Examples:
Example: DescribeEngineDefaultParameters
resp = client.describe_engine_default_parameters({
cache_parameter_group_family: "redis2.8",
max_records: 25,
})
{
engine_defaults: {
cache_node_type_specific_parameters: [
{
allowed_values: "0-",
cache_node_type_specific_values: [
{
cache_node_type: "cache.c1.xlarge",
value: "650117120",
},
{
cache_node_type: "cache.m1.large",
value: "702545920",
},
{
cache_node_type: "cache.m1.medium",
value: "309329920",
},
{
cache_node_type: "cache.m1.small",
value: "94371840",
},
{
cache_node_type: "cache.m1.xlarge",
value: "1488977920",
},
{
cache_node_type: "cache.m2.2xlarge",
value: "3502243840",
},
{
cache_node_type: "cache.m2.4xlarge",
value: "7088373760",
},
{
cache_node_type: "cache.m2.xlarge",
value: "1709178880",
},
{
cache_node_type: "cache.m3.2xlarge",
value: "2998927360",
},
{
cache_node_type: "cache.m3.large",
value: "650117120",
},
{
cache_node_type: "cache.m3.medium",
value: "309329920",
},
{
cache_node_type: "cache.m3.xlarge",
value: "1426063360",
},
{
cache_node_type: "cache.m4.10xlarge",
value: "16604761424",
},
{
cache_node_type: "cache.m4.2xlarge",
value: "3188912636",
},
{
cache_node_type: "cache.m4.4xlarge",
value: "6525729063",
},
{
cache_node_type: "cache.m4.large",
value: "689259315",
},
{
cache_node_type: "cache.m4.xlarge",
value: "1532850176",
},
{
cache_node_type: "cache.r3.2xlarge",
value: "6081740800",
},
{
cache_node_type: "cache.r3.4xlarge",
value: "12268339200",
},
{
cache_node_type: "cache.r3.8xlarge",
value: "24536678400",
},
{
cache_node_type: "cache.r3.large",
value: "1468006400",
},
{
cache_node_type: "cache.r3.xlarge",
value: "3040870400",
},
{
cache_node_type: "cache.t1.micro",
value: "14260633",
},
{
cache_node_type: "cache.t2.medium",
value: "346134937",
},
{
cache_node_type: "cache.t2.micro",
value: "58195968",
},
{
cache_node_type: "cache.t2.small",
value: "166513868",
},
],
change_type: "immediate",
data_type: "integer",
description: "Slave client output buffer hard limit in bytes.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-slave-hard-limit",
source: "system",
},
{
allowed_values: "0-",
cache_node_type_specific_values: [
{
cache_node_type: "cache.c1.xlarge",
value: "650117120",
},
{
cache_node_type: "cache.m1.large",
value: "702545920",
},
{
cache_node_type: "cache.m1.medium",
value: "309329920",
},
{
cache_node_type: "cache.m1.small",
value: "94371840",
},
{
cache_node_type: "cache.m1.xlarge",
value: "1488977920",
},
{
cache_node_type: "cache.m2.2xlarge",
value: "3502243840",
},
{
cache_node_type: "cache.m2.4xlarge",
value: "7088373760",
},
{
cache_node_type: "cache.m2.xlarge",
value: "1709178880",
},
{
cache_node_type: "cache.m3.2xlarge",
value: "2998927360",
},
{
cache_node_type: "cache.m3.large",
value: "650117120",
},
{
cache_node_type: "cache.m3.medium",
value: "309329920",
},
{
cache_node_type: "cache.m3.xlarge",
value: "1426063360",
},
{
cache_node_type: "cache.m4.10xlarge",
value: "16604761424",
},
{
cache_node_type: "cache.m4.2xlarge",
value: "3188912636",
},
{
cache_node_type: "cache.m4.4xlarge",
value: "6525729063",
},
{
cache_node_type: "cache.m4.large",
value: "689259315",
},
{
cache_node_type: "cache.m4.xlarge",
value: "1532850176",
},
{
cache_node_type: "cache.r3.2xlarge",
value: "6081740800",
},
{
cache_node_type: "cache.r3.4xlarge",
value: "12268339200",
},
{
cache_node_type: "cache.r3.8xlarge",
value: "24536678400",
},
{
cache_node_type: "cache.r3.large",
value: "1468006400",
},
{
cache_node_type: "cache.r3.xlarge",
value: "3040870400",
},
{
cache_node_type: "cache.t1.micro",
value: "14260633",
},
{
cache_node_type: "cache.t2.medium",
value: "346134937",
},
{
cache_node_type: "cache.t2.micro",
value: "58195968",
},
{
cache_node_type: "cache.t2.small",
value: "166513868",
},
],
change_type: "immediate",
data_type: "integer",
description: "Slave client output buffer soft limit in bytes.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-slave-soft-limit",
source: "system",
},
{
allowed_values: "0-",
cache_node_type_specific_values: [
{
cache_node_type: "cache.c1.xlarge",
value: "6501171200",
},
{
cache_node_type: "cache.m1.large",
value: "7025459200",
},
{
cache_node_type: "cache.m1.medium",
value: "3093299200",
},
{
cache_node_type: "cache.m1.small",
value: "943718400",
},
{
cache_node_type: "cache.m1.xlarge",
value: "14889779200",
},
{
cache_node_type: "cache.m2.2xlarge",
value: "35022438400",
},
{
cache_node_type: "cache.m2.4xlarge",
value: "70883737600",
},
{
