Browse Research and Tech Reports - Computer Science by Author "Ghosh, Mainak"

  • Ghosh, Mainak; Gupta, Indranil; Gupta, Shalmoli; Kumar, Nirman (2015-04-27)
    Compaction plays a crucial role in NoSQL systems to ensure a high overall read throughput. In this work, we formally define compaction as an optimization problem that attempts to minimize disk I/O.We prove this problem to ...

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  • Ghosh, Mainak; Xu, Le; Qian, Xiaoyao; Kao, Thomas; Gupta, Indranil; Gupta, Himanshu (2016-03-08)
    Distributed interactive analytics engines (Druid, Redshift, Pinot) need to achieve low query latency while using the least storage space. This paper presents a solution to the problem of replication of data blocks and ...

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  • Ghosh, Mainak; Wang, Wenting; Holla Vakwadi, Gopalakrishna; Gupta, Indranil (2014)
    While sharded NoSQL stores offer high availability, reconfiguration operations present a major pain point in deployments today. For instance, in order to change a configuration setting such as the shard (or primary) key ...

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  • Shin, Yosub; Ghosh, Mainak; Gupta, Indranil (2015-07-07)
    The performance of key-value/NoSQL storage systems is highly tied to the choice of (primary) key for the database table. As application (e.g., business) requirements change over time, and in order to fine-tune the performance ...

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