Content Caching

com.apple.AssetCache.managed

The payload that configures the Content Caching service.

macOS

macOS 10.13.4+exclusive

Configuration Keys (56)

Key	Type	Title	Description	Default	Range
`AutoActivation`	boolean	Automatically activate content caching	If 'true', the system automatically activates the content cache when possible and prevents disabling it. If 'allowContentCaching' is 'false', 'AutoActivation' is also 'false'. Removing a profile that set 'AutoActivation' to 'true' doesn't deactivate the Content Cache.	false	—
`CacheLimit`	integer	Maximum Cache Size	The maximum number of bytes of disk space to use for the content cache. Set to '0' for unlimited disk space.	0	—
`AllowPersonalCaching`	boolean	Allow Personal iCloud Data Caching	If 'true', the system caches the user's iCloud data. Changes to this value don't have an immediate effect. Clients may take some time, such as hours or days, to react to changes. Note: At least one of the 'AllowPersonalCaching' or 'AllowSharedCaching' keys need to be 'true'. Depends on: PersonalCacheLimit	true	—
`PersonalCacheLimit`	integer	Max Personal Cache Size	—	—	—
`AllowSharedCaching`	boolean	Allow non-iCloud Data Caching	If 'true', the system caches non-iCloud content, such as apps and software updates. Changes to this value don't have an immediate effect. Clients may take some time, such as hours or days, to react to changes. Note: At least one of the 'AllowPersonalCaching' or 'AllowSharedCaching' keys need to be 'true'.	true	—
`AutoEnableTetheredCaching`	boolean	Automatically activate Internet connection sharing	If 'true', the system automatically enables Internet connection sharing when possible and prevent disabling Internet connection sharing. 'DenyTetheredCaching' overrides 'AutoEnableTetheredCaching'. Tethered caching requires Content Caching. Available in macOS 10.15.4 and later.	false	—
`Port`	integer	Port	The TCP port number on which the content cache accepts requests for uploads or downloads. Set to '0' to pick a random, available port.	0
`DataPath`	string	Data Path	The path to the directory used to store cached content. Changing this setting manually doesn't automatically move cached content from the old location to the new one. To move content automatically, use the Sharing preference's Content Caching pane. The value must be (or end with) '/Library/Application Support/Apple/AssetCache/Data'. The system creates a directory and its intermediates for the given data path if it doesn't already exist. The directory is owned by '_assetcache:_assetcache' and has mode 0750. Its immediate parent directory ('.../Library/Application Support/Apple/AssetCache') is owned by '_assetcache:_assetcache' and has mode '0755'.	"/Library/Application Support/Apple/AssetCache/Data"	—
`DenyTetheredCaching`	boolean	Disable Caching Over Shared Internet Connection	If 'true', the system disables tethered caching.	false	—
`LogClientIdentity`	boolean	Log Client Details	If 'true', the Content Cache logs the IP address and port number of the clients that request content.	false	—
`Parents`	array	Parents IP Addresses	An array of the local IP addresses of other content caches that this cache should download from or upload to, instead of downloading from or uploading to Apple directly. The system ignores invalid addresses and addresses of computers that aren't content caches. The system skips Parent caches that become unavailable. If all parent content caches become unavailable, the content cache downloads from or uploads to Apple directly, until a parent content cache becomes available again.	—	—
`ParentsItem`required	string	IP Address	An IP address.	—	—
`ParentSelectionPolicy`	string	Parent Selection Policy	The policy to implement when choosing among more than one configured parent content cache. With every policy, the system skips parent caches that are temporarily unavailable. Allowed values: - 'first-available': Always use the first available parent in the Parents list. Use this policy to designate permanent primary, secondary, and subsequent parents. - 'url-path-hash': Hash the path part of the requested URL so that the same parent is always used for the same URL. This is useful for maximizing the size of the combined caches of the parents. - 'random': Choose a parent at random. Use this policy for load balancing. - 'round-robin': Rotate through the parents in order. Use this policy for load balancing. - 'sticky-available': Use the first available parent in the Parents list until it becomes unavailable, then advance to the next one. Use this policy for designating floating primary, secondary, and subsequent parents.	"round-robin"
`PublicRanges`	array	Public Ranges	An array of dictionaries describing a range of public IP addresses that the cloud servers should use for matching clients to content caches.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`AllowCacheDelete`	boolean	Allow Cache Delete	If true, the system purges content from the cache automatically when it needs disk space for other apps when free disk space runs low on the computer. Set to 'false' to maximize effectiveness of Content Caching. Available in macOS 10.15 and later. Depends on: AgeForLowSpaceAlert	true	—
