formats. Nutch v2.0 shadows the latest stable mainstream release (v1.5.X) based on Apache Hadoop™ and covers many use cases from small crawls on a single machine to large scale deployments on Hadoop clusters. Please see the list of changes made in this version for a full breakdown. The release is available here.
The 1.5 release of Nutch is now available. This release includes several improvements including upgrades of several major components including Tika 1.1 and Hadoop 1.0.0, improvements to LinkRank and WebGraph elements as well as a number of new plugins covering blacklisting, filering and parsing to name a few. Please see the list of changes made in this version for a full breakdown of the 50 odd improvements the release boasts. The release is available here.
The 1.4 release of Nutch is now available. This release includes several improvements including allowing Parsers to declare support for multiple MIME types, configurable Fetcher Queue depth, Fetcher speed improvements, tigther Tika integration, and support for HTTP auth in Solr indexing. Please see the list of changes made in this version. The release is available here.
After some discussion and a vote about the issue, the Nutch development community decided to focus their efforts on maintaining and releasing the 1.x series of Nutch, and to branch the now former Nutch trunk based on Gora, allowing others to try and improve it, while the mainline development goes on.
The 1.3 release of Nutch is now available. This release includes several improvements (improved RSS parsing support, tighter integration with Apache Tika, external parsing support, improved language identification and an order of magnitude smaller source release tarball -- only about 2MB!). Please see the list of changes made in this version. The release is available here.
The 1.2 release of Nutch is now available. This release includes several improvements (addition
of parse-html as a selectable parser again, configurable per-field indexing),
new features (including adding timing information to all Tool classes, and implementation of
parser timeouts), and bug fixes (fixing an NPE in distributed search, fixing of XML formatting
issues per Document fields). Please see the
list of changes made in this version. The release is available
here.
The 1.1 release of Nutch is now available. This release includes several major upgrades of existing libraries (Hadoop, Solr, Tika, etc.) on which Nutch depends. Various bug fixes, and speedups (e.g., to Fetcher2) have also been included. See list of changes made in this version. The release is available here.
Passed by unanimous approval of the Apache Board, Nutch graduated to TLP status. We are in the process of updating the website, and moving things around, so if you notice anything out of place, please let us know.
ApacheCon US is once again in the Bay Area and Lucene is coming
along for the ride! The Lucene community has planned two full
days of talks, plus a meetup and the usual bevy of training.
With a well-balanced mix of first time and veteran ApacheCon
speakers, the
Lucene track
at ApacheCon US promises to have something for everyone. Be sure
not to miss:
Training:
Thursday, Nov. 5th
Friday, Nov. 6th
The 1.0 release of Nutch is now available. This release includes several major feature improvements such as new indexing framework, new scoring framework, Apache Solr integration just to mention a few. See list of changes made in this version. The release is available here.
Lucene will be extremely well represented at
ApacheCon EU 2009
in Amsterdam, Netherlands this March 23-27, 2009:
The 0.9 release of Nutch is now available. This is the second release of Nutch based entirely on the underlying Hadoop platform. This release includes several critical bug fixes, as well as key speedups described in more detail at Sami Siren's blog. See list of changes made in this version. The release is available here.
The 0.8.1 release of Nutch is now available. This is a maintenance release to 0.8 branch fixing many serous bugs found in version 0.8. See list of changes made in this version. The release is available here.
The 0.8 release of Nutch is now available. This is the first release of Nutch based on hadoop architecure. See CHANGES.txt for list of changes made in this version. The release is available here.
The 0.7.2 release of Nutch is now available. This is a bug fix release for 0.7 branch. See CHANGES.txt for details. The release is available here.
The 0.7.1 release of Nutch is now available. This is a bug fix release. See CHANGES.txt for details. The release is available here.
This is the first Nutch release as an Apache Lucene sub-project. See CHANGES.txt for details. The release is available here.
Nutch has now graduated from the Apache incubator, and is now a Subproject of Lucene.
Nutch is a two-year-old open source project, previously hosted at Sourceforge and backed by its own non-profit organization. The non-profit was founded in order to assign copyright, so that we could retain the right to change the license. We have now determined that the Apache license is the appropriate license for Nutch and no longer require the overhead of an independent non-profit organization. Nutch's board of directors and its developers were both polled and supported the move to the Apache foundation.
Creative Commons unveiled a beta version of its search engine, which scours the web for text, images, audio, and video free to re-use on certain terms a search refinement offered by no other company or organization.
See the Creative Commons Press Release for more details.
Oregon State University is converting its searching infrastructure from Googletm to the open source project Nutch. The effort to replace the Googletm will realize significant cost savings for Oregon State University, while promoting both the Nutch Search Engine and transparency in search engine use and management.
For more details see the announcement by OSU's Open Source Lab.
The Apache Nutch site was constructed using several photo's fetched from Flickr using Nutch. These photo's are licensed under the Creative Commons Attribution-ShareAlike 2.0 Generic.
The photos are as follows
