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| author | Richard van der Hoff <github@rvanderhoff.org.uk> | 2018-02-05 16:34:36 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-02-05 16:34:36 +0100 |
| commit | db91e72adee90f7d7bacf25f0ed517074c46e64a (patch) | |
| tree | e6e8d43cd2c17bb056fb798c059d72451dd210a8 /synapse/util/caches/descriptors.py | |
| parent | Fix broken unit test for media storage (diff) | |
| parent | report metrics on number of cache evictions (diff) | |
| download | synapse-db91e72adee90f7d7bacf25f0ed517074c46e64a.tar.xz | |
Merge pull request #2844 from matrix-org/rav/evicted_metrics
montoring metrics for number of cache evictions
Diffstat (limited to 'synapse/util/caches/descriptors.py')
| -rw-r--r-- | synapse/util/caches/descriptors.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index af65bfe7b8..bf3a66eae4 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -75,6 +75,7 @@ class Cache(object): self.cache = LruCache( max_size=max_entries, keylen=keylen, cache_type=cache_type, size_callback=(lambda d: len(d)) if iterable else None, + evicted_callback=self._on_evicted, ) self.name = name @@ -83,6 +84,9 @@ class Cache(object): self.thread = None self.metrics = register_cache(name, self.cache) + def _on_evicted(self, evicted_count): + self.metrics.inc_evictions(evicted_count) + def check_thread(self): expected_thread = self.thread if expected_thread is None: |