`DisplayAlerts`	boolean	Display Content Caching Alerts	If 'true', Content Caching displays exceptional conditions (alerts) as system notifications in the upper corner of the screen. Alerts were automatically displayed starting in macOS 10.13. In macOS 10.15 the alerts are off by default, but still available through this setting. Available in macOS 10.15 and later.	false	—
`KeepAwake`	boolean	Keep Awake for Content Caching	If 'true', the system prevents the computer from sleeping as long as Content Caching is on (System Preferences > Sharing > Content Caching is on). Customers who want Content Caching to be as available as much as possible should turn this setting on. Available in macOS 10.15 and later.	false	—
`AgeForLowSpaceAlert`	integer	Low Space Alert	—	30	—
`AllowImports`	boolean	Allow Imports	— Depends on: ImportMaxRate; ImportMinRate; ImportRateAttenuation; ImportTimeout	true	—
`AllowWirelessPortable`	boolean	Allow Laptop Wireless Caching	—	true	—
`DatabaseUpdateInterval`	integer	Cache Database Update Interval	—	5
`DownloadMinRate`	integer	Minimum Download Rate	—	8000
`DownloadTimeout`	integer	Download Timeout	—	180
`ImportMaxRate`	integer	Max Import Rate	—	0	—
`ImportMinRate`	integer	Min Import Rate	—	2000	—
`ImportRateAttenuation`	real	Import Rate Attenuation	—	0.2
`ImportTimeout`	integer	Import Timeout	—	300
`Interface`	string	—	—	"Listen on all interfaces"
`ListenWithPeersAndParents`	boolean	Listen with Peers and Parents	If 'true', the content cache provides content to the clients in the union of the 'ListenRanges', 'PeerListenRanges' and 'Parents'.	true	—
`MaxParentDepth`	integer	Max Parent Depth	—	8	—
`MaxPeersToQuery`	integer	Max Peers to Query	—	0	—
`MetricsInterval`	integer	Metrics Interval	—	60
`MetricsMaxAge`	integer	Max Metrics Age	—	30
`OriginDownloadTimeout`	integer	Origin Download Timeout	—	60
`OriginUploadTimeout`	integer	Origin Upload Timeout	—	600
`ParentDownloadTimeout`	integer	Parent Download Timeout	—	60
`ParentUploadTimeout`	integer	Parent Upload Timeout	—	600
`ParentRetryInterval`	integer	Parent Retry Interval	—	900
`PruneAffinitiesAge`	integer	Prune Affinities Cache Age	—	30
`PruneAffinitiesInterval`	integer	Prune Affinities Cache Interval	—	7
`PruneAssetsAge`	integer	Prune Assets Age	—	120
`PruneAssetsInterval`	integer	Prune Assets Interval	—	7
`ReservedVolumeSpace`	integer	Reserved Volume Size	—	2000000000	—
`TerminationTimeout`	integer	Termination Timeout	—	10
`Verbose`	boolean	—	—	false	—
`PFC_SegmentedControl_0`required	string	—	—	—	—
`LocalSubnetsOnly`	boolean	Restrict Clients To Local Network	If 'true', the content cache offers content to clients only on the same immediate local network only. No content is offered to clients on other networks reachable by the content cache. If 'LocalSubnetsOnly' is 'true', the system ignores 'ListenRanges'.	true	—
`ListenRangesOnly`	boolean	Restrict To Client Listen Ranges	If 'true', the content cache provides content to the clients in the 'ListenRanges'.	false	—
`ListenRanges`	array	Client Listen Ranges	An array of dictionaries that describe a range of client IP addresses to serve.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`MaxConcurrentClients`	integer	Max Concurrent Clients	—	3400	—
`PeerLocalSubnetsOnly`	boolean	Restrict Peers To Local Network	If 'true', the content cache only peers with other content caches on the same immediate local network, rather than with content caches that use the same public IP address as the device. When 'PeerLocalSubnetsOnly' is 'true', it overrides the configuration of 'PeerFilterRanges' and 'PeerListenRanges'. If the network changes, the local network peering restrictions update appropriately. If 'false', the content cache defers to 'PeerFilterRanges' and 'PeerListenRanges' for configuring the peering restrictions.	true	—
`PeerFilterRanges`	array	Peer Filter Ranges	An array of dictionaries describing a range of peer IP addresses that the content cache uses to filter its list of peers to query for content. The content cache only queries peers in 'PeerFilterRanges'. When 'PeerFilterRanges' is an empty array, the content cache doesn't query any peers.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`PeerListenRanges`	array	Peer Listen Ranges	An array of dictionaries describing a range of peer IP addresses the content cache responds to. When 'PeerListenRanges' is an empty array, the content cache responds with an error to all cache queries.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`PeerDownloadTimeout`	integer	Peer Download Timeout	—	30
`PeerNotifyTimeout`	integer	Peer Notify Timeout	—	30
`PeerQueryTimeout`	integer	Peer Query Timeout	—	5
`PeerRetryInterval`	integer	Peer Retry Interval	—	900
`ParentsItem`required	string	IP Address	An IP address.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`RangesItem`	dict	RangeDict	A range of IP addresses to cache.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—
`type`	string	IP Address Type	The IP address type.	"IPv4"
`first`required	string	Start IP Address	The first IP address in the range.	—	—
`last`required	string	End IP Address	The last IP address in the range.	—	—