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public interface FSDatasetMBean
This Interface defines the methods to get the status of a the FSDataset of a data node. It is also used for publishing via JMX (hence we follow the JMX naming convention.)
Data Node runtime statistic info is report in another MBean
DataNodeStatisticsMBean
Method Summary | |
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long |
getCapacity()
Returns total capacity (in bytes) of storage (used and unused) |
long |
getDfsUsed()
Returns the total space (in bytes) used by dfs datanode |
long |
getRemaining()
Returns the amount of free storage space (in bytes) |
String |
getStorageInfo()
Returns the storage id of the underlying storage |
Method Detail |
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long getDfsUsed() throws IOException
IOException
long getCapacity() throws IOException
IOException
long getRemaining() throws IOException
IOException
String getStorageInfo()
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