Hive: Apache Hive is a data warehouse infrastructure built on top of Hadoop for providing data summarization, query, and analysis. HBase: Apache HBase™ is the Hadoop database, a distributed, scalable, big data store Hawq: http://hawq.incubator.apache.org/ PXF: PXF is an extensible framework that allows HAWQ to query external system data Let's learn Query federation This topic describes how to access Hive data using PXF. Link Previously, in order to query Hive tables using HAWQ and PXF, you needed to create an external table in PXF that described the target table's Hive metadata. Since HAWQ is now integrated with HCatalog, HAWQ can use metadata stored in HCatalog instead of external tables created for PXF. HCatalog is built on top of the Hive metastore and incorporates Hive's DDL. This provides several advantages: You do not need to know the table schema of your Hive tables You do not need to manually enter information about Hive table location or format If Hive table metadata changes, HCatalog provides updated metadata. This is in contrast to the use of static external PXF tables to define Hive table metadata for HAWQ. HAWQ retrieves table metadata from HCatalog using PXF. HAWQ creates in-memory catalog tables from the retrieved metadata. If a table is referenced multiple times in a transaction, HAWQ uses its in-memory metadata to reduce external calls to HCatalog. PXF queries Hive using table metadata that is stored in the HAWQ in-memory catalog tables. Table metadata is dropped at the end of the transaction. Demo Tools used Hive,Hawq,Zeppelin HBase tables Follow this to create hbase tables perl create_hbase_tables.pl Create table in HAWQ to access HBASE table Note: Port is 51200 not 50070 Links Gist PXF docs Must see this Zeppelin interpreter settings ... View more

Chronos is a replacement for cron. A fault tolerant job scheduler for Mesos which handles dependencies and ISO8601 based schedules Marathon is a framework for Mesos that is designed to launch long-running applications, and, in Mesosphere, serves as a replacement for a traditional system In Mesosphere, Chronos compliments Marathon as it provides another way to run applications, according to a schedule or other conditions, such as the completion of another job. It is also capable of scheduling jobs on multiple Mesos slave nodes, and provides statistics about job failures and successes. Source Install https://mesos.github.io/chronos/docs/ and gist ... View more