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From Siva <sbhavan...@gmail.com>
Subject Re: saveAsTextFile is not writing to local fs
Date Tue, 02 