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https://issues.apache.org/jira/browse/SPARK-2940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin updated SPARK-2940:
-------------------------------
Assignee: Reynold Xin
> Support fetching multiple blocks in a single request in Netty network module
> ----------------------------------------------------------------------------
>
> Key: SPARK-2940
> URL: https://issues.apache.org/jira/browse/SPARK-2940
> Project: Spark
> Issue Type: Sub-task
> Components: Shuffle, Spark Core
> Reporter: Reynold Xin
> Assignee: Reynold Xin
>
> ShuffleCopier.getBlock gets one block at a time (in one request).
> {code}
> def getBlock(host: String, port: Int, blockId: BlockId,
> resultCollectCallback: (BlockId, Long, ByteBuf) => Unit) {
> val handler = new
> ShuffleCopier.ShuffleClientHandler(resultCollectCallback)
> val connectTimeout = conf.getInt("spark.shuffle.netty.connect.timeout",
> 60000)
> val fc = new FileClient(handler, connectTimeout)
> try {
> fc.init()
> fc.connect(host, port)
> fc.sendRequest(blockId.name)
> fc.waitForClose()
> fc.close()
> } catch {
> // Handle any socket-related exceptions in FileClient
> case e: Exception => {
> logError("Shuffle copy of block " + blockId + " from " + host + ":" +
> port + " failed", e)
> handler.handleError(blockId)
> }
> }
> }
> {code}
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