merlimat commented on a change in pull request #12390:
URL: https://github.com/apache/pulsar/pull/12390#discussion_r730318711
##########
File path:
pulsar-metadata/src/main/java/org/apache/pulsar/metadata/impl/LocalMemoryMetadataStore.java
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@@ -55,56 +62,85 @@
private final NavigableMap<String, Value> map;
private final AtomicLong sequentialIdGenerator;
- public LocalMemoryMetadataStore(String metadataURL, MetadataStoreConfig
metadataStoreConfig) {
- map = new TreeMap<>();
- sequentialIdGenerator = new AtomicLong();
- }
-
- @Override
- public synchronized CompletableFuture<Optional<GetResult>> get(String
path) {
- if (!isValidPath(path)) {
- return FutureUtils.exception(new MetadataStoreException(""));
+ private static final Map<String, NavigableMap<String, Value>> STATIC_MAPS
= new MapMaker()
+ .weakValues().makeMap();
+ private static final Map<String, AtomicLong> STATIC_ID_GEN_MAP = new
MapMaker()
Review comment:
It's a static map, so it would be never cleaned up otherwise.
It will not make the test unpredictable because there will be hard
references to the map value for each instance of `LocalMemoryMetadataStore`
that will keep it from getting GCed.
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