org.apache.accumulo.core.replication

Class ReplicationSchema.OrderSection

java.lang.Object

org.apache.accumulo.core.replication.ReplicationSchema.OrderSection

Enclosing class:

ReplicationSchema

public static class ReplicationSchema.OrderSection
extends Object

Holds the order in which files needed for replication were closed. The intent is to be able to guarantee that files which were closed earlier were replicated first and we don't replay data in the wrong order on our peers

encodedTimeOfClosure\x00hdfs://localhost:8020/accumulo/wal/tserver+port/WAL order:source_table_id [] -> Status Protobuf

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.hadoop.io.Text	NAME
static org.apache.hadoop.io.Text	ROW_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
ReplicationSchema.OrderSection()

Method Summary

Methods

Modifier and Type	Method and Description
static Mutation	add(Mutation m, org.apache.hadoop.io.Text tableId, Value v) Add a column update to the given mutation with the provided tableId and value
static Mutation	createMutation(String file, long timeInMillis) Creates the Mutation for the Order section for the given file and time
static String	getFile(Key k)
static String	getFile(Key k, org.apache.hadoop.io.Text buff)
static String	getTableId(Key k) Extract the table ID from the given key (inefficiently if called repeatedly)
static void	getTableId(Key k, org.apache.hadoop.io.Text buff) Extract the table ID from the given key
static long	getTimeClosed(Key k)
static long	getTimeClosed(Key k, org.apache.hadoop.io.Text buff)
static void	limit(ScannerBase scanner) Limit the scanner to only return Order records

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final org.apache.hadoop.io.Text NAME

ROW_SEPARATOR

public static final org.apache.hadoop.io.Text ROW_SEPARATOR

Constructor Detail

ReplicationSchema.OrderSection

public ReplicationSchema.OrderSection()

Method Detail

getTableId

public static String getTableId(Key k)

Extract the table ID from the given key (inefficiently if called repeatedly)

Parameters:

k - OrderSection Key

Returns:

source table id

getTableId

public static void getTableId(Key k,
              org.apache.hadoop.io.Text buff)

Extract the table ID from the given key

Parameters:

k - OrderSection key

buff - Text to place table ID into

limit

public static void limit(ScannerBase scanner)

Limit the scanner to only return Order records

createMutation

public static Mutation createMutation(String file,
                      long timeInMillis)

Creates the Mutation for the Order section for the given file and time

Parameters:

file - Filename

timeInMillis - Time in millis that the file was closed

Returns:

Mutation for the Order section

add

public static Mutation add(Mutation m,
           org.apache.hadoop.io.Text tableId,
           Value v)

Add a column update to the given mutation with the provided tableId and value

Parameters:

m - Mutation for OrderSection

tableId - Source table id

v - Serialized Status msg

Returns:

The original Mutation

getTimeClosed

public static long getTimeClosed(Key k)

getTimeClosed

public static long getTimeClosed(Key k,
                 org.apache.hadoop.io.Text buff)

getFile

public static String getFile(Key k)

getFile

public static String getFile(Key k,
             org.apache.hadoop.io.Text buff)