y-io_2.10.1.3.3.source-code.reference.conf Maven / Gradle / Ivy
#################################
# Akka IO Reference Config File #
#################################
# This is the reference config file that contains all the default settings.
# Make your edits/overrides in your application.conf.
akka {
io {
# By default the select loops run on dedicated threads, hence using a
# PinnedDispatcher
pinned-dispatcher {
type = "PinnedDispatcher"
executor = "thread-pool-executor"
thread-pool-executor.allow-core-pool-timeout = off
}
tcp {
# The number of selectors to stripe the served channels over; each of
# these will use one select loop on the selector-dispatcher.
nr-of-selectors = 1
# Maximum number of open channels supported by this TCP module; there is
# no intrinsic general limit, this setting is meant to enable DoS
# protection by limiting the number of concurrently connected clients.
# Also note that this is a "soft" limit; in certain cases the implementation
# will accept a few connections more or a few less than the number configured
# here. Must be an integer > 0 or "unlimited".
max-channels = 256000
# When trying to assign a new connection to a selector and the chosen
# selector is at full capacity, retry selector choosing and assignment
# this many times before giving up
selector-association-retries = 10
# The maximum number of connection that are accepted in one go,
# higher numbers decrease latency, lower numbers increase fairness on
# the worker-dispatcher
batch-accept-limit = 10
# The number of bytes per direct buffer in the pool used to read or write
# network data from the kernel.
direct-buffer-size = 128 KiB
# The maximal number of direct buffers kept in the direct buffer pool for
# reuse.
direct-buffer-pool-limit = 1000
# The duration a connection actor waits for a `Register` message from
# its commander before aborting the connection.
register-timeout = 5s
# The maximum number of bytes delivered by a `Received` message. Before
# more data is read from the network the connection actor will try to
# do other work.
max-received-message-size = unlimited
# Enable fine grained logging of what goes on inside the implementation.
# Be aware that this may log more than once per message sent to the actors
# of the tcp implementation.
trace-logging = off
# Fully qualified config path which holds the dispatcher configuration
# to be used for running the select() calls in the selectors
selector-dispatcher = "akka.io.pinned-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the read/write worker actors
worker-dispatcher = "akka.actor.default-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the selector management actors
management-dispatcher = "akka.actor.default-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# on which file IO tasks are scheduled
file-io-dispatcher = "akka.actor.default-dispatcher"
# The maximum number of bytes (or "unlimited") to transfer in one batch when using
# `WriteFile` command which uses `FileChannel.transferTo` to pipe files to a TCP socket.
# On some OS like Linux `FileChannel.transferTo` may block for a long time when network
# IO is faster than file IO. Decreasing the value may improve fairness while increasing
# may improve throughput.
file-io-transferTo-limit = 512 KiB
# The number of times to retry the `finishConnect` call after being notified about
# OP_CONNECT. Retries are needed if the OP_CONNECT notification doesn't imply that
# `finishConnect` will succeed. However, on Android this assumption isn't true.
finish-connect-retries = 5
}
udp {
# The number of selectors to stripe the served channels over; each of
# these will use one select loop on the selector-dispatcher.
nr-of-selectors = 1
# Maximum number of open channels supported by this UDP module Generally
# UDP does not require a large number of channels, therefore it is
# recommended to keep this setting low.
max-channels = 4096
# The select loop can be used in two modes:
# - setting "infinite" will select without a timeout, hogging a thread
# - setting a positive timeout will do a bounded select call,
# enabling sharing of a single thread between multiple selectors
# (in this case you will have to use a different configuration for the
# selector-dispatcher, e.g. using "type=Dispatcher" with size 1)
# - setting it to zero means polling, i.e. calling selectNow()
select-timeout = infinite
# When trying to assign a new connection to a selector and the chosen
# selector is at full capacity, retry selector choosing and assignment
# this many times before giving up
selector-association-retries = 10
# The maximum number of datagrams that are read in one go,
# higher numbers decrease latency, lower numbers increase fairness on
# the worker-dispatcher
receive-throughput = 3
# The number of bytes per direct buffer in the pool used to read or write
# network data from the kernel.
direct-buffer-size = 128 KiB
# The maximal number of direct buffers kept in the direct buffer pool for
# reuse.
direct-buffer-pool-limit = 1000
# The maximum number of bytes delivered by a `Received` message. Before
# more data is read from the network the connection actor will try to
# do other work.
received-message-size-limit = unlimited
# Enable fine grained logging of what goes on inside the implementation.
# Be aware that this may log more than once per message sent to the actors
# of the tcp implementation.
trace-logging = off
# Fully qualified config path which holds the dispatcher configuration
# to be used for running the select() calls in the selectors
selector-dispatcher = "akka.io.pinned-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the read/write worker actors
worker-dispatcher = "akka.actor.default-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the selector management actors
management-dispatcher = "akka.actor.default-dispatcher"
}
udp-connected {
# The number of selectors to stripe the served channels over; each of
# these will use one select loop on the selector-dispatcher.
nr-of-selectors = 1
# Maximum number of open channels supported by this UDP module Generally
# UDP does not require a large number of channels, therefore it is
# recommended to keep this setting low.
max-channels = 4096
# The select loop can be used in two modes:
# - setting "infinite" will select without a timeout, hogging a thread
# - setting a positive timeout will do a bounded select call,
# enabling sharing of a single thread between multiple selectors
# (in this case you will have to use a different configuration for the
# selector-dispatcher, e.g. using "type=Dispatcher" with size 1)
# - setting it to zero means polling, i.e. calling selectNow()
select-timeout = infinite
# When trying to assign a new connection to a selector and the chosen
# selector is at full capacity, retry selector choosing and assignment
# this many times before giving up
selector-association-retries = 10
# The maximum number of datagrams that are read in one go,
# higher numbers decrease latency, lower numbers increase fairness on
# the worker-dispatcher
receive-throughput = 3
# The number of bytes per direct buffer in the pool used to read or write
# network data from the kernel.
direct-buffer-size = 128 KiB
# The maximal number of direct buffers kept in the direct buffer pool for
# reuse.
direct-buffer-pool-limit = 1000
# The maximum number of bytes delivered by a `Received` message. Before
# more data is read from the network the connection actor will try to
# do other work.
received-message-size-limit = unlimited
# Enable fine grained logging of what goes on inside the implementation.
# Be aware that this may log more than once per message sent to the actors
# of the tcp implementation.
trace-logging = off
# Fully qualified config path which holds the dispatcher configuration
# to be used for running the select() calls in the selectors
selector-dispatcher = "akka.io.pinned-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the read/write worker actors
worker-dispatcher = "akka.actor.default-dispatcher"
# Fully qualified config path which holds the dispatcher configuration
# for the selector management actors
management-dispatcher = "akka.actor.default-dispatcher"
}
}
}