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rename dns_cache_max_size to dns_cache_max_entries

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This commit is contained in:
Kirill Nikiforov 2024-02-29 02:32:13 +03:00
parent 2cc0da863e
commit 2744fc0c2d
7 changed files with 12 additions and 12 deletions
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6
docs/en/operations/server-configuration-parameters/settings.md
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@ -200,9 +200,9 @@ Type: Bool
Default: 0 Default: 0
## dns_cache_max_size ## dns_cache_max_entries
Internal DNS cache max size in bytes. Internal DNS cache max entries.
:::note :::note
ClickHouse also has a reverse cache, so the actual memory usage could be twice as much. ClickHouse also has a reverse cache, so the actual memory usage could be twice as much.
@ -210,7 +210,7 @@ ClickHouse also has a reverse cache, so the actual memory usage could be twice a
Type: UInt64 Type: UInt64
Default: 1048576 Default: 10000
## dns_cache_update_period ## dns_cache_update_period

2
docs/en/operations/system-tables/dns_cache.md
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@ -33,6 +33,6 @@ Result:
**See also** **See also**
- [disable_internal_dns_cache setting](../../operations/server-configuration-parameters/settings.md#disable_internal_dns_cache) - [disable_internal_dns_cache setting](../../operations/server-configuration-parameters/settings.md#disable_internal_dns_cache)
- [dns_cache_max_size setting](../../operations/server-configuration-parameters/settings.md#dns_cache_max_size) - [dns_cache_max_entries setting](../../operations/server-configuration-parameters/settings.md#dns_cache_max_entries)
- [dns_cache_update_period setting](../../operations/server-configuration-parameters/settings.md#dns_cache_update_period) - [dns_cache_update_period setting](../../operations/server-configuration-parameters/settings.md#dns_cache_update_period)
- [dns_max_consecutive_failures setting](../../operations/server-configuration-parameters/settings.md#dns_max_consecutive_failures) - [dns_max_consecutive_failures setting](../../operations/server-configuration-parameters/settings.md#dns_max_consecutive_failures)

2
docs/en/sql-reference/statements/system.md
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@ -68,7 +68,7 @@ RELOAD FUNCTION [ON CLUSTER cluster_name] function_name
Clears ClickHouse’s internal DNS cache. Sometimes (for old ClickHouse versions) it is necessary to use this command when changing the infrastructure (changing the IP address of another ClickHouse server or the server used by dictionaries). Clears ClickHouse’s internal DNS cache. Sometimes (for old ClickHouse versions) it is necessary to use this command when changing the infrastructure (changing the IP address of another ClickHouse server or the server used by dictionaries).
For more convenient (automatic) cache management, see disable_internal_dns_cache, dns_cache_max_size, dns_cache_update_period parameters. For more convenient (automatic) cache management, see disable_internal_dns_cache, dns_cache_max_entries, dns_cache_update_period parameters.
## DROP MARK CACHE ## DROP MARK CACHE

2
programs/server/Server.cpp
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@ -1774,7 +1774,7 @@ try
} }
else else
{ {
DNSResolver::instance().setCacheMaxSize(server_settings.dns_cache_max_size); DNSResolver::instance().setCacheMaxEntries(server_settings.dns_cache_max_entries);
/// Initialize a watcher periodically updating DNS cache /// Initialize a watcher periodically updating DNS cache
dns_cache_updater = std::make_unique<DNSCacheUpdater>( dns_cache_updater = std::make_unique<DNSCacheUpdater>(

6
src/Common/DNSResolver.cpp
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@ -289,10 +289,10 @@ void DNSResolver::setDisableCacheFlag(bool is_disabled)
impl->disable_cache = is_disabled; impl->disable_cache = is_disabled;
} }
void DNSResolver::setCacheMaxSize(const UInt64 cache_max_size) void DNSResolver::setCacheMaxEntries(const UInt64 cache_max_entries)
{ {
impl->cache_address.setMaxSizeInBytes(cache_max_size); impl->cache_address.setMaxSizeInBytes(cache_max_entries);
impl->cache_host.setMaxSizeInBytes(cache_max_size); impl->cache_host.setMaxSizeInBytes(cache_max_entries);
} }
String DNSResolver::getHostName() String DNSResolver::getHostName()

4
src/Common/DNSResolver.h
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@ -52,8 +52,8 @@ public:
/// Disables caching /// Disables caching
void setDisableCacheFlag(bool is_disabled = true); void setDisableCacheFlag(bool is_disabled = true);
/// Set a limit of cache size in bytes /// Set a limit of entries in cache
void setCacheMaxSize(const UInt64 cache_max_size); void setCacheMaxEntries(const UInt64 cache_max_entries);
/// Drops all caches /// Drops all caches
void dropCache(); void dropCache();

2
src/Core/ServerSettings.h
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@ -81,7 +81,7 @@ namespace DB
M(UInt64, mmap_cache_size, DEFAULT_MMAP_CACHE_MAX_SIZE, "A cache for mmapped files.", 0) \ M(UInt64, mmap_cache_size, DEFAULT_MMAP_CACHE_MAX_SIZE, "A cache for mmapped files.", 0) \
\ \
M(Bool, disable_internal_dns_cache, false, "Disable internal DNS caching at all.", 0) \ M(Bool, disable_internal_dns_cache, false, "Disable internal DNS caching at all.", 0) \
M(UInt64, dns_cache_max_size, (1024 * 1024), "Internal DNS cache max size in bytes.", 0) \ M(UInt64, dns_cache_max_entries, 10000, "Internal DNS cache max entries.", 0) \
M(Int32, dns_cache_update_period, 15, "Internal DNS cache update period in seconds.", 0) \ M(Int32, dns_cache_update_period, 15, "Internal DNS cache update period in seconds.", 0) \
M(UInt32, dns_max_consecutive_failures, 10, "Max DNS resolve failures of a hostname before dropping the hostname from ClickHouse DNS cache.", 0) \ M(UInt32, dns_max_consecutive_failures, 10, "Max DNS resolve failures of a hostname before dropping the hostname from ClickHouse DNS cache.", 0) \
\ \