com.gpudb.protocol

Class AlterTierRequest.Options

java.lang.Object

com.gpudb.protocol.AlterTierRequest.Options

Enclosing class:

AlterTierRequest

public static final class AlterTierRequest.Options
extends Object

Optional parameters.

• CAPACITY: Maximum size in bytes this tier may hold at once.
• HIGH_WATERMARK: Threshold of usage of this tier's resource that once exceeded, will trigger watermark-based eviction from this tier.
• LOW_WATERMARK: Threshold of resource usage that once fallen below after crossing the high_watermark, will cease watermark-based eviction from this tier.
• WAIT_TIMEOUT: Timeout in seconds for reading from or writing to this resource. Applies to cold storage tiers only.
• PERSIST: If true the system configuration will be written to disk upon successful application of this request. This will commit the changes from this request and any additional in-memory modifications. Supported values:
  • TRUE
  • FALSE
  The default value is TRUE.
• RANK: Apply the requested change only to a specific rank.

The default value is an empty Map. A set of string constants for the parameter options.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CAPACITY Maximum size in bytes this tier may hold at once.
static String	FALSE
static String	HIGH_WATERMARK Threshold of usage of this tier's resource that once exceeded, will trigger watermark-based eviction from this tier.
static String	LOW_WATERMARK Threshold of resource usage that once fallen below after crossing the high_watermark, will cease watermark-based eviction from this tier.
static String	PERSIST If true the system configuration will be written to disk upon successful application of this request.
static String	RANK Apply the requested change only to a specific rank.
static String	TRUE
static String	WAIT_TIMEOUT Timeout in seconds for reading from or writing to this resource.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

CAPACITY

public static final String CAPACITY

Maximum size in bytes this tier may hold at once.

See Also:

Constant Field Values

HIGH_WATERMARK

public static final String HIGH_WATERMARK

Threshold of usage of this tier's resource that once exceeded, will trigger watermark-based eviction from this tier.

See Also:

Constant Field Values

LOW_WATERMARK

public static final String LOW_WATERMARK

Threshold of resource usage that once fallen below after crossing the high_watermark, will cease watermark-based eviction from this tier.

See Also:

Constant Field Values

WAIT_TIMEOUT

public static final String WAIT_TIMEOUT

Timeout in seconds for reading from or writing to this resource. Applies to cold storage tiers only.

See Also:

Constant Field Values

PERSIST

public static final String PERSIST

If true the system configuration will be written to disk upon successful application of this request. This will commit the changes from this request and any additional in-memory modifications. Supported values:

• TRUE
• FALSE

The default value is TRUE.

See Also:

Constant Field Values

TRUE

public static final String TRUE

See Also:

Constant Field Values

FALSE

public static final String FALSE

See Also:

Constant Field Values

RANK

public static final String RANK

Apply the requested change only to a specific rank.

See Also:

Constant Field Values