Tag Archives: apache pig

How-to: Tune MapReduce Parallelism in Apache Pig Jobs

Categories: Guest How-to Pig

Thanks to Wuheng Luo, a Hadoop and big data architect at Sears Holdings, for the guest post below about Pig job-level performance tuning

Many factors can affect Apache Pig job performance in Apache Hadoop, including hardware, network I/O, cluster settings, code logic, and algorithm. Although the sysadmin team is responsible for monitoring many of these factors, there are other issues that MapReduce job owners or data application developers can help diagnose,

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Graduating Apache Parquet

Categories: Guest Parquet

The following post from Julien Le Dem, a tech lead at Twitter, originally appeared in the Twitter Engineering Blog. We bring it to you here for your convenience.

ASF, the Apache Software Foundation, recently announced the graduation of Apache Parquet, a columnar storage format for the Apache Hadoop ecosystem. At Twitter, we’re excited to be a founding member of the project.

Apache Parquet is built to work across programming languages,

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Text Mining with Impala

Categories: Guest Impala Use Case

Thanks to Torsten Kilias and Alexander Löser of the Beuth University of Applied Sciences in Berlin for the following guest post about their INDREX project and its integration with Impala for integrated management of textual and relational data.

Textual data is a core source of information in the enterprise. Example demands arise from sales departments (monitor and identify leads), human resources (identify professionals with capabilities in ‘xyz’), market research (campaign monitoring from the social web),

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Download the Hive-on-Spark Beta

Categories: Cloudera Labs Hive Spark

A Hive-on-Spark beta is now available via CDH parcel. Give it a try!

The Hive-on-Spark project (HIVE-7292) is one of the most watched projects in Apache Hive history. It has attracted developers from across the ecosystem, including from organizations such as Intel, MapR, IBM, and Cloudera, and gained critical help from the Spark community.

Many anxious users have inquired about its availability in the last few months.

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This Month in the Ecosystem (January 2015)

Categories: Community Hadoop

Welcome to our 16th edition of “This Month in the Ecosystem,” a digest of highlights from January 2015 (never intended to be comprehensive; for that, see the excellent Hadoop Weekly). 

You may have noticed that this report went on hiatus for December 2014 due to a lack of critical news mass (plus, we realize that most of you are out of the loop until mid-January).

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