@InterfaceAudience.Public @InterfaceStability.Unstable public class LevelDBFileRegionAliasMap extends BlockAliasMap<FileRegion> implements Configurable
BlockAliasMap.| Modifier and Type | Field and Description |
|---|---|
static org.slf4j.Logger |
LOG |
| Constructor and Description |
|---|
LevelDBFileRegionAliasMap() |
| Modifier and Type | Method and Description |
|---|---|
void |
close() |
Configuration |
getConf()
Return the configuration used by this object.
|
org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Reader<FileRegion> |
getReader(org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Reader.Options opts,
String blockPoolID)
Returns a reader to the alias map.
|
org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Writer<FileRegion> |
getWriter(org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Writer.Options opts,
String blockPoolID)
Returns the writer for the alias map.
|
void |
refresh()
Refresh the alias map.
|
void |
setConf(Configuration conf)
Set the configuration to be used by this object.
|
public void setConf(Configuration conf)
ConfigurablesetConf in interface Configurableconf - configuration to be usedpublic Configuration getConf()
ConfigurablegetConf in interface Configurablepublic org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Reader<FileRegion> getReader(org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Reader.Options opts, String blockPoolID) throws IOException
BlockAliasMapgetReader in class BlockAliasMap<FileRegion>opts - reader optionsblockPoolID - block pool id to useBlockAliasMap.Reader to the alias map. If a Reader for the blockPoolID
cannot be created, this will return null.IOExceptionpublic org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Writer<FileRegion> getWriter(org.apache.hadoop.hdfs.server.common.blockaliasmap.BlockAliasMap.Writer.Options opts, String blockPoolID) throws IOException
BlockAliasMapgetWriter in class BlockAliasMap<FileRegion>opts - writer options.blockPoolID - block pool id to useBlockAliasMap.Writer to the alias map.IOExceptionpublic void refresh()
throws IOException
BlockAliasMaprefresh in class BlockAliasMap<FileRegion>IOExceptionpublic void close()
throws IOException
close in class BlockAliasMap<FileRegion>IOExceptionCopyright © 2024 Apache Software Foundation. All rights reserved.