org.apache.accumulo.gc

Class GarbageCollectWriteAheadLogs

java.lang.Object

org.apache.accumulo.gc.GarbageCollectWriteAheadLogs

public class GarbageCollectWriteAheadLogs
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
void	collect(GCStatus status)
protected Iterable<Map.Entry<Key,Value>>	getReplicationStatusForFile(Connector conn, String wal)
protected boolean	neededByReplication(Connector conn, String wal) Determine if the given WAL is needed for replication
protected int	removeMetadataEntries(Map<String,org.apache.hadoop.fs.Path> nameToFileMap, Map<String,org.apache.hadoop.fs.Path> sortedWALogs, GCStatus status)
protected int	removeReplicationEntries(Map<String,org.apache.hadoop.fs.Path> nameToFileMap, Map<String,org.apache.hadoop.fs.Path> sortedWALogs, GCStatus status)

Methods inherited from class java.lang.Object

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

Method Detail

collect

public void collect(GCStatus status)

removeMetadataEntries

protected int removeMetadataEntries(Map<String,org.apache.hadoop.fs.Path> nameToFileMap,
                        Map<String,org.apache.hadoop.fs.Path> sortedWALogs,
                        GCStatus status)
                             throws IOException,
                                    org.apache.zookeeper.KeeperException,
                                    InterruptedException

Throws:

IOException

org.apache.zookeeper.KeeperException

InterruptedException

removeReplicationEntries

protected int removeReplicationEntries(Map<String,org.apache.hadoop.fs.Path> nameToFileMap,
                           Map<String,org.apache.hadoop.fs.Path> sortedWALogs,
                           GCStatus status)
                                throws IOException,
                                       org.apache.zookeeper.KeeperException,
                                       InterruptedException

Throws:

IOException

org.apache.zookeeper.KeeperException

InterruptedException

neededByReplication

protected boolean neededByReplication(Connector conn,
                          String wal)

Determine if the given WAL is needed for replication

Parameters:

wal - The full path (URI)

Returns:

True if the WAL is still needed by replication (not a candidate for deletion)

getReplicationStatusForFile

protected Iterable<Map.Entry<Key,Value>> getReplicationStatusForFile(Connector conn,
                                                         String wal)