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Registered: ‎01-11-2018

hdfs block capacity chart

Hi! I'd like to ask what is the actual meaning of the 'Block Capacity' chart for HDFS. The tsquery expression is known: 'SELECT block_capacity ...', but can't figure out where block_capacity is retrived from or how it is calculated.

 

The question arose after we have increased the 'Java Heap Size of NameNode in Bytes' for our Namenodes - we'd expect the block_capacity of the cluster would also grow, but actually it remains the same. Maybe we'd need to restart cluster to get this parameter updated?

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