Articles having tag: HBASE

HBase 0.94 Released: What's New

With over350 enhancements and bug fixes, 0.94 is the new major release of HBase.This Cloudera blog postdoes a good summary of the most interesting improvements: Read caching improvements Seek optimizations WAL writes optimizations added functionality to...

Notes on the Hadoop and HBase Markets

By Alex Popescu

Notes on the Hadoop and HBase Markets:Curt Monash shares what he heard from his customers: Over half of Cloudera's customers (nb100 subscription customers) use HBase Hortonworks thinks a typical enterprise Hadoop cluster has 20-50 nodes, with 50-100...

Apache Bigtop: Apache Big Data Management Distribution Based on Apache Hadoop

By Alex Popescu

Apache Bigtop: The primary goal of Bigtop is to build a community around the packaging and interoperability testing of Hadoop-related projects. This includes testing at various levels (packaging, platform, runtime, upgrade, etc\u2026) developed by a community...

Here Is Why in Cassandra vs. HBase, Riak, CouchDB, MongoDB, It's Cassandra FTW

By Alex Popescu

Here Is Why in Cassandra vs. HBase, Riak, CouchDB, MongoDB, It's Cassandra FTW:Brian ONeill: Now, since choosing Cassandra, I can say there are a few otherreallyimportant less tangible considerations. The first, is the code base. Cassandra has an extremely...

The HBase Roadmap: Where Do We Want HBase to Be in Two Years?

By Alex Popescu

The HBase Roadmap: Where Do We Want HBase to Be in Two Years?:The HBase project management committee: After further banter, we arrived at list:reliability,operability(insight into the running application, dynamic config. changes, usability improvements that...

Architecture of HBase-based Lucene Implementation

By Alex Popescu

Architecture of HBase-based Lucene Implementation:Boris Lublinsky and Mike Segel: The implementation tries to balance two conflicting requirements - performance: in memory cache can drastically improve performance by minimizing the amount of HBase reads...

ACID in HBase: Row Level Operations Explained. Plus Something New

By Alex Popescu

ACID in HBase: Row Level Operations Explained. Plus Something New:Lars Hofhansl: HBase employs a kind of MVCC. And HBase has no mixed read/write transactions. [\u2026] When a write transaction (a set of puts or deletes) starts it retrieves the next highest...

Hadoop and HBase: Configuring the Number of Server Side Threads (Xceivers)

By Alex Popescu

Hadoop and HBase: Configuring the Number of Server Side Threads (Xceivers):Prepare yourself for a very long and detailed article by Lars George explaining how to correctly configure the number of server side threads (and sockets used for data connections)\u2014...

What HBase Learned From the Hypertable vs HBase Benchmark

By Alex Popescu

Everydecent benchmarkcan reveal not only performance or stability problems, but oftentimes more subtle issues like less known or undocumented options, common misconfigurations or misunderstandings. Sometimes it can reveal scenarios that a product hasn't...

HBase Filters Explained: Let HBase Do the Data Selection Job for You

By Alex Popescu

HBase Filters Explained: Let HBase Do the Data Selection Job for You: The naive approach that consists in getting all the required data at the Client in order to apply locally some processing should be limited in a distributed setting to trivial tasks operating...