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Review request for sentry, Lenni Kuff, Prasad Mujumdar, and Yibing Shi. Repository: sentry Description ------- SENTRY-696 : Improve MetastorePlugin cache initialization latency This path introduces the following changes : 1) Exposes a config variable to allow cache initialization to happen asynchronously (by default false) 2) The Cache initialization itself will now be performed in parallel - It introduces a separate thread pool and attempts to extract DB/Table/Partition information as separate threadpool tasks Diffs ----- sentry-hdfs/sentry-hdfs-common/src/main/java/org/apache/sentry/hdfs/ServiceConstants.java 489d165 sentry-hdfs/sentry-hdfs-service/src/main/java/org/apache/sentry/hdfs/MetastoreCacheInitializer.java PRE-CREATION sentry-hdfs/sentry-hdfs-service/src/main/java/org/apache/sentry/hdfs/MetastorePlugin.java 7106e74 Diff: https://reviews.apache.org/r/33134/diff/ Testing ------- Thanks, Arun Suresh
