import quincy beta 17.1.0

[ceph.git] / ceph / doc / rados / configuration / ms-ref.rst

diff --git a/ceph/doc/rados/configuration/ms-ref.rst b/ceph/doc/rados/configuration/ms-ref.rst
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-===========
- Messaging
-===========
-
-General Settings
-================
-
-``ms_tcp_nodelay``
-
-:Description: Disables Nagle's algorithm on messenger TCP sessions.
-:Type: Boolean
-:Required: No
-:Default: ``true``
-
-
-``ms_initial_backoff``
-
-:Description: The initial time to wait before reconnecting on a fault.
-:Type: Double
-:Required: No
-:Default: ``.2``
-
-
-``ms_max_backoff``
-
-:Description: The maximum time to wait before reconnecting on a fault.
-:Type: Double
-:Required: No
-:Default: ``15.0``
-
-
-``ms_nocrc``
-
-:Description: Disables CRC on network messages.  May increase performance if CPU limited.
-:Type: Boolean
-:Required: No
-:Default: ``false``
-
-
-``ms_die_on_bad_msg``
-
-:Description: Debug option; do not configure.
-:Type: Boolean
-:Required: No
-:Default: ``false``
-
-
-``ms_dispatch_throttle_bytes``
-
-:Description: Throttles total size of messages waiting to be dispatched.
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``100 << 20``
-
-
-``ms_bind_ipv6``
-
-:Description: Enable to bind daemons to IPv6 addresses instead of IPv4. Not required if you specify a daemon or cluster IP.
-:Type: Boolean
-:Required: No
-:Default: ``false``
-
-
-``ms_rwthread_stack_bytes``
-
-:Description: Debug option for stack size; do not configure.
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``1024 << 10``
-
-
-``ms_tcp_read_timeout``
-
-:Description: Controls how long (in seconds) the messenger will wait before closing an idle connection.
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``900``
-
-
-``ms_inject_socket_failures``
-
-:Description: Debug option; do not configure.
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``0``
-
-Async messenger options
-=======================
-
-
-``ms_async_transport_type``
-
-:Description: Transport type used by Async Messenger. Can be ``posix``, ``dpdk``
-              or ``rdma``. Posix uses standard TCP/IP networking and is default. 
-              Other transports may be experimental and support may be limited.
-:Type: String
-:Required: No
-:Default: ``posix``
-
-
-``ms_async_op_threads``
-
-:Description: Initial number of worker threads used by each Async Messenger instance.
-              Should be at least equal to highest number of replicas, but you can
-              decrease it if you are low on CPU core count and/or you host a lot of
-              OSDs on single server.
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``3``
-
-
-``ms_async_max_op_threads``
-
-:Description: Maximum number of worker threads used by each Async Messenger instance. 
-              Set to lower values when your machine has limited CPU count, and increase 
-              when your CPUs are underutilized (i. e. one or more of CPUs are
-              constantly on 100% load during I/O operations).
-:Type: 64-bit Unsigned Integer
-:Required: No
-:Default: ``5``
-
-
-``ms_async_send_inline``
-
-:Description: Send messages directly from the thread that generated them instead of
-              queuing and sending from Async Messenger thread. This option is known
-              to decrease performance on systems with a lot of CPU cores, so it's
-              disabled by default.
-:Type: Boolean
-:Required: No
-:Default: ``false``
-
-