org.apache.hadoop.hbase.regionserver.wal

Class HLogKey

java.lang.Object

org.apache.hadoop.hbase.wal.WALKey

org.apache.hadoop.hbase.regionserver.wal.HLogKey

All Implemented Interfaces:

Comparable<WALKey>, SequenceId, org.apache.hadoop.io.Writable

Direct Known Subclasses:

ReplayHLogKey

Deprecated.

use WALKey

@InterfaceAudience.LimitedPrivate(value="Replication")
@Deprecated
public class HLogKey
extends WALKey
implements org.apache.hadoop.io.Writable

A Key for an entry in the change log. The log intermingles edits to many tables and rows, so each log entry identifies the appropriate table and row. Within a table and row, they're also sorted.

Some Transactional edits (START, COMMIT, ABORT) will not have an associated row.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.wal.WALKey

WALKey.Version

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG Deprecated.

Fields inherited from class org.apache.hadoop.hbase.wal.WALKey

clusterIds, compressionContext, encodedRegionName, logSeqNum, NO_SEQUENCE_ID, tablename, VERSION, writeTime

Constructor Summary

Constructors

Constructor and Description
HLogKey() Deprecated.
HLogKey(byte[] encodedRegionName, TableName tablename) Deprecated.
HLogKey(byte[] encodedRegionName, TableName tablename, long now) Deprecated.
HLogKey(byte[] encodedRegionName, TableName tablename, long now, List<UUID> clusterIds, long nonceGroup, long nonce) Deprecated. Create the log key for writing to somewhere.
HLogKey(byte[] encodedRegionName, TableName tablename, long logSeqNum, long now, List<UUID> clusterIds, long nonceGroup, long nonce) Deprecated. Create the log key for writing to somewhere.
HLogKey(byte[] encodedRegionName, TableName tablename, long logSeqNum, long nonceGroup, long nonce) Deprecated. Create the log key for writing to somewhere.
HLogKey(byte[] encodedRegionName, TableName tablename, long logSeqNum, long now, UUID clusterId) Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
void	readFields(DataInput in) Deprecated.
void	write(DataOutput out) Deprecated. Don't use these Writables methods. Use PB instead.

Methods inherited from class org.apache.hadoop.hbase.wal.WALKey

addClusterId, compareTo, equals, getBuilder, getClusterIds, getEncodedRegionName, getLogSeqNum, getNonce, getNonceGroup, getOriginatingClusterId, getOrigLogSeqNum, getScopes, getSequenceId, getSequenceId, getTablename, getWriteTime, hashCode, init, readFieldsFromPb, readOlderScopes, setCompressionContext, setLogSeqNum, setOrigLogSeqNum, setScopes, toString, toStringMap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Deprecated.

Constructor Detail

HLogKey

public HLogKey()

Deprecated.

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename,
       long logSeqNum,
       long now,
       UUID clusterId)

Deprecated.

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename)

Deprecated.

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename,
       long now)

Deprecated.

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename,
       long logSeqNum,
       long now,
       List<UUID> clusterIds,
       long nonceGroup,
       long nonce)

Deprecated.

Create the log key for writing to somewhere. We maintain the tablename mainly for debugging purposes. A regionName is always a sub-table object.

Used by log splitting and snapshots.

Parameters:

encodedRegionName - Encoded name of the region as returned by HRegionInfo#getEncodedNameAsBytes().

tablename - - name of table

logSeqNum - - log sequence number

now - Time at which this edit was written.

clusterIds - the clusters that have consumed the change(used in Replication)

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename,
       long now,
       List<UUID> clusterIds,
       long nonceGroup,
       long nonce)

Deprecated.

Create the log key for writing to somewhere. We maintain the tablename mainly for debugging purposes. A regionName is always a sub-table object.

Parameters:

encodedRegionName - Encoded name of the region as returned by HRegionInfo#getEncodedNameAsBytes().

tablename -

now - Time at which this edit was written.

clusterIds - the clusters that have consumed the change(used in Replication)

nonceGroup -

nonce -

HLogKey

public HLogKey(byte[] encodedRegionName,
       TableName tablename,
       long logSeqNum,
       long nonceGroup,
       long nonce)

Deprecated.

Create the log key for writing to somewhere. We maintain the tablename mainly for debugging purposes. A regionName is always a sub-table object.

Parameters:

encodedRegionName - Encoded name of the region as returned by HRegionInfo#getEncodedNameAsBytes().

tablename -

logSeqNum -

nonceGroup -

nonce -

Method Detail

write

@Deprecated
public void write(DataOutput out)
           throws IOException

Deprecated. Don't use these Writables methods. Use PB instead.

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Deprecated.

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException