G. Configuration Checklist

Item	Notes/Reference
Hardware correctly sized?	Have the Hadoop vendor's recommendations been followed? See Cluster Environment: Hardware and Software.
Hardware working correctly?	Are disk and network performance as expected? See “Results Calibration” in References and Further Information.
Disks set up correctly?	Are the disks set up in accordance with the Hadoop vendor's recommendations?
OS set up correctly?	Have Linux/Hadoop recommendations been followed? (Swap space, Transparent Huge Pages, Transparent Huge Pages Defragmentation, and so on.). See Transparent Huge Pages and Defragmentation.
Correctly sized HDFS replication factor?	Generally the HDFS replication factor should be no more than 3; for small clusters (where the cluster is hosted in a single rack) it can be reduced to 2.
VectorH prerequisites met?	See Pre-installation Tasks.
VectorH post installation tasks carried out?	See Post Installation Tasks.
VectorH installation is functioning correctly?	See Connecting to the Installation in the Getting Started guide.
Database creation succeeds?	See Creating and Removing Databases.
Performance test kit performs as expected?	See References and Further Information.
Partitioning scheme is clear for schema?	See Partitioning Tables and Table Partitioning.
Loading and indexing factors considered?	See Ordered Data and Indexing.
Statistics generated?	See Generating Statistics.