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Limit stream change cache size too
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ce2cdced61
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@ -18,11 +18,15 @@ from synapse.util.caches import cache_counter, caches_by_name
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from blist import sorteddict
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from blist import sorteddict
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import logging
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import logging
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import os
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logger = logging.getLogger(__name__)
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logger = logging.getLogger(__name__)
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CACHE_SIZE_FACTOR = float(os.environ.get("SYNAPSE_CACHE_FACTOR", 0.1))
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class StreamChangeCache(object):
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class StreamChangeCache(object):
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"""Keeps track of the stream positions of the latest change in a set of entities.
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"""Keeps track of the stream positions of the latest change in a set of entities.
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@ -33,7 +37,7 @@ class StreamChangeCache(object):
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old then the cache will simply return all given entities.
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old then the cache will simply return all given entities.
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"""
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"""
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def __init__(self, name, current_stream_pos, max_size=10000, prefilled_cache={}):
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def __init__(self, name, current_stream_pos, max_size=10000, prefilled_cache={}):
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self._max_size = max_size
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self._max_size = int(max_size * CACHE_SIZE_FACTOR)
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self._entity_to_key = {}
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self._entity_to_key = {}
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self._cache = sorteddict()
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self._cache = sorteddict()
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self._earliest_known_stream_pos = current_stream_pos
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self._earliest_known_stream_pos = current_stream_pos
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