Photon 서버 환경 설정

Instance

Multiple instances are supported. Each instance has its own node in the config file.

Setting	Photon Default	Config Default	Description
ConfigName	–	–	Optional "ConfigName" value from config file; if present it will be logged.
ReportOnJob	–	FALSE	Causes Photon to determine if it is running inside a Win32 job object and if so reports on the limits currently imposed.
LogFileLocation	–		Sets the path for logfiles. Default is the location where the server is started. Can be absolute or relative to PhotonSocketServer.exe.
EnablePerformanceCounters	–	TRUE	Determines whether the server will enable its performance counters. The implementation creates a shared memory segment requiring suitable privileges. Set to "false" to run without those privileges.
MaxMessageSize	–	512000	Maximum number of bytes for a UDP, TCP or WebSockets message. If exceeded, the client will be disconnected. Can be overwritten in the appropriate listener.
ShutdownTimeout	–	30000	When a Photon shutdown has not finished after this timeout (in ms), the process is forcibly killed.
DisplayName	–	–	An optional display name for this instance, shown in Photon Control.

TCP

Setting	Photon Default	Config Default	Description
TCPBufferSize	–	4096	The size of buffer used during TCP data transfer. Does not restrict message size. Ideal to have slightly more than the average message size.
TCPBufferAllocatorPoolSize	–	500	The number of buffers used for TCP data transfer kept in the pool for later reuse. Trade-off of speed vs resources.
StreamSocketAllocatorPoolSize	–	250	The number of TCP sockets kept in the pool for later reuse. Trade-off of speed vs resources.

UDP/ENet

Setting	Photon Default	Config Default	Description
DatagramSocketAllocatorPoolSize	–	1000	The number of datagram sockets kept in the pool for later reuse. Trade-off of speed vs resources.
PingIntervalMilliseconds	–	1000	How often a ping is sent from server to client when no data is flowing. A larger value leads to less server load. Defaults to the ENet standard value of 500ms.
DataSendingDelayMilliseconds	5	5	How long the server waits to accumulate more data before sending. Larger values = fewer datagrams but higher latency.
AckSendingDelayMilliseconds	5	5	How long the server waits before sending an ACK, allowing it to piggyback onto a data packet. Doesn't increase latency.
ENETBufferAllocatorPoolSize	–	5000	The number of buffers kept in the pool for later reuse. Trade-off of speed vs resources.
ValidateCRCifPresent	–	FALSE	If enabled, incoming datagrams with an optional CRC value will have their checksum validated. Outbound datagrams to peers created with CRC will also include the CRC value.
MinimumTimeout	5000	5000	Minimum time before an ENet peer's lack of response causes a timeout disconnect. Actual time is determined dynamically per peer based on RTT history.
MaximumTimeout	30000	30000	Maximum time before an ENet peer's lack of response causes a timeout disconnect. Actual time is determined dynamically per peer based on RTT history.
MinimumRetransmitTimeout	200	–	Sets a minimum retransmission time. Low-latency peers may be delayed. Reduces retransmission speed and server load.
MaximumRetransmitTimeout	0	–	Defines the maximum retransmission time. 0 = feature is turned off.
RTTACKAdjustmentTimeout	0	–	When set, the last retransmit-timeout is used (fast resend) instead of last retransmit-timeout×2 if the peer received any data during the period. 0 = feature is turned off.

UDP/ENet Throttling

Setting	Photon Default	Config Default	Description
PerPeerMaxReliableDataInTransit	51200	16384	Maximum amount of reliable data (in bytes) a peer can have in-flight without ACK. Once reached, future reliable data is queued.
PerPeerTransmitRateLimitKBSec	256	256	Maximum data (reliable + unreliable) that can be sent per second (in KB). When reached, reliable data is queued and unreliable data is dropped.
PerPeerTransmitRatePeriodMilliseconds	–	200	How often the transmit rate limit is checked. Smaller = smoother flow; larger = less server resources used.
MaxQueuedDataPerPeer	512000	163840	Maximum amount of reliable data a peer can queue. Once exceeded, future reliable sends return an error code.

Debugging

Setting	Photon Default	Config Default	Description
ProduceDumps	–	TRUE	Enable or disable creation of dump files in case of a crash. Dump files are essential to find issues in the Photon Core.
DumpType	–	Full	Type of crash dumps: "Full", "Maxi", or "Mini". Less information from first to last but also less disk space.
MaxDumpsToProduce	–	10	Maximum number of dump files written. If files are moved or deleted, new ones can be written.

IOPool

Handles all I/O operations such as datagram sending/reception, TCP read completions, etc. Can also handle ENet protocol operations if ENetThreadPool\OnlyDispatchTimers is "true".

Setting	Photon Default	Config Default	Description
NumThreads	–	2	Number of threads for socket I/O. 4–8 tends to be good. If set to 0, uses 2× the number of CPU cores.

ThreadPool

The "Business Logic" thread pool used for all CLR operations.

