forked from MirrorHub/synapse
Change default sync_response_cache_duration
(#13042)
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5 changed files with 11 additions and 4 deletions
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changelog.d/13042.misc
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changelog.d/13042.misc
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Set default `sync_response_cache_duration` to two minutes.
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@ -103,4 +103,10 @@ server_notices:
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system_mxid_avatar_url: ""
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system_mxid_avatar_url: ""
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room_name: "Server Alert"
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room_name: "Server Alert"
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# Disable sync cache so that initial `/sync` requests are up-to-date.
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caches:
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sync_response_cache_duration: 0
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{% include "shared-orig.yaml.j2" %}
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{% include "shared-orig.yaml.j2" %}
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@ -1137,8 +1137,8 @@ Caching can be configured through the following sub-options:
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* `sync_response_cache_duration`: Controls how long the results of a /sync request are
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* `sync_response_cache_duration`: Controls how long the results of a /sync request are
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cached for after a successful response is returned. A higher duration can help clients
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cached for after a successful response is returned. A higher duration can help clients
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with intermittent connections, at the cost of higher memory usage.
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with intermittent connections, at the cost of higher memory usage.
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By default, this is zero, which means that sync responses are not cached
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A value of zero means that sync responses are not cached.
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at all.
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Defaults to 2m.
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* `cache_autotuning` and its sub-options `max_cache_memory_usage`, `target_cache_memory_usage`, and
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* `cache_autotuning` and its sub-options `max_cache_memory_usage`, `target_cache_memory_usage`, and
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`min_cache_ttl` work in conjunction with each other to maintain a balance between cache memory
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`min_cache_ttl` work in conjunction with each other to maintain a balance between cache memory
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usage and cache entry availability. You must be using [jemalloc](https://github.com/matrix-org/synapse#help-synapse-is-slow-and-eats-all-my-ramcpu)
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usage and cache entry availability. You must be using [jemalloc](https://github.com/matrix-org/synapse#help-synapse-is-slow-and-eats-all-my-ramcpu)
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@ -206,7 +206,7 @@ class CacheConfig(Config):
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self.cache_autotuning["min_cache_ttl"] = self.parse_duration(min_cache_ttl)
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self.cache_autotuning["min_cache_ttl"] = self.parse_duration(min_cache_ttl)
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self.sync_response_cache_duration = self.parse_duration(
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self.sync_response_cache_duration = self.parse_duration(
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cache_config.get("sync_response_cache_duration", 0)
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cache_config.get("sync_response_cache_duration", "2m")
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)
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)
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def resize_all_caches(self) -> None:
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def resize_all_caches(self) -> None:
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@ -169,7 +169,7 @@ def default_config(name, parse=False):
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# disable user directory updates, because they get done in the
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# disable user directory updates, because they get done in the
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# background, which upsets the test runner.
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# background, which upsets the test runner.
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"update_user_directory": False,
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"update_user_directory": False,
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"caches": {"global_factor": 1},
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"caches": {"global_factor": 1, "sync_response_cache_duration": 0},
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"listeners": [{"port": 0, "type": "http"}],
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"listeners": [{"port": 0, "type": "http"}],
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}
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}
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