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From rxin <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-6479][Block Manager]Create off-heap blo...
Date Thu, 23 Apr 2015 00:35:48 GMT
Github user rxin commented on a diff in the pull request:

    https://github.com/apache/spark/pull/5430#discussion_r28928005
  
    --- Diff: core/src/main/scala/org/apache/spark/storage/ExtBlockStore.scala ---
    @@ -0,0 +1,169 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You under the Apache License, Version 2.0
    + * (the "License"); you may not use this file except in compliance with
    + * the License.  You may obtain a copy of the License at
    + *
    + *    http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +
    +package org.apache.spark.storage
    +
    +import java.nio.ByteBuffer
    +import org.apache.spark.Logging
    +import org.apache.spark.util.Utils
    +
    +import scala.util.control.NonFatal
    +
    +
    +/**
    + * Stores BlockManager blocks on ExtBlkStore.
    + * We capture any potential exception from underlying implementation
    + * and return with the expected failure value
    + */
    +private[spark] class ExtBlockStore(blockManager: BlockManager, executorId: String)
    +  extends BlockStore(blockManager: BlockManager) with Logging {
    +
    +  lazy val extBlkStoreManager: Option[ExtBlockManager] = createBlkManager()
    +
    +  logInfo("ExtBlkStore started")
    +
    +  override def getSize(blockId: BlockId): Long = {
    +    try {
    +      extBlkStoreManager.map(_.getSize(blockId)).getOrElse(0)
    +    } catch {
    +      case NonFatal(t) => logError(s"error in getSize from $blockId", t)
    --- End diff --
    
    put this on the 2nd line.


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