ceph/doc/rados/configuration/ms-ref.rst
Kefu Chai ee7184639d common/options: drop ms_async_max_op_threads
the last user of this option was DPDKStack::DPDKStack(). which used it
to initialize its func vector. but this option is not used anymore.

so let's drop it.

Signed-off-by: Kefu Chai <kchai@redhat.com>
2021-02-26 11:28:07 +08:00

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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_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_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``