HDFS-10197. TestFsDatasetCache failing intermittently due to timeout. Contributed by Lin Yiqun.

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/DFSTestUtil.java

@@ -1464,7 +1464,7 @@ public class DFSTestUtil {
             NativeIO.POSIX.getCacheManipulator().getMemlockLimit());
         return true;
       }
-    }, 100, 60000);
+    }, 100, 120000);
     return expectedCacheUsed;
   }
 

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestFsDatasetCache.java

@@ -88,6 +88,8 @@ import org.apache.log4j.LogManager;
 import com.google.common.base.Supplier;
 import com.google.common.primitives.Ints;
 
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_FSDATASETCACHE_MAX_THREADS_PER_VOLUME_KEY;
+
 public class TestFsDatasetCache {
   private static final Log LOG = LogFactory.getLog(TestFsDatasetCache.class);
 
@@ -124,6 +126,7 @@ public class TestFsDatasetCache {
     conf.setLong(DFSConfigKeys.DFS_DATANODE_MAX_LOCKED_MEMORY_KEY,
         CACHE_CAPACITY);
     conf.setLong(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);
+    conf.setInt(DFS_DATANODE_FSDATASETCACHE_MAX_THREADS_PER_VOLUME_KEY, 10);
 
     prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
     NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());
@@ -454,7 +457,7 @@ public class TestFsDatasetCache {
     }, 100, 10000);
   }
 
-  @Test(timeout=60000)
+  @Test(timeout=600000)
   public void testPageRounder() throws Exception {
     // Write a small file
     Path fileName = new Path("/testPageRounder");