Setting	Photon Default	Config Default	Description
InitialThreads	–	4	Number of threads the thread pool starts with.
MinThreads	–	4	Minimum number of threads in the pool.
MaxThreads	–	4	Maximum number of threads. If Initial, Min, and Max are the same, the pool is static (more efficient). Dynamic pools grow and shrink as demand changes.
MaxDormantThreads	–	4	Maximum number of dormant (idle) threads. Excess threads will be shut down.
PoolMaintPeriod	–	5000	How often (in ms) the pool is maintained to check on and shut down dormant threads.
DispatchTimeout	–	100	If a work item is dispatched and this many milliseconds pass before a worker picks it up, a new thread may be started.

ENetThreadPool

Used for all ENet protocol operations: deblocking inbound datagrams, ACK handling, retransmission, and ping generation.

Setting	Photon Default	Config Default	Description
InitialThreads	–	2	See ThreadPool.
MinThreads	–	2	See ThreadPool.
MaxThreads	–	2	See ThreadPool.
MaxDormantThreads	–	5	See ThreadPool.
PoolMaintPeriod	–	5000	See ThreadPool.
DispatchTimeout	–	100	See ThreadPool.
OnlyDispatchTimers	–	FALSE	If true, only ENet timer operations use this pool. If false, all ENet protocol operations are dispatched to this pool.

Runtime

Defines the Photon Runtime behavior.

Setting	Photon Default	Config Default	Description
Assembly	PhotonHostRuntime, Culture=neutral	–	The Photon Runtime assembly to use. MUST be signed by the Exit Games Photon Runtime key. PublicKeyToken must NOT be specified.
CLRVersion	–	–	By default, the latest .NET runtime is used. Per instance, allows loading a specific version (e.g. "v4.0" or "v2.0").
EnableMDA	–	FALSE	Enables managed debugging assistants. Configure with a PhotonSocketServer.exe.mda.config file.
Type	PhotonHostRuntime.PhotonDomainManager		The type used as the domain manager. MUST derive from IPhotonDomainManager.
UnhandledExceptionPolicy	Ignore	Ignore	Options: Ignore, ReloadAppDomain, TerminateProcess.

Applications

Setting	Photon Default	Config Default	Description
Default	–	–	A default application to use if no application is specified.
PassUnknownAppsToDefaultApp	–	TRUE	If true, unknown application names use the default app. If false, it's a fatal error terminating the connection.

Application

Setting	Photon Default	Config Default	Description
Name	–	–	Arbitrary name for the application, used for dispatch.
SharedDirectory	–	"Shared"	Contains shared assemblies. Located under the Base Directory.
BaseDirectory	–	–	Should contain a "bin" folder with all assemblies, config files, etc.
Assembly	–	–	Details of the assembly to use. Can contain a complete assembly specification string including PublicKeyToken.
Type	–	–	The type loaded as the application. MUST derive from IPhotonApplication.
EnableShadowCopy	–	FALSE	If enabled, the CLR creates copies of assembly files in a private directory, allowing originals to be overwritten for updates.
EnableAutoRestart	–	FALSE	If enabled, the app restarts automatically on file changes. Existing connections continue until all disconnect, then the old app domain is unloaded.
ForceAutoRestart	TRUE	FALSE	Implies EnableAutoRestart but aborts all existing connections rather than waiting for them to disconnect.
RestartDelayMilliseconds	–	1000	File-change restarts can be delayed with this setting.
WatchFiles	–	""	No entry means watch everything. Example: `WatchFiles="dll;config;Lite.XML"`
ExcludeFiles	–	""	No entry means exclude nothing. Example: `ExcludeFiles="log4net.config"`
StartTimeoutMilliseconds	–	0	Photon shuts down if the app doesn't start in time. 0 = no timeout.
StopTimeoutMilliseconds	–	0	Photon shuts down if the app doesn't stop in time. 0 = no timeout.

TCPListener

Setting	Photon Default	Config Default	Description
IPAddress	0.0.0.0	–	The IP address to listen on. 0.0.0.0 = all interfaces.
IPAddressIPv6	::	–	The IPv6 address to listen on. :: = all interfaces.
Port	4530	4530	The port to listen on.
ListenBacklog	–	150	Size of the listen backlog queue. Affects simultaneous connection establishment, not active concurrent connections.
RecvBufferSize	–	0	TCP recv buffer size (also determines TCP window size). 0 = use OS default.
SendBufferSize	–	0	TCP send buffer size. 0 = use OS default.
MaxPendingWrites	–	50	Flow control: max pending write buffers.
MaxQueuedBuffers	–	200	Flow control: max queued write buffers. More than pending writes reduces non-paged pool usage.
DisableNagle	TRUE	TRUE	If true, Nagle is disabled and outbound TCP data is sent immediately. May improve latency at the expense of more datagrams.
InactivityTimeout	5000	5000	Time (ms) allowed between receiving data. Exceeded = connection aborted. 0 = disabled.
DisconnectTimeout	–	120000	Time (ms) allowed for the client to close the connection after being disconnected by the application.
OverrideApplication	–	–	Override the application for this connector. Client-sent application selection is ignored.
DefaultApplication	–	–	Default application for this listener if a client connects to an unloaded app. Overrides the global Default.
PolicyApplication	–	–	Application used for policy requests sent to this listener.
MaxInboundMessageSize	–	–	Max bytes for an inbound message. Exceeding disconnects the client. Default is MaxMessageSize.
MaxOutboundMessageSize	–	–	Max bytes for an outbound message. Exceeding disconnects the client. Default is MaxMessageSize.
CustomConnectMessageIsRequired	–	FALSE	If true, a custom prefix/suffix is required on each Connect message.
CustomConnectMessagePrefix	–	–	String ignored if sent as a prefix of a client's connect message.
CustomConnectMessageSuffix	–	–	String ignored if sent as a suffix of a client's connect message.

