Table 2.
Big data technology comparisons for IoT streaming in telemonitoring.
| Study #1 | Study #2 | Study #3 | Study #4 | Study #5 | |
|---|---|---|---|---|---|
| Big data technology | KUDU | Hive | Cassandra | HBase | Elasticsearch |
| Big data Interface | Library | JDBC | Library | Library | RapidMQ |
| (1) Insert data∗ | |||||
| Insert 100 b/100k rows | 1.54 | 13,207.80 | 1.11 | 1.22 | 0.34 |
| Insert 1 kb/100k rows | 1.70 | No response | No response | 1.31 | 0.75 |
| Insert 10 kb/100k rows | 2.73 | No response | No response | 2.73 | 7.30 |
| Insert 100 kb/100k rows | 17.72675 | No response | No response | 23.4235 | 13.33 |
| (2) Select data∗ | |||||
| Select 1 row | 800.00 | 19,709.20 | No response | 1,000.00 | 230 |
| Select 5 rows | 800.00 | 21,882.20 | No response | No response | 450 |
| (3) Architecture | Master/slave | Master/slave | Multimaster | Master/slave | Master/slave |
| (4) File structure | Distributed DB | Hadoop | Distributed DB | Hadoop | Database |
| (5) Storage fault tolerant | Multicopies | Multicopies | Multicopies | Multicopies | Multicopies |
| (6) Large volume data access for analytics | Average | Best | Worse | Worse | Average |
| (7) Access data by key | No | No | Yes | No | No |
| (8) Built-in visualization | No | No | No | No | Best |
| (9) Min. server required | 3 | 5 | 3 | 3 | 3 |
| (10) Security | |||||
| Client-node encryption | TLS/SSL | TLS/SSL | N/A | TLS/SSL | |
| Web UI encryption | TLS/SSL | N/A | N/A | ||
| Peer node authentication | N/A | N/A | N/A | ||
| User authentication | Kerberos | Internal | Kerberos | ||
| Authentication tokens | Y | N/A | Kerberos |
∗A unit of measurement is a response time (millisecond) per 1 transaction.