H13-711_V3.5 · Question #246
The following figure shows the label storage strategy of HDFS. Observe the following figure, which data nodes will the HBase data be stored on? (Multiple choice)
The correct answer is A. DataNode A B. DataNode B. HDFS label storage strategy assigns node labels to DataNodes, allowing data from specific applications (like HBase) to be pinned to designated nodes with matching labels. DataNode A and DataNode B carry the label associated with the HBase storage group, so HDFS block placement…
Question
The following figure shows the label storage strategy of HDFS. Observe the following figure, which data nodes will the HBase data be stored on? (Multiple choice)
Options
- ADataNode A
- BDataNode B
- CDataNode E
- DDataNode F
How the community answered
(47 responses)- A83% (39)
- C4% (2)
- D13% (6)
Explanation
HDFS label storage strategy assigns node labels to DataNodes, allowing data from specific applications (like HBase) to be pinned to designated nodes with matching labels. DataNode A and DataNode B carry the label associated with the HBase storage group, so HDFS block placement directs all HBase data replicas to those nodes.
DataNode E and DataNode F are incorrect because they belong to a different label group (typically a "default" or separate workload label), meaning the HDFS scheduler excludes them when placing HBase blocks - they may store data for other applications but not HBase.
Memory tip: Think of node labels like VIP sections in a venue - HBase is a VIP guest that only gets seated in labeled sections (A and B); nodes E and F are in the general area and don't hold HBase data regardless of available space.
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