org.apache.hadoop.hbase.master.cleaner

Class HFileCleaner

java.lang.Object

org.apache.hadoop.hbase.ScheduledChore

org.apache.hadoop.hbase.master.cleaner.CleanerChore<BaseHFileCleanerDelegate>

org.apache.hadoop.hbase.master.cleaner.HFileCleaner

All Implemented Interfaces:

Runnable, ConfigurationObserver

@InterfaceAudience.Private
public class HFileCleaner
extends CleanerChore<BaseHFileCleanerDelegate>

This Chore, every time it runs, will clear the HFiles in the hfile archive folder that are deletable for each HFile cleaner in the chain.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_HFILE_DELETE_THROTTLE_THRESHOLD
static int	DEFAULT_LARGE_HFILE_DELETE_THREAD_NUMBER
static int	DEFAULT_LARGE_HFILE_QUEUE_INIT_SIZE
static int	DEFAULT_SMALL_HFILE_DELETE_THREAD_NUMBER
static int	DEFAULT_SMALL_HFILE_QUEUE_INIT_SIZE
static String	HFILE_DELETE_THREAD_CHECK_INTERVAL_MSEC
static String	HFILE_DELETE_THREAD_TIMEOUT_MSEC
static String	HFILE_DELETE_THROTTLE_THRESHOLD
static String	LARGE_HFILE_DELETE_THREAD_NUMBER
static String	LARGE_HFILE_QUEUE_INIT_SIZE
static String	MASTER_HFILE_CLEANER_PLUGINS
static String	SMALL_HFILE_DELETE_THREAD_NUMBER
static String	SMALL_HFILE_QUEUE_INIT_SIZE

Fields inherited from class org.apache.hadoop.hbase.master.cleaner.CleanerChore

CHORE_POOL_SIZE, cleanersChain, fs, params

Constructor Summary

Constructors

Constructor and Description
HFileCleaner(int period, Stoppable stopper, org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path directory)
HFileCleaner(int period, Stoppable stopper, org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path directory, Map<String,Object> params)

Method Summary

Modifier and Type	Method and Description
void	cancel(boolean mayInterruptIfRunning)
void	cleanup() Override to run cleanup tasks when the Chore encounters an error and must stop running
protected void	consumerLoop(BlockingQueue<org.apache.hadoop.hbase.master.cleaner.HFileCleaner.HFileDeleteTask> queue)
int	deleteFiles(Iterable<org.apache.hadoop.fs.FileStatus> filesToDelete) Delete the given files
List<Thread>	getCleanerThreads()
List<BaseHFileCleanerDelegate>	getDelegatesForTesting() Exposed for TESTING!
long	getLargeQueueInitSize()
long	getNumOfDeletedLargeFiles()
long	getNumOfDeletedSmallFiles()
long	getSmallQueueInitSize()
long	getThrottlePoint()
void	onConfigurationChange(org.apache.hadoop.conf.Configuration conf) This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.
protected boolean	validate(org.apache.hadoop.fs.Path file) Validate the file to see if it even belongs in the directory.

Methods inherited from class org.apache.hadoop.hbase.master.cleaner.CleanerChore

chore, getEnabled, initChorePool, runCleaner, setEnabled, shutDownChorePool

Methods inherited from class org.apache.hadoop.hbase.ScheduledChore

cancel, choreForTesting, getInitialDelay, getName, getPeriod, getStopper, getTimeUnit, initialChore, isInitialChoreComplete, isScheduled, run, toString, triggerNow

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

MASTER_HFILE_CLEANER_PLUGINS

public static final String MASTER_HFILE_CLEANER_PLUGINS

See Also:

Constant Field Values

HFILE_DELETE_THROTTLE_THRESHOLD

public static final String HFILE_DELETE_THROTTLE_THRESHOLD

See Also:

Constant Field Values

DEFAULT_HFILE_DELETE_THROTTLE_THRESHOLD

public static final int DEFAULT_HFILE_DELETE_THROTTLE_THRESHOLD

See Also:

Constant Field Values

LARGE_HFILE_QUEUE_INIT_SIZE

public static final String LARGE_HFILE_QUEUE_INIT_SIZE

See Also:

Constant Field Values

DEFAULT_LARGE_HFILE_QUEUE_INIT_SIZE

public static final int DEFAULT_LARGE_HFILE_QUEUE_INIT_SIZE

See Also:

