Parameter template
Parameters are defined using a YAML manifest with the following structure:
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parameters:
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- name: jvm_heap_size
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description: the size of the heap of the jvm
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unit: megabytes
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restart: false
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- name: jvm_survival_ratio
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description: the ratio of the two survivor spaces in the jvm gc
with the following properties:
Field | Type | Value restrictions | Is required | Default Value | Description |
|---|---|---|---|---|---|
name | string | It should contain only lower/uppercase letters, numbers or underscores. It should start only with a letter. No spaces are allowed. | TRUE | The name of the parameter | |
description | string | TRUE | A description characterizing the parameter | ||
unit | string | FALSE | empty unit | The unit of measure of the parameter | |
restart | boolean | | FALSE | FALSE | If the use of the parameters for changing the configuration of a system should cause the system to be restarted. |
Notice that parameter definitions are shared across all the workspaces on the same Akamas installation, and require an account with administrative privileges to manage them.
The following represents a set of parameters for a JVM component
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parameters:
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- name: jvm_maxHeapSize
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description: Maximum heap size
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unit: megabytes
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restart: true
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- name: jvm_newRatio
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description: Ratio of old/new generation sizes
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restart: true
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- name: jvm_maxTenuringThreshold
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description: Maximum value for tenuring threshold
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restart: true
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- name: jvm_survivorRatio
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description: Ratio of eden/survivor space size
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restart: true
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- name: jvm_concurrentGCThreads
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description: Number of threads concurrent garbage collection will use
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unit: threads
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restart: true
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- name: jvm_gcType
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description: Type of the garbage collection algorithm
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restart: true
The following represents a set of CPU-related parameters for the Linux operating system
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parameters:
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# CPU Related
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- name: os_cpu_sched_min_granularity_ns
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description: Target minimum scheduler period in which a single task will run
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unit: nanoseconds
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restart: false
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- name: os_cpu_sched_wakeup_granularity_ns
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unit: nanoseconds
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description: desc
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restart: false
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- name: os_cpu_sched_migration_cost_ns
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unit: nanoseconds
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description: desc
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restart: false
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- name: os_cpu_sched_child_runs_first
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description: desc
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restart: false
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- name: os_cpu_sched_latency_ns
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unit: nanoseconds
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description: desc
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restart: false
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- name: os_cpu_sched_autogroup_enabled
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description: desc
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restart: false
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- name: os_cpu_sched_nr_migrate
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description: desc
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restart: false
Last modified 2mo ago