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Here are some global configuration parameters needs to be documented.

We should able to figure out following in the Detailed Description part.

-  What is the meaning/purpose of the parameter from an operational viewpoint?
-  What is the example use case of the parameter? What kind of side effect can we expect by adjusting the value?
-  What is the related component (such as virtual router, Dom0, guest VM) and correspondent configuration?

Global Configuration

Description

Default

unit

Detailed Description

consoleproxy.disable.rpfilter

disable rp_filter console proxy VM public interface

TRUE

N/A

Ÿ

consoleproxy.loadscan.interval

The time interval(in milliseconds) to scan console proxy working-load info

10000

Milli seconds

Ÿ

consoleproxy.session.max

The max number of viewer sessions console proxy is configured to serve for

50

N/A

direct.agent.load.size

The number of direct agents to load each time

16

N/A

 

guest.domain.suffix

Default domain name for vms inside virtualized networks fronted by router

cloud.internal

N/A

Ÿ

network.gc.interval

Seconds to wait before checking for networks to shutdown

600

Seconds

Ÿ

network.loadbalancer.basiczone.elb.gc.interval.minutes

Garbage collection interval to destroy unused ELB vms in minutes. Minimum of 5

30

Minutes

Ÿ

pool.storage.allocated.capacity.disablethreshold

Percentage (as a value between 0 and 1) of allocated storage utilization above which allocators will disable using the pool for low allocated storage available

0.85

%

Ÿ This defines the threshold for virtual storage allocated by CloudStack.
Ÿ Upon any request for storage allocation, CS calculates the usage including the requested value and compares with threshold. If it crosses the threshold value then that storage will not be used for allocation.

pool.storage.capacity.disablethreshold

Percentage (as a value between 0 and 1) of storage utilization above which allocators will disable using the pool for low storage available

0.85

%

Ÿ This defines the threshold for physical storage allocated by CloudStack.
Ÿ In case of thin provisioning of storage, physical storage defines the actual usage not allocated. In case of thick provisioning both allocated storage and physical storage are same.
Ÿ Upon any request for storage allocation, CS calculates the actual usage on storage including the requested value and compares with the threshold value. If it crosses the threshold value then that storage will not be used for allocation.

secstorage.allowed.internal.sites

Comma separated list of cidrs internal to the datacenter that can host template download servers, please note 0.0.0.0 is not a valid site

null

N/A

Ÿ Add internal subnets from which template registration should be allowed.

sync.interval

Cluster Delta sync interval in seconds

60

seconds

Ÿ

vm.op.cancel.interval

Time (in seconds) to wait before cancelling a operation

3600

seconds

Ÿ

vm.op.cleanup.interval

Interval to run the thread that cleans up the vm operations (in seconds)

86400

seconds

Ÿ

vm.op.cleanup.wait

Time (in seconds) to wait before cleanuping up any vm work items

3600

seconds

Ÿ

vm.op.wait.interval

Time (in seconds) to wait before checking if a previous operation has succeeded

120

seconds

Ÿ

router.check.poolsize

Numbers of threads using to check redundant router status.

10

N/A

Ÿ

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