[NO ISSUE][STO] Limit BufferCacheHeaderHelper Pool Size

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Limit the BufferCacheHeaderHelper pool size to the IO
  requests queue size.

Change-Id: I7914241110e9fe3e5e21f35cf03ba6ecdf132343
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2727
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Murtadha Hubail <mhubail@apache.org>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Michael Blow <mblow@apache.org>
diff --git a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/io/IOManager.java b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/io/IOManager.java
index 1f845bf..d13ca8d 100644
--- a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/io/IOManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/io/IOManager.java
@@ -55,8 +55,8 @@
     /*
      * Constants
      */
+    public static final int IO_REQUEST_QUEUE_SIZE = 100; // TODO: Make configurable
     private static final Logger LOGGER = LogManager.getLogger();
-    private static final int IO_REQUEST_QUEUE_SIZE = 100; // TODO: Make configurable
     private static final String WORKSPACE_FILE_SUFFIX = ".waf";
     private static final FilenameFilter WORKSPACE_FILES_FILTER = (dir, name) -> name.endsWith(WORKSPACE_FILE_SUFFIX);
     /*
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/pom.xml b/hyracks-fullstack/hyracks/hyracks-storage-common/pom.xml
index 281960d..0d8edd6 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/pom.xml
@@ -49,6 +49,11 @@
       <version>${project.version}</version>
     </dependency>
     <dependency>
+      <groupId>org.apache.hyracks</groupId>
+      <artifactId>hyracks-control-nc</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-api</artifactId>
     </dependency>
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
index f8facf5..5d8a701 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
@@ -18,6 +18,8 @@
  */
 package org.apache.hyracks.storage.common.buffercache;
 
+import static org.apache.hyracks.control.nc.io.IOManager.IO_REQUEST_QUEUE_SIZE;
+
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.ByteBuffer;
@@ -27,9 +29,9 @@
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
-import java.util.Queue;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
@@ -74,7 +76,8 @@
     private final CleanerThread cleanerThread;
     private final Map<Integer, BufferedFileHandle> fileInfoMap;
     private final AsyncFIFOPageQueueManager fifoWriter;
-    private final Queue<BufferCacheHeaderHelper> headerPageCache = new ConcurrentLinkedQueue<>();
+    private final BlockingQueue<BufferCacheHeaderHelper> headerPageCache =
+            new ArrayBlockingQueue<>(IO_REQUEST_QUEUE_SIZE);
 
     //DEBUG
     private static final Level fileOpsLevel = Level.DEBUG;