UDPListener

Setting	Photon Default	Config Default	Description
IPAddress	0.0.0.0	–	The IP address to listen on. 0.0.0.0 = all interfaces.
IPAddressIPv6	::	–	The IPv6 address to listen on. :: = all interfaces.
Port	5055	5055	The port to listen on.
ListenBacklog	–	500	See TCPListener.
RecvBufferSize	–	–	See TCPListener.
SendBufferSize	–	–	See TCPListener.
OverrideApplication	–	–	See TCPListener.
DefaultApplication	–	–	See TCPListener.
MaxInboundMessageSize	–	–	See TCPListener.
MaxOutboundMessageSize	–	–	See TCPListener.

WebSocketListener

Setting	Photon Default	Config Default	Description
IPAddress	0.0.0.0	–	The IP address to listen on. 0.0.0.0 = all interfaces.
IPAddressIPv6	::	–	The IPv6 address to listen on. :: = all interfaces.
Port	–	9091	The port to listen on.
ListenBacklog	–	–	See TCPListener.
RecvBufferSize	–	–	See TCPListener.
SendBufferSize	–	–	See TCPListener.
DisableNagle	TRUE	TRUE	See TCPListener.
InactivityTimeout	10000	10000	See TCPListener.
OverrideApplication	–	–	See TCPListener.
DefaultApplication	–	–	See TCPListener.
MaxInboundMessageSize	–	–	See TCPListener.
MaxOutboundMessageSize	–	–	See TCPListener.
MaxPendingWrites	–	–	See TCPListener.
MaxQueuedBuffers	–	–	See TCPListener.
DisconnectTimeout	–	–	See TCPListener.

SSL

Setting	Photon Default	Config Default	Description
Secure		FALSE	Set to true to secure a listener with SSL.
StoreName	–	MY	Name of the certificate store.
CertificateName	–	Photon	Name of the certificate to use.
UseMachineStore	–	FALSE	Defines if the machine store should be used.

TCPPolicyListener

Note: TCPFlashListener is deprecated — use TCPPolicyListener instead.

Setting	Photon Default	Config Default	Description
Address	–	–	The IP address to listen on. 0.0.0.0 = all interfaces.
Port	–	943	The port to listen on.
Application	–	–	Defines the application for this listener.
ListenBacklog	–	–	See TCPListener.
InactivityTimeout	–	1000	See TCPListener.

ConfigServer

If present, configures a listener presenting a text menu interface to telnet clients for managing apps and server shutdown.

Setting	Photon Default	Config Default	Description
IPAddress	–	–	The IP address to listen on. 0.0.0.0 = all interfaces.
Port	–	–	The port to listen on.
ListenBacklog	–	–	See TCPListener.

S2S

Setting	Photon Default	Config Default	Description
PingFrequency	–	2500	How often a ping is sent out when no data is flowing.
MaxInboundMessageSize	–	–	See TCPListener.
MaxOutboundMessageSize	–	–	See TCPListener.
RecvBufferSize	–	–	See TCPListener.
SendBufferSize	–	–	See TCPListener.
MaxPendingWrites	–	–	See TCPListener.
MaxQueuedBuffers	–	–	See TCPListener.
MaxPendingWritesMUX	–	–	Same as MaxPendingWrites but for MUX connections. Only applies if TuneFlowControlForMUX is not set.
MaxQueuedBuffersMUX	–	–	Same as MaxQueuedBuffers but for MUX connections. Only applies if TuneFlowControlForMUX is not set.
TuneFlowControlForMUX	–	–	MUX connections are configured with X × MaxPendingWrites and X × MaxQueuedBuffers.
DisableNagle	–	TRUE	See TCPListener.

OutboundENet

Setting	Photon Default	Config Default	Description
GenerateOutboundCRC	–	FALSE	If enabled, a 32-bit CRC value is appended to each UDP header.
MaxInboundMessageSize	–	–	See TCPListener.
MaxOutboundMessageSize	–	–	See TCPListener.
MTU	–	1200	Maximum transmission unit at UDP level. Defaults to 1200, same as client SDKs.
MaxChannels	–	255	Maximum number of channels the peer should support.