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public interface HConnection
Method Summary | |
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void |
close(Text tableName)
Discard all the information about this table |
HRegionInterface |
getHRegionConnection(HServerAddress regionServer)
Establishes a connection to the region server at the specified address. |
HMasterInterface |
getMaster()
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boolean |
isMasterRunning()
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HTableDescriptor[] |
listTables()
List all the userspace tables. |
HRegionLocation |
locateRegion(Text tableName,
Text row)
Find the location of the region of tableName that row lives in. |
HRegionLocation |
relocateRegion(Text tableName,
Text row)
Find the location of the region of tableName that row lives in, ignoring any value that might be in the cache. |
boolean |
tableExists(Text tableName)
Checks if tableName exists. |
Method Detail |
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HMasterInterface getMaster() throws MasterNotRunningException
MasterNotRunningException
boolean isMasterRunning()
boolean tableExists(Text tableName)
tableName
exists.
tableName
- Table to check.
HTableDescriptor[] listTables() throws IOException
IOException
HRegionLocation locateRegion(Text tableName, Text row) throws IOException
tableName
- name of the table row is inrow
- row key you're trying to find the region of
IOException
HRegionLocation relocateRegion(Text tableName, Text row) throws IOException
tableName
- name of the table row is inrow
- row key you're trying to find the region of
IOException
HRegionInterface getHRegionConnection(HServerAddress regionServer) throws IOException
regionServer
- - the server to connect to
IOException
void close(Text tableName)
tableName
- the name of the table to close
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