org.apache.hadoop.hbase.master.cleaner
Class HFileLinkCleaner
java.lang.Object
org.apache.hadoop.hbase.BaseConfigurable
org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate
org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate
org.apache.hadoop.hbase.master.cleaner.HFileLinkCleaner
- All Implemented Interfaces:
- org.apache.hadoop.conf.Configurable, FileCleanerDelegate, Stoppable
@InterfaceAudience.LimitedPrivate(value="Configuration")
public class HFileLinkCleaner
- extends BaseHFileCleanerDelegate
HFileLink cleaner that determines if a hfile should be deleted.
HFiles can be deleted only if there're no links to them.
When a HFileLink is created a back reference file is created in:
/hbase/archive/table/region/cf/.links-hfile/ref-region.ref-table
To check if the hfile can be deleted the back references folder must be empty.
Method Summary |
boolean |
isFileDeletable(org.apache.hadoop.fs.FileStatus fStat)
Should the master delete the file or keep it? |
void |
setConf(org.apache.hadoop.conf.Configuration conf)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.hadoop.conf.Configurable |
getConf |
HFileLinkCleaner
public HFileLinkCleaner()
isFileDeletable
public boolean isFileDeletable(org.apache.hadoop.fs.FileStatus fStat)
- Description copied from class:
BaseFileCleanerDelegate
- Should the master delete the file or keep it?
- Specified by:
isFileDeletable
in class BaseFileCleanerDelegate
- Parameters:
fStat
- file status of the file to check
- Returns:
- true if the file is deletable, false if not
setConf
public void setConf(org.apache.hadoop.conf.Configuration conf)
- Specified by:
setConf
in interface org.apache.hadoop.conf.Configurable
- Overrides:
setConf
in class BaseConfigurable
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