What is the significance of the WAL (Write-Ahead Log) in HBase?
- Ensuring Data Durability
- Load Balancing
- Managing Table Schema
- Reducing Latency
The Write-Ahead Log (WAL) in HBase is significant for ensuring data durability. It records changes to the data store before they are applied, acting as a safeguard in case of system failures. This mechanism enhances the reliability of data and helps in recovering from unexpected incidents.
Loading...
Related Quiz
- The integration of ____ with Hadoop allows for advanced real-time analytics on large data streams.
- The integration of Scala with Hadoop is often facilitated through the ____ framework for distributed computing.
- When configuring Kerberos for Hadoop, the ____ file is crucial for defining the realms and KDCs.
- How does data partitioning in Hadoop affect the performance of data transformation processes?
- How does Impala achieve faster query performance compared to Hive?