Thanks for your interest. I am not familiar with DSE Search internals, so I can only express some impressions. In my opinion, both projects have similarities, but there are several key differences:
- DSE Solr, if I'm not wrong, runs in a separate JVM preserving its APIs and interfaces, while Stratio's Lucene index is embedded inside Cassandra and tightly integrated with it. Each has its own set of pros and cons. - DSE Search provides several search engine features that are not yet provided by Stratio's Lucene index, such as faceting, highlighting, etc. We are working to bring as many of this features as we can to Apache Cassandra. - Stratio's Lucene index filters can be used in conjunction with Cassandra's Spark/Hadoop support in order to speed up table mapping. Perhaps Apache Solr has a good integration with this mapreduce frameworks, I don't know if DSE provides this kind of feature out-of-the-box. - Stratio's Lucene index is open source, which is always a good thing. Finally, I think that they are not mutually exclusive tools and they can be used together and separately depending on the scenarios. I hope it helps, 2015-06-15 18:08 GMT+02:00 Matthew Johnson <matt.john...@algomi.com>: > Hi Andres, > > > > This looks awesome, many thanks for your work on this. Just out of > curiosity, how does this compare to the DSE Cassandra with embedded Solr? > Do they provide very similar functionality? Is there a list of obvious pros > and cons of one versus the other? > > > > Thanks! > > Matthew > > > > > > *From:* Andres de la Peña [mailto:adelap...@stratio.com] > *Sent:* 13 June 2015 13:20 > > *To:* user@cassandra.apache.org > *Subject:* Re: Lucene index plugin for Apache Cassandra > > > > Thanks for showing interest. > > > > Faceting is not yet supported, but it is in our roadmap. Our goal is to > add to Cassandra as many Lucene features as possible. > > > > 2015-06-12 18:21 GMT+02:00 Mohammed Guller <moham...@glassbeam.com>: > > The plugin looks cool. Thank you for open sourcing it. > > > > Does it support faceting and other Solr functionality? > > > > Mohammed > > > > *From:* Andres de la Peña [mailto:adelap...@stratio.com] > *Sent:* Friday, June 12, 2015 3:43 AM > *To:* user@cassandra.apache.org > *Subject:* Re: Lucene index plugin for Apache Cassandra > > > > I really appreciate your interest > > > > Well, the first recommendation is to not use it unless you need it, > because a properly Cassandra denormalized model is almost always preferable > to indexing. Lucene indexing is a good option when there is no viable > denormalization alternative. This is the case of range queries over > multiple dimensions, full-text search or maybe complex boolean predicates. > It's also appropriate for Spark/Hadoop jobs mapping a small fraction of the > total amount of rows in a certain table, if you can pay the cost of > indexing. > > > > Lucene indexes run inside C*, so users should closely monitor the amount > of used memory. It's also a good idea to put the Lucene directory files in > a separate disk to those used by C* itself. Additionally, you should > consider that indexed tables write throughput will be appreciably reduced, > maybe to a few thousands rows per second. > > > > It's really hard to estimate the amount of resources needed by the index > due to the great variety of indexing and querying ways that Lucene offers, > so the only thing we can suggest is to empirically find the optimal setup > for your use case. > > > > 2015-06-12 12:00 GMT+02:00 Carlos Rolo <r...@pythian.com>: > > Seems like an interesting tool! > > What operational recommendations would you make to users of this tool > (Extra hardware capacity, extra metrics to monitor, etc)? > > > Regards, > > > > Carlos Juzarte Rolo > > Cassandra Consultant > > > > Pythian - Love your data > > > > rolo@pythian | Twitter: cjrolo | Linkedin: *linkedin.com/in/carlosjuzarterolo > <http://linkedin.com/in/carlosjuzarterolo>* > > Mobile: +31 6 159 61 814 | Tel: +1 613 565 8696 x1649 > > www.pythian.com > > > > On Fri, Jun 12, 2015 at 11:07 AM, Andres de la Peña <adelap...@stratio.com> > wrote: > > Unfortunately, we don't have published any benchmarks yet, but we have > plans to do it as soon as possible. However, you can expect a similar > behavior as those of Elasticsearch or Solr, with some overhead due to the > need for indexing both the Cassandra's row key and the partition's token. > You can also take a look at this presentation > <http://planetcassandra.org/video-presentations/vp/cassandra-summit-europe-2014/vd/stratio-advanced-search-and-top-k-queries-in-cassandra/> > to see how cluster distribution is done. > > > > 2015-06-12 0:45 GMT+02:00 Ben Bromhead <b...@instaclustr.com>: > > Looks awesome, do you have any examples/benchmarks of using these indexes > for various cluster sizes e.g. 20 nodes, 60 nodes, 100s+? > > > > On 10 June 2015 at 09:08, Andres de la Peña <adelap...@stratio.com> wrote: > > Hi all, > > > > With the release of Cassandra 2.1.6, Stratio is glad to present its open > source Lucene-based implementation of C* secondary indexes > <https://github.com/Stratio/cassandra-lucene-index> as a plugin that can > be attached to Apache Cassandra. Before the above changes, Lucene index was > distributed inside a fork of Apache Cassandra, with all the difficulties > implied. As of now, the fork is discontinued and new users should use the > recently created plugin, which maintains all the features of Stratio > Cassandra <https://github.com/Stratio/stratio-cassandra>. > > > > Stratio's Lucene index extends Cassandra’s functionality to provide near > real-time distributed search engine capabilities such as with ElasticSearch > or Solr, including full text search capabilities, free multivariable > search, relevance queries and field-based sorting. Each node indexes its > own data, so high availability and scalability is guaranteed. > > > > We hope this will be useful to the Apache Cassandra community. > > > > Regards, > > > > -- > > > Andrés de la Peña > > > > <http://www.stratio.com/> > Avenida de Europa, 26. Ática 5. 3ª Planta > > 28224 Pozuelo de Alarcón, Madrid > > Tel: +34 91 352 59 42 // *@stratiobd <https://twitter.com/StratioBD>* > > > > > > -- > > Ben Bromhead > > Instaclustr | www.instaclustr.com | @instaclustr > <http://twitter.com/instaclustr> | (650) 284 9692 > > > > > > -- > > > Andrés de la Peña > > > > <http://www.stratio.com/> > Avenida de Europa, 26. Ática 5. 3ª Planta > > 28224 Pozuelo de Alarcón, Madrid > > Tel: +34 91 352 59 42 // *@stratiobd <https://twitter.com/StratioBD>* > > > > > > -- > > > > > > > > -- > > > Andrés de la Peña > > > > <http://www.stratio.com/> > Avenida de Europa, 26. Ática 5. 3ª Planta > > 28224 Pozuelo de Alarcón, Madrid > > Tel: +34 91 352 59 42 // *@stratiobd <https://twitter.com/StratioBD>* > > > > > > -- > > > Andrés de la Peña > > > > <http://www.stratio.com/> > Avenida de Europa, 26. Ática 5. 3ª Planta > > 28224 Pozuelo de Alarcón, Madrid > > Tel: +34 91 352 59 42 // *@stratiobd <https://twitter.com/StratioBD>* > -- Andrés de la Peña <http://www.stratio.com/> Avenida de Europa, 26. Ática 5. 3ª Planta 28224 Pozuelo de Alarcón, Madrid Tel: +34 91 352 59 42 // *@stratiobd <https://twitter.com/StratioBD>*
