org.apache.tephra

Class TxConstants.Manager

java.lang.Object

org.apache.tephra.TxConstants.Manager

Enclosing class:

TxConstants

public static final class TxConstants.Manager
extends Object

TransactionManager configuration.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CFG_DO_PERSIST
static String	CFG_TX_CLEANUP_INTERVAL How often to clean up timed out transactions, in seconds, or 0 for no cleanup.
static String	CFG_TX_HDFS_USER The user id to access HDFS if not running in secure HDFS.
static String	CFG_TX_LONG_TIMEOUT The timeout for a long running transaction, in seconds.
static String	CFG_TX_SNAPSHOT_DIR Directory in HDFS used for transaction snapshot and log storage.
static String	CFG_TX_SNAPSHOT_INTERVAL The frequency (in seconds) to perform periodic snapshots, or 0 for no periodic snapshots.
static String	CFG_TX_SNAPSHOT_LOCAL_DIR Directory on the local filesystem used for transaction snapshot and log storage.
static String	CFG_TX_SNAPSHOT_RETAIN Number of most recent transaction snapshots to retain.
static String	CFG_TX_TIMEOUT The timeout for a transaction, in seconds.
static int	DEFAULT_TX_CLEANUP_INTERVAL Default value for how often to check in-progress transactions for expiration, in seconds.
static int	DEFAULT_TX_LONG_TIMEOUT Default value for long running transaction timeout, in seconds.
static long	DEFAULT_TX_SNAPSHOT_INTERVAL Default value for frequency of periodic snapshots of transaction state.
static int	DEFAULT_TX_SNAPSHOT_RETAIN Default value for number of most recent snapshots to retain.
static int	DEFAULT_TX_TIMEOUT Default value for transaction timeout, in seconds.

Constructor Summary

Constructors

Constructor and Description
TxConstants.Manager()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

CFG_DO_PERSIST

public static final String CFG_DO_PERSIST

See Also:

Constant Field Values

CFG_TX_SNAPSHOT_DIR

public static final String CFG_TX_SNAPSHOT_DIR

Directory in HDFS used for transaction snapshot and log storage.

See Also:

Constant Field Values

CFG_TX_SNAPSHOT_LOCAL_DIR

public static final String CFG_TX_SNAPSHOT_LOCAL_DIR

Directory on the local filesystem used for transaction snapshot and log storage.

See Also:

Constant Field Values

CFG_TX_CLEANUP_INTERVAL

public static final String CFG_TX_CLEANUP_INTERVAL

How often to clean up timed out transactions, in seconds, or 0 for no cleanup.

See Also:

Constant Field Values

CFG_TX_HDFS_USER

public static final String CFG_TX_HDFS_USER

The user id to access HDFS if not running in secure HDFS.

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Constant Field Values

DEFAULT_TX_CLEANUP_INTERVAL

public static final int DEFAULT_TX_CLEANUP_INTERVAL

Default value for how often to check in-progress transactions for expiration, in seconds.

See Also:

Constant Field Values

CFG_TX_TIMEOUT

public static final String CFG_TX_TIMEOUT

The timeout for a transaction, in seconds. If the transaction is not finished in that time, it is marked invalid.

See Also:

Constant Field Values

DEFAULT_TX_TIMEOUT

public static final int DEFAULT_TX_TIMEOUT

Default value for transaction timeout, in seconds.

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Constant Field Values

CFG_TX_LONG_TIMEOUT

public static final String CFG_TX_LONG_TIMEOUT

The timeout for a long running transaction, in seconds. If the transaction is not finished in that time, it is marked invalid.

See Also:

Constant Field Values

DEFAULT_TX_LONG_TIMEOUT

public static final int DEFAULT_TX_LONG_TIMEOUT

Default value for long running transaction timeout, in seconds.

CFG_TX_SNAPSHOT_INTERVAL

public static final String CFG_TX_SNAPSHOT_INTERVAL

The frequency (in seconds) to perform periodic snapshots, or 0 for no periodic snapshots.

See Also:

Constant Field Values

DEFAULT_TX_SNAPSHOT_INTERVAL

public static final long DEFAULT_TX_SNAPSHOT_INTERVAL

Default value for frequency of periodic snapshots of transaction state.

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Constant Field Values

CFG_TX_SNAPSHOT_RETAIN

public static final String CFG_TX_SNAPSHOT_RETAIN

Number of most recent transaction snapshots to retain.

See Also:

Constant Field Values

DEFAULT_TX_SNAPSHOT_RETAIN

public static final int DEFAULT_TX_SNAPSHOT_RETAIN

Default value for number of most recent snapshots to retain.

See Also:

Constant Field Values

Constructor Detail

TxConstants.Manager

public TxConstants.Manager()