cache_node_type: "cache.m2.xlarge",
value: "17091788800",
},
{
cache_node_type: "cache.m3.2xlarge",
value: "29989273600",
},
{
cache_node_type: "cache.m3.large",
value: "6501171200",
},
{
cache_node_type: "cache.m3.medium",
value: "2988441600",
},
{
cache_node_type: "cache.m3.xlarge",
value: "14260633600",
},
{
cache_node_type: "cache.m4.10xlarge",
value: "166047614239",
},
{
cache_node_type: "cache.m4.2xlarge",
value: "31889126359",
},
{
cache_node_type: "cache.m4.4xlarge",
value: "65257290629",
},
{
cache_node_type: "cache.m4.large",
value: "6892593152",
},
{
cache_node_type: "cache.m4.xlarge",
value: "15328501760",
},
{
cache_node_type: "cache.r3.2xlarge",
value: "62495129600",
},
{
cache_node_type: "cache.r3.4xlarge",
value: "126458265600",
},
{
cache_node_type: "cache.r3.8xlarge",
value: "254384537600",
},
{
cache_node_type: "cache.r3.large",
value: "14470348800",
},
{
cache_node_type: "cache.r3.xlarge",
value: "30513561600",
},
{
cache_node_type: "cache.t1.micro",
value: "142606336",
},
{
cache_node_type: "cache.t2.medium",
value: "3461349376",
},
{
cache_node_type: "cache.t2.micro",
value: "581959680",
},
{
cache_node_type: "cache.t2.small",
value: "1665138688",
},
],
change_type: "immediate",
data_type: "integer",
description: "The maximum configurable amount of memory to use to store items, in bytes.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "maxmemory",
source: "system",
},
],
cache_parameter_group_family: "redis2.8",
marker: "bWluLXNsYXZlcy10by13cml0ZQ==",
parameters: [
{
allowed_values: "yes,no",
change_type: "requires-reboot",
data_type: "string",
description: "Apply rehashing or not.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "activerehashing",
parameter_value: "yes",
source: "system",
},
{
allowed_values: "always,everysec,no",
change_type: "immediate",
data_type: "string",
description: "fsync policy for AOF persistence",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "appendfsync",
parameter_value: "everysec",
source: "system",
},
{
allowed_values: "yes,no",
change_type: "immediate",
data_type: "string",
description: "Enable Redis persistence.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "appendonly",
parameter_value: "no",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Normal client output buffer hard limit in bytes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-normal-hard-limit",
parameter_value: "0",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Normal client output buffer soft limit in bytes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-normal-soft-limit",
parameter_value: "0",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Normal client output buffer soft limit in seconds.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-normal-soft-seconds",
parameter_value: "0",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Pubsub client output buffer hard limit in bytes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-pubsub-hard-limit",
parameter_value: "33554432",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Pubsub client output buffer soft limit in bytes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-pubsub-soft-limit",
parameter_value: "8388608",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Pubsub client output buffer soft limit in seconds.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-pubsub-soft-seconds",
parameter_value: "60",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Slave client output buffer soft limit in seconds.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "client-output-buffer-limit-slave-soft-seconds",
parameter_value: "60",
source: "system",
},
{
allowed_values: "yes,no",
change_type: "immediate",
data_type: "string",
description: "If enabled, clients who attempt to write to a read-only slave will be disconnected. Applicable to 2.8.23 and higher.",
is_modifiable: true,
minimum_engine_version: "2.8.23",
parameter_name: "close-on-slave-write",
parameter_value: "yes",
source: "system",
},
{
allowed_values: "1-1200000",
change_type: "requires-reboot",
data_type: "integer",
description: "Set the number of databases.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "databases",
parameter_value: "16",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "The maximum number of hash entries in order for the dataset to be compressed.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "hash-max-ziplist-entries",
