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Posted to issues@kylin.apache.org by GitBox <gi...@apache.org> on 2019/12/02 07:08:45 UTC
[GitHub] [kylin] hit-lacus commented on a change in pull request #961:
KYLIN-4167 Phase2
hit-lacus commented on a change in pull request #961: KYLIN-4167 Phase2
URL: https://github.com/apache/kylin/pull/961#discussion_r352444230
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File path: stream-coordinator/src/main/java/org/apache/kylin/stream/coordinator/assign/AssignmentsCache.java
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@@ -30,54 +33,70 @@
import org.apache.kylin.stream.coordinator.StreamMetadataStoreFactory;
import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
import org.apache.kylin.stream.core.model.CubeAssignment;
import org.apache.kylin.stream.core.model.ReplicaSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+/**
+ * Introduce AssignmentsCache to reduce pressure of
+ * @see StreamMetadataStore .
+ */
public class AssignmentsCache {
- private static volatile AssignmentsCache instance = new AssignmentsCache();
Review comment:
It is a `Singleton`.
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