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Describe replication_threads configuration option #3157

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merged 2 commits into from
Sep 28, 2022
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Describe replication_threads configuration option #3157

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Add replication_threads entry
xuniq Sep 20, 2022
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xuniq Sep 28, 2022
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22 changes: 22 additions & 0 deletions doc/reference/configuration/cfg_replication.rst
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* :ref:`instance_uuid <cfg_replication-instance_uuid>`
* :ref:`replication_synchro_quorum <cfg_replication-replication_synchro_quorum>`
* :ref:`replication_synchro_timeout <cfg_replication-replication_synchro_timeout>`
* :ref:`replication_threads <cfg_replication-replication_replication_threads>`
* :ref:`election_mode <cfg_replication-election_mode>`
* :ref:`election_timeout <cfg_replication-election_timeout>`
* :ref:`election_fencing_enabled <cfg_replication-election_fencing_enabled>`
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| Environment variable: TT_REPLICATION_SYNCHRO_TIMEOUT
| Dynamic: **yes**

.. _cfg_replication-replication_replication_threads:

.. confval:: replication_threads

Since version :doc:`2.10.0 </release/2.10.0>`.
The number of threads spawned to decode the incoming replication data.

The default value is `1`.
It means that a single separate thread handles all the incoming replication streams.
In most cases, one thread is enough for all incoming data.
Therefore, it is likely that the user will not need to set this configuration option.

Possible values range from 1 to 1000.
If there are multiple replication threads, connections to serve are distributed evenly between the threads.

| Type: number
| Default: 1
| Possible values: from 1 to 1000
| Environment variable: TT_REPLICATION_THREADS
| Dynamic: **no**

.. _cfg_replication-election_mode:

.. confval:: election_mode
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