Vanlightly commented on a change in pull request #2868:
URL: https://github.com/apache/bookkeeper/pull/2868#discussion_r739068954



##########
File path: 
bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/ReadCache.java
##########
@@ -76,18 +82,24 @@ public ReadCache(ByteBufAllocator allocator, long 
maxCacheSize, int maxSegmentSi
             cacheSegments.add(Unpooled.directBuffer(segmentSize, segmentSize));
             cacheIndexes.add(new ConcurrentLongLongPairHashMap(4096, 2 * 
Runtime.getRuntime().availableProcessors()));
         }
+        isStorageShutdown = false;
     }
 
     @Override
     public void close() {
         cacheSegments.forEach(ByteBuf::release);
+        isStorageShutdown = true;

Review comment:
       This will need the write lock else a read can still sneak through.




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