Cassandra, Apache Cassandra & It’s Database Db

Cassandra, Apache Cassandra & It's Database Db

Apache Cassandra is one type of Nosql database.Cassandra Database was open source ed by Facebook in July 2008.Cassandra database original version written by an ex employees of Amazon and one from Microsoft . Cassandra mainly influenced by Amazon Dynamo db and google big table. Apache Cassandra is highly scalable and high performance distributed database designed […]

How Facebook uses Hadoop and Hive

Hadoop Facebook

How Facebook uses Hadoop and Hive Most of the IT Companies are using Hadoop technology why because which can store large datasets and process large datasets.In Hadoop ecosystem which have database(HBase),datawarehouse(Hive),these two components are very useful to storing transcational data in hbase and generate reports by using hive.In traditional RDBMS supports upto certain limit of […]

Apache Phoenix Over HBase

Apache Phoenix Over HBase

Apache Phoenix Over HBase   Apache Phoenix is a SQL skin over HBase delivered as a client-embedded JDBC driver targeting low latency queries over HBase data(Apache Phoenix Over HBase). Apache Phoenix takes your SQL query, compiles it into a series of HBase scans, and orchestrates the running of those scans to produce regular JDBC result […]

Filters In Hbase Shell

Filter In Hbase Shell

  Filters In Hbase Shell Filters In Hbase Shell,Filter Language was introduced in APache HBase 0.92. It allows you to perform server-side filtering when accessing HBase over Thrift or in the HBase shell. You can find out more about shell integration by using the scan help command in the shell.  Let us see list of filters […]

Hbase Shell Commands

Hbase Shell Commands

Hbase Shell Commands   HBase shell commands are mainly categorized into 6 parts 1) General Hbase Shell commands Show cluster status. Can be ‘summary’, ‘simple’, or ‘detailed’. Thedefault is ‘summary’.   2) Tables Management commands Alter column family schema; pass table name and a dictionary specifying new column family schema. Dictionaries are described on the […]