org.apache.hadoop.hive.common.repl

Class ReplConst

java.lang.Object

org.apache.hadoop.hive.common.repl.ReplConst

public class ReplConst
extends Object

A class that defines the constant strings used by the replication implementation.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReplConst.FailoverType Type of failover

Field Summary

Fields

Modifier and Type	Field and Description
static String	BOOTSTRAP_DUMP_STATE_KEY_PREFIX
static String	READ_ONLY_HOOK
static String	REPL_DATA_LOCATION_CHANGED The constant that denotes the table data location is changed to different path.
static String	REPL_ENABLE_BACKGROUND_THREAD Database level prop to enable background threads for the database irrespective of other replication props.
static String	REPL_FAILOVER_ENDPOINT Database level prop to identify the failover endPoint of the database.
static String	REPL_FIRST_INC_PENDING_FLAG
static String	REPL_INCOMPATIBLE
static String	REPL_IS_CUSTOM_DB_LOC
static String	REPL_IS_CUSTOM_DB_MANAGEDLOC
static String	REPL_METRICS_FAILBACK_COUNT
static String	REPL_METRICS_FAILOVER_COUNT Database level property to keep track of failover and failback metrics Property values are set during failover and optimised bootstrap time.
static String	REPL_METRICS_LAST_FAILBACK_ENDTIME
static String	REPL_METRICS_LAST_FAILBACK_STARTTIME
static String	REPL_METRICS_LAST_FAILOVER_TYPE
static String	REPL_RESUME_STARTED_AFTER_FAILOVER Indicates initiation of RESUME action.
static String	REPL_TARGET_DATABASE_PROPERTY Tracks the event id with respect to the target cluster.
static String	REPL_TARGET_DB_PROPERTY The constant string literal added as a property of database being replicated into.
static String	REPL_TARGET_TABLE_PROPERTY A table which is target of replication will have this property set.
static String	SOURCE_OF_REPLICATION
static String	TARGET_OF_REPLICATION
static String	TRUE

Constructor Summary

Constructors

Constructor and Description
ReplConst()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

REPL_DATA_LOCATION_CHANGED

public static final String REPL_DATA_LOCATION_CHANGED

The constant that denotes the table data location is changed to different path. This indicates Metastore to update corresponding path in Partitions and also need to delete old path.

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Constant Field Values

TRUE

public static final String TRUE

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Constant Field Values

REPL_TARGET_DB_PROPERTY

public static final String REPL_TARGET_DB_PROPERTY

The constant string literal added as a property of database being replicated into. We choose this property over other properties is because this property is added right when the database is created as part of repl load and survives the incremental cycles.

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Constant Field Values

REPL_TARGET_TABLE_PROPERTY

public static final String REPL_TARGET_TABLE_PROPERTY

A table which is target of replication will have this property set. The property serves two purposes, 1. identifies the tables being replicated into and 2. records the event id of the last event affecting this table.

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Constant Field Values

REPL_FAILOVER_ENDPOINT

public static final String REPL_FAILOVER_ENDPOINT

Database level prop to identify the failover endPoint of the database. It is set during planned failover and unset or removed after optimised bootstrap is completed. During unplanned failover this prop is not set

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Constant Field Values

TARGET_OF_REPLICATION

public static final String TARGET_OF_REPLICATION

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Constant Field Values

REPL_INCOMPATIBLE

public static final String REPL_INCOMPATIBLE

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Constant Field Values

REPL_ENABLE_BACKGROUND_THREAD

public static final String REPL_ENABLE_BACKGROUND_THREAD

Database level prop to enable background threads for the database irrespective of other replication props.

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Constant Field Values

REPL_TARGET_DATABASE_PROPERTY

public static final String REPL_TARGET_DATABASE_PROPERTY

Tracks the event id with respect to the target cluster.

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Constant Field Values

REPL_RESUME_STARTED_AFTER_FAILOVER

public static final String REPL_RESUME_STARTED_AFTER_FAILOVER

Indicates initiation of RESUME action. This property can be used to avoid updation of "repl.target.last.id" when "repl.last.id" is changed(This behaviour is currently used in RESUME workflow). This property will be removed after second cycle of Optimised bootstrap.

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Constant Field Values

SOURCE_OF_REPLICATION

public static final String SOURCE_OF_REPLICATION

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Constant Field Values

REPL_FIRST_INC_PENDING_FLAG

public static final String REPL_FIRST_INC_PENDING_FLAG

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Constant Field Values

REPL_IS_CUSTOM_DB_LOC

public static final String REPL_IS_CUSTOM_DB_LOC

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Constant Field Values

REPL_IS_CUSTOM_DB_MANAGEDLOC

public static final String REPL_IS_CUSTOM_DB_MANAGEDLOC

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Constant Field Values

BOOTSTRAP_DUMP_STATE_KEY_PREFIX

public static final String BOOTSTRAP_DUMP_STATE_KEY_PREFIX

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Constant Field Values

READ_ONLY_HOOK

public static final String READ_ONLY_HOOK

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Constant Field Values

REPL_METRICS_FAILOVER_COUNT

public static final String REPL_METRICS_FAILOVER_COUNT

Database level property to keep track of failover and failback metrics Property values are set during failover and optimised bootstrap time.

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Constant Field Values

REPL_METRICS_LAST_FAILOVER_TYPE

public static final String REPL_METRICS_LAST_FAILOVER_TYPE

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Constant Field Values

REPL_METRICS_FAILBACK_COUNT

public static final String REPL_METRICS_FAILBACK_COUNT

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Constant Field Values

REPL_METRICS_LAST_FAILBACK_STARTTIME

public static final String REPL_METRICS_LAST_FAILBACK_STARTTIME

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Constant Field Values

REPL_METRICS_LAST_FAILBACK_ENDTIME

public static final String REPL_METRICS_LAST_FAILBACK_ENDTIME

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Constant Field Values

Constructor Detail

ReplConst

public ReplConst()