SHUTDOWN

EBNF

SHUTDOWN

Description

The SHUTDOWN command gracefully shuts down the range servers by invoking the RangeServer::shutdown() command on each server. The RangeServer::shutdown() command performs the following sequence of steps:

• close the RSML (range transaction log)
• close the ROOT commit log
• close the METADATA commit log
• close the USER commit log

Hypertable must be shut down with this command when running on a filesystem such as HDFS 0.20 since it doesn't have a properly functioning fsync() operation. Any other method of shutting down the range servers could result in loss of data, or worse, inconsistent or corrupt system state.