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From lonely Feb <lonely8...@gmail.com>
Subject Re: broadcast hang out
Date Mon, 16 Mar 2015 05:41:05 GMT
Anyone can help? Thanks a lot !

2015-03-16 11:45 GMT+08:00 lonely Feb <lonely8658@gmail.com>:

> yes
>
> 2015-03-16 11:43 GMT+08:00 Mridul Muralidharan <mridul@gmail.com>:
>
>> Cross region as in different data centers ?
>>
>> - Mridul
>>
>> On Sun, Mar 15, 2015 at 8:08 PM, lonely Feb <lonely8658@gmail.com> wrote:
>> > Hi all, i meet up with a problem that torrent broadcast hang out in my
>> > spark cluster (1.2, standalone) , particularly serious when driver and
>> > executors are cross-region. when i read the code of broadcast i found
>> that
>> > a sync block read here:
>> >
>> >   def fetchBlockSync(host: String, port: Int, execId: String, blockId:
>> > String): ManagedBuffer = {
>> >     // A monitor for the thread to wait on.
>> >     val result = Promise[ManagedBuffer]()
>> >     fetchBlocks(host, port, execId, Array(blockId),
>> >       new BlockFetchingListener {
>> >         override def onBlockFetchFailure(blockId: String, exception:
>> > Throwable): Unit = {
>> >           result.failure(exception)
>> >         }
>> >         override def onBlockFetchSuccess(blockId: String, data:
>> > ManagedBuffer): Unit = {
>> >           val ret = ByteBuffer.allocate(data.size.toInt)
>> >           ret.put(data.nioByteBuffer())
>> >           ret.flip()
>> >           result.success(new NioManagedBuffer(ret))
>> >         }
>> >       })
>> >
>> >     Await.result(result.future, Duration.Inf)
>> >   }
>> >
>> > it seems that fetchBlockSync method does not have a timeout limit but
>> wait
>> > forever ? Anybody can show me how to control the timeout here?
>>
>
>

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