A set of parameters for GPUdb::alterTier.
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#include <gpudb/protocol/alter_tier.h>
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| std::string | name |
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| std::map< std::string, std::string > | options |
| | Optional parameters. More...
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A set of parameters for GPUdb::alterTier.
Alters properties of an exisiting tier to facilitate resource management.
To disable watermark-based eviction, set both high_watermark and low_watermark to 100.
Definition at line 25 of file alter_tier.h.
◆ AlterTierRequest() [1/2]
| gpudb::AlterTierRequest::AlterTierRequest |
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◆ AlterTierRequest() [2/2]
| gpudb::AlterTierRequest::AlterTierRequest |
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const std::string & |
name_, |
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const std::map< std::string, std::string > & |
options_ |
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Constructs an AlterTierRequest object with the specified parameters.
- Parameters
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| [in] | name_ | Name of the tier to be altered. Must be an existing tier group name. |
| [in] | options_ | Optional parameters.
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alter_tier_capacity: Maximum size in bytes this tier may hold at once.
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alter_tier_high_watermark: Threshold of usage of this tier's resource that once exceeded, will trigger watermark-based eviction from this tier. The minimum allowed value is '0'. The maximum allowed value is '100'.
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alter_tier_low_watermark: Threshold of resource usage that once fallen below after crossing the high_watermark, will cease watermark-based eviction from this tier. The minimum allowed value is '0'. The maximum allowed value is '100'.
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alter_tier_wait_timeout: Timeout in seconds for reading from or writing to this resource. Applies to cold storage tiers only.
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alter_tier_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:
The default value is alter_tier_true.
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alter_tier_rank: Apply the requested change only to a specific rank. The minimum allowed value is '0'. The maximum allowed value is '10000'.
The default value is an empty map. |
Definition at line 93 of file alter_tier.h.
◆ name
| std::string gpudb::AlterTierRequest::name |
Name of the tier to be altered.
Must be an existing tier group name.
Definition at line 102 of file alter_tier.h.
◆ options
| std::map<std::string, std::string> gpudb::AlterTierRequest::options |
Optional parameters.
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alter_tier_capacity: Maximum size in bytes this tier may hold at once.
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alter_tier_high_watermark: Threshold of usage of this tier's resource that once exceeded, will trigger watermark-based eviction from this tier. The minimum allowed value is '0'. The maximum allowed value is '100'.
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alter_tier_low_watermark: Threshold of resource usage that once fallen below after crossing the high_watermark, will cease watermark-based eviction from this tier. The minimum allowed value is '0'. The maximum allowed value is '100'.
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alter_tier_wait_timeout: Timeout in seconds for reading from or writing to this resource. Applies to cold storage tiers only.
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alter_tier_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:
The default value is alter_tier_true.
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alter_tier_rank: Apply the requested change only to a specific rank. The minimum allowed value is '0'. The maximum allowed value is '10000'.
The default value is an empty map.
Definition at line 142 of file alter_tier.h.
The documentation for this struct was generated from the following file:
1.8.15