parameter_value: "512",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "The threshold of biggest hash entries in order for the dataset to be compressed.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "hash-max-ziplist-value",
parameter_value: "64",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "The maximum number of list entries in order for the dataset to be compressed.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "list-max-ziplist-entries",
parameter_value: "512",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "The threshold of biggest list entries in order for the dataset to be compressed.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "list-max-ziplist-value",
parameter_value: "64",
source: "system",
},
{
allowed_values: "5000",
change_type: "immediate",
data_type: "integer",
description: "Max execution time of a Lua script in milliseconds. 0 for unlimited execution without warnings.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "lua-time-limit",
parameter_value: "5000",
source: "system",
},
{
allowed_values: "1-65000",
change_type: "requires-reboot",
data_type: "integer",
description: "The maximum number of Redis clients.",
is_modifiable: false,
minimum_engine_version: "2.8.6",
parameter_name: "maxclients",
parameter_value: "65000",
source: "system",
},
{
allowed_values: "volatile-lru,allkeys-lru,volatile-random,allkeys-random,volatile-ttl,noeviction",
change_type: "immediate",
data_type: "string",
description: "Max memory policy.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "maxmemory-policy",
parameter_value: "volatile-lru",
source: "system",
},
{
allowed_values: "1-",
change_type: "immediate",
data_type: "integer",
description: "Max memory samples.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "maxmemory-samples",
parameter_value: "3",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Maximum number of seconds within which the master must receive a ping from a slave to take writes. Use this parameter together with min-slaves-to-write to regulate when the master stops accepting writes. Setting this value to 0 means the master always takes writes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "min-slaves-max-lag",
parameter_value: "10",
source: "system",
},
{
allowed_values: "0-",
change_type: "immediate",
data_type: "integer",
description: "Number of slaves that must be connected in order for master to take writes. Use this parameter together with min-slaves-max-lag to regulate when the master stops accepting writes. Setting this to 0 means the master always takes writes.",
is_modifiable: true,
minimum_engine_version: "2.8.6",
parameter_name: "min-slaves-to-write",
parameter_value: "0",
source: "system",
},
],
},
}Request syntax with placeholder values
resp = client.describe_engine_default_parameters({
cache_parameter_group_family: "String", max_records: 1,
marker: "String",
})Response structure
resp.engine_defaults.cache_parameter_group_family resp.engine_defaults.marker resp.engine_defaults.parameters resp.engine_defaults.parameters[0].parameter_name resp.engine_defaults.parameters[0].parameter_value resp.engine_defaults.parameters[0].description resp.engine_defaults.parameters[0].source resp.engine_defaults.parameters[0].data_type resp.engine_defaults.parameters[0].allowed_values resp.engine_defaults.parameters[0].is_modifiable resp.engine_defaults.parameters[0].minimum_engine_version resp.engine_defaults.parameters[0].change_type resp.engine_defaults.cache_node_type_specific_parameters resp.engine_defaults.cache_node_type_specific_parameters[0].parameter_name resp.engine_defaults.cache_node_type_specific_parameters[0].description resp.engine_defaults.cache_node_type_specific_parameters[0].source resp.engine_defaults.cache_node_type_specific_parameters[0].data_type resp.engine_defaults.cache_node_type_specific_parameters[0].allowed_values resp.engine_defaults.cache_node_type_specific_parameters[0].is_modifiable resp.engine_defaults.cache_node_type_specific_parameters[0].minimum_engine_version resp.engine_defaults.cache_node_type_specific_parameters[0].cache_node_type_specific_values resp.engine_defaults.cache_node_type_specific_parameters[0].cache_node_type_specific_values[0].cache_node_type resp.engine_defaults.cache_node_type_specific_parameters[0].cache_node_type_specific_values[0].value resp.engine_defaults.cache_node_type_specific_parameters[0].change_type RetroSearch is an open source project built by @garambo | Open a GitHub Issue
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