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Add CHANGES and release notes for GL #1712 and GL #1829

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This commit is contained in:
Ondřej Surý
2020-07-30 15:10:49 +02:00
committed by Matthijs Mekking
parent abc2ab9223
commit dd62275152
3 changed files with 19 additions and 0 deletions
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7
CHANGES
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@@ -1,3 +1,10 @@
5484. [func] Expire the 0 TTL RRSet quickly rather using them for
stale answers. [GL #1829]
5483. [func] Keeping "stale" answers in cache has been disabled by
default and can be re-enabled with a new configuration
option "stale-cache-enable". [GL #1712]
5482. [bug] BIND 9 would fail to bind to IPv6 addresses in a 5482. [bug] BIND 9 would fail to bind to IPv6 addresses in a
tentative state when a new IPv6 address was added to the tentative state when a new IPv6 address was added to the
system, but the Duplicate Address Detection (DAD) system, but the Duplicate Address Detection (DAD)

4
bin/named/server.c
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@@ -4366,6 +4366,10 @@ configure_view(dns_view_t *view, dns_viewlist_t *viewlist, cfg_obj_t *config,
INSIST(result == ISC_R_SUCCESS); INSIST(result == ISC_R_SUCCESS);
max_stale_ttl = ISC_MAX(cfg_obj_asduration(obj), 1); max_stale_ttl = ISC_MAX(cfg_obj_asduration(obj), 1);
} }
/*
* If 'stale-cache-enable' is false, max_stale_ttl is set to 0,
* meaning keeping stale RRsets in cache is disabled.
*/
obj = NULL; obj = NULL;
result = named_config_get(maps, "stale-answer-enable", &obj); result = named_config_get(maps, "stale-answer-enable", &obj);

8
doc/notes/notes-current.rst
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@@ -36,6 +36,9 @@ New Features
- Statistics channels have also been updated to use the new BIND network - Statistics channels have also been updated to use the new BIND network
manager API. [GL #2022] manager API. [GL #2022]
- A new configuration option ``stale-cache-enable`` has been introduced to
enable or disable the keeping of stale answers in cache. [GL #1712]
Feature Changes Feature Changes
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~
@@ -46,6 +49,11 @@ Feature Changes
prevents interruption to query resolution when the hash tables need to be prevents interruption to query resolution when the hash tables need to be
increased in size. [GL #1775] increased in size. [GL #1775]
- Keeping stale answers in cache has been disabled by default.
- The resource records received with 0 TTL are no longer kept in the cache
to be used for stale answers. [GL #1829]
Bug Fixes Bug Fixes
~~~~~~~~~ ~~~~~~~~~