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Student e-mail: sreejith.code AT gmail DOT com

*Project Idea JIRA: https://issues.apache.org/jira/browse/ACCUMULO-1256* *

1. Abstract

Apache Accumulo is a highly scalable structured store based on Google’s BigTable. Accumulo is written in Java and operates over the HDFS (Hadoop Distributed File System). It is a richer data model than key-value stores. Yet, it is not a fully relational database. Accumulo provides efficient storage and retrieval of structured data and the support for Accumulo tables to be used as input/output in MapReduce operations.

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• general.trash.enable - Used to enable trashing feature in Accumulo. Can be done at runtime without restarts
• general.trash.timeout - Used to set the maximum time after which the tables in trash will be deleted automatically
• general.trash.maxspace  - Used to set the maximum space allotted for tables in trash. When the space is exceeded, the table with oldest delete timestamp can be discarded to make space.

3. Diagram