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zenpacks.daviswr.osx.server.caching's Issues

macOS High Sierra compatibility

The Caching service in High Sierra is no longer controlled by serveradmin, requiring modeler and data sources to be updated.

Add peer server modeling

Model peer caching servers as components from serveradmin fullstatus caching output.

Example

caching:Peers:_array_index:0:address = "aaa.bbb.ccc.ddd"
caching:Peers:_array_index:0:port = 49094
caching:Peers:_array_index:0:details:capabilities:ur = yes
caching:Peers:_array_index:0:details:capabilities:sc = yes
caching:Peers:_array_index:0:details:capabilities:pc = no
caching:Peers:_array_index:0:details:capabilities:im = no
caching:Peers:_array_index:0:details:capabilities:ns = yes
caching:Peers:_array_index:0:details:capabilities:query-parameters = yes
caching:Peers:_array_index:0:details:cache-size = 900000000000
caching:Peers:_array_index:0:details:ac-power = yes
caching:Peers:_array_index:0:details:is-portable = no
caching:Peers:_array_index:0:details:local-network:_array_index:0:speed = 1000
caching:Peers:_array_index:0:details:local-network:_array_index:0:wired = yes
caching:Peers:_array_index:0:healthy = yes
caching:Peers:_array_index:0:version = "161"
caching:Peers:_array_index:0:friendly = yes
caching:Peers:_array_index:0:guid = "9B9CDED4-F70C-4910-B7D4-11D1530AD34D"

Example without peers

caching:Peers = _empty_array

Capability flags

  • pc - Personal Cache (iCloud)
  • im - Imports

Expanded error handling

/Library/Server/Caching/Logs/Debug.log:
2018-06-23 20:33:57.742 Request for registration from https://lcdn-registration.apple.com/lcdn/register failed: HTTP response 400, body "INVALID_DEVICE"

yields

caching:StartupStatus = "FAILED"
caching:RegistrationError = "INVALID_DEVICE"
caching:RegistrationStatus = -1
caching:CacheStatus = "OK"
caching:state = "STOPPED"

Server 5.2 on 10.11.6

Add process monitoring

Create OS Process classes for

  • servermgr_caching
  • /Applications/Server.app/Contents/ServerRoot/usr/libexec/AssetCache/AssetCache

Cache hit rate 

$ grep "Since server start" /Library/Server/Caching/Logs/Service.log | tail -1
2018-07-04 08:54:06.022 Since server start: 5.73 GB returned to clients, 5.45 GB stored from Internet, 0 bytes from peers; 0 bytes imported.

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