Constant Field Values

SMALL_HFILE_QUEUE_INIT_SIZE

public static final String SMALL_HFILE_QUEUE_INIT_SIZE

See Also:

Constant Field Values

DEFAULT_SMALL_HFILE_QUEUE_INIT_SIZE

public static final int DEFAULT_SMALL_HFILE_QUEUE_INIT_SIZE

See Also:

Constant Field Values

LARGE_HFILE_DELETE_THREAD_NUMBER

public static final String LARGE_HFILE_DELETE_THREAD_NUMBER

See Also:

Constant Field Values

DEFAULT_LARGE_HFILE_DELETE_THREAD_NUMBER

public static final int DEFAULT_LARGE_HFILE_DELETE_THREAD_NUMBER

See Also:

Constant Field Values

SMALL_HFILE_DELETE_THREAD_NUMBER

public static final String SMALL_HFILE_DELETE_THREAD_NUMBER

See Also:

Constant Field Values

DEFAULT_SMALL_HFILE_DELETE_THREAD_NUMBER

public static final int DEFAULT_SMALL_HFILE_DELETE_THREAD_NUMBER

See Also:

Constant Field Values

HFILE_DELETE_THREAD_TIMEOUT_MSEC

public static final String HFILE_DELETE_THREAD_TIMEOUT_MSEC

See Also:

Constant Field Values

HFILE_DELETE_THREAD_CHECK_INTERVAL_MSEC

public static final String HFILE_DELETE_THREAD_CHECK_INTERVAL_MSEC

See Also:

Constant Field Values

Constructor Detail

HFileCleaner

public HFileCleaner(int period,
                    Stoppable stopper,
                    org.apache.hadoop.conf.Configuration conf,
                    org.apache.hadoop.fs.FileSystem fs,
                    org.apache.hadoop.fs.Path directory)

HFileCleaner

public HFileCleaner(int period,
                    Stoppable stopper,
                    org.apache.hadoop.conf.Configuration conf,
                    org.apache.hadoop.fs.FileSystem fs,
                    org.apache.hadoop.fs.Path directory,
                    Map<String,Object> params)

Parameters:

period - the period of time to sleep between each run

stopper - the stopper

conf - configuration to use

fs - handle to the FS

directory - directory to be cleaned

params - params could be used in subclass of BaseHFileCleanerDelegate

Method Detail

validate

protected boolean validate(org.apache.hadoop.fs.Path file)

Description copied from class: CleanerChore

Validate the file to see if it even belongs in the directory. If it is valid, then the file will go through the cleaner delegates, but otherwise the file is just deleted.

Specified by:

validate in class CleanerChore<BaseHFileCleanerDelegate>

Parameters:

file - full Path of the file to be checked

Returns:

true if the file is valid, false otherwise

getDelegatesForTesting

public List<BaseHFileCleanerDelegate> getDelegatesForTesting()

Exposed for TESTING!

deleteFiles

public int deleteFiles(Iterable<org.apache.hadoop.fs.FileStatus> filesToDelete)

Description copied from class: CleanerChore

Delete the given files

Overrides:

deleteFiles in class CleanerChore<BaseHFileCleanerDelegate>

Parameters:

filesToDelete - files to delete

Returns:

number of deleted files

cleanup

public void cleanup()

Description copied from class: ScheduledChore

Override to run cleanup tasks when the Chore encounters an error and must stop running

Overrides:

cleanup in class CleanerChore<BaseHFileCleanerDelegate>

consumerLoop

protected void consumerLoop(BlockingQueue<org.apache.hadoop.hbase.master.cleaner.HFileCleaner.HFileDeleteTask> queue)

getCleanerThreads

public List<Thread> getCleanerThreads()

getNumOfDeletedLargeFiles

public long getNumOfDeletedLargeFiles()

getNumOfDeletedSmallFiles

public long getNumOfDeletedSmallFiles()

getLargeQueueInitSize

public long getLargeQueueInitSize()

getSmallQueueInitSize

public long getSmallQueueInitSize()

getThrottlePoint

public long getThrottlePoint()

onConfigurationChange

public void onConfigurationChange(org.apache.hadoop.conf.Configuration conf)

Description copied from interface: ConfigurationObserver

This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.

Specified by:

onConfigurationChange in interface ConfigurationObserver

Overrides:

onConfigurationChange in class CleanerChore<BaseHFileCleanerDelegate>

cancel

public void cancel(boolean mayInterruptIfRunning)

Overrides:

cancel in class ScheduledChore