This document contains information about Altoros Systems and their Chief Technology Officer Andrei Yurkevich. It discusses Altoros' services including Hadoop performance engineering and cloud automation. It also includes details about their global employee size, customers, and partners. Later sections evaluate different cloud platform options and database technologies for building a data analytics prototype within budget and functional requirements.
Everything seemed to be smooth. However, there was just one slight detail about MySQL Cluster. Its architecture requires putting all data into RAM, so we needed a cluster that would have 2.5 TB of RAM. The actual deployment cost was about $500 up the budget. So, we had to start from scratch again.
HBase was 2 seconds faster than Cassandra but what about fault tolerance? HBase has additional node that serves as a coordinator for the entire system. If it fails – the system fails. Surely we can add a secondary management node, but then we may exceed the budget. Cassandra has decentralized architecture it means that all nodes of its cluster have equal roles and every node can serve as a coordinator. It makes this database extremely fault tolerant.
raw data – is all data that comes from sensorsprocessed data – is the data that was aggregated for each 10 minutes. This data is used for building reports.