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rem: doc: Remove stub chapter about load balancing from ARM

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Related: !6610

Merge branch 'pspacek/doc-remove-load-balancing' into 'main'

See merge request isc-projects/bind9!11117
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Petr Špaček 2025-10-21 09:42:12 +00:00
commit 98bddb0fe0
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doc/arm/config-resolve.inc.rst
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@ -531,36 +531,3 @@ hierarchy (does not use the public network) for any recursive query for which:
All other recursive queries will result in access to the DNS hierarchy to
resolve the query.
.. _load_balancing:
Load Balancing
--------------
A primitive form of load balancing can be achieved in the DNS by using multiple
resource records (RRs) in a :ref:`zone file<zone_file>` (such as multiple A
records) for one name.
For example, assuming three HTTP servers with network addresses of
10.0.0.1, 10.0.0.2, and 10.0.0.3, a set of records such as the following
means that clients will connect to each machine one-third of the time:
+-----------+------+----------+----------+----------------------------+
| Name | TTL | CLASS | TYPE | Resource Record (RR) Data |
+-----------+------+----------+----------+----------------------------+
| www | 600 | IN | A | 10.0.0.1 |
+-----------+------+----------+----------+----------------------------+
| | 600 | IN | A | 10.0.0.2 |
+-----------+------+----------+----------+----------------------------+
| | 600 | IN | A | 10.0.0.3 |
+-----------+------+----------+----------+----------------------------+
When a resolver queries for these records, BIND rotates them and
responds to the query with the records in a random order. In the
example above, clients randomly receive records in the order 1, 2,
3; 2, 3, 1; and 3, 1, 2. Most clients use the first record returned
and discard the rest.
For more detail on ordering responses, refer to the
:ref:`rrset-order<rrset_ordering>` statement in the
:namedconf:ref:`options` block.