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fix an existing typo in the documentation

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Chaoguang Lin 2021-05-28 18:46:08 +00:00
parent 5baeed3e2f
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documentation/sphinx/source/developer-guide.rst
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@ -971,7 +971,7 @@ For example, you can change a process type or update coordinators by manipulatin
#. ``\xff\xff/configuration/process/class_type/<address> := <class_type>`` Read/write. Reading keys in the range will retrieve processes' class types. Setting keys in the range will update processes' class types. The process matching ``<address>`` will be assigned to the given class type if the commit is successful. The valid class types are ``storage``, ``transaction``, ``resolution``, etc. A full list of class type can be found via ``fdbcli`` command ``help setclass``. Clearing keys is forbidden in the range. Instead, you can set the type as ``default``, which will clear the assigned class type if existing. For more details, see help text of ``fdbcli`` command ``setclass``.
#. ``\xff\xff/configuration/process/class_source/<address> := <class_source>`` Read-only. Reading keys in the range will retrieve processes' class source. The class source is one of ``command_line``, ``configure_auto``, ``set_class`` and ``invalid``, indicating the source that the process's class type comes from.
#. ``\xff\xff/configuration/coordinators/processes := <ip:port>,<ip:port>,...,<ip:port>`` Read/write. A single key, if read, will return a comma delimited string of coordinators's network addresses. Thus to provide a new set of cooridinators, set the key with a correct formatted string of new coordinators' network addresses. As there's always the need to have coordinators, clear on the key is forbidden and a transaction will fail with the ``special_keys_api_failure`` error if the clear is committed. For more details, see help text of ``fdbcli`` command ``coordinators``.
#. ``\xff\xff/configuration/coordinators/processes := <ip:port>,<ip:port>,...,<ip:port>`` Read/write. A single key, if read, will return a comma delimited string of coordinators' network addresses. Thus to provide a new set of cooridinators, set the key with a correct formatted string of new coordinators' network addresses. As there's always the need to have coordinators, clear on the key is forbidden and a transaction will fail with the ``special_keys_api_failure`` error if the clear is committed. For more details, see help text of ``fdbcli`` command ``coordinators``.
#. ``\xff\xff/configuration/coordinators/cluster_description := <new_description>`` Read/write. A single key, if read, will return the cluster description. Thus modifying the key will update the cluster decription. The new description needs to match ``[A-Za-z0-9_]+``, otherwise, the ``special_keys_api_failure`` error will be thrown. In addition, clear on the key is meaningless thus forbidden. For more details, see help text of ``fdbcli`` command ``coordinators``.
The ``<address>`` here is the network address of the corresponding process. Thus the general form is ``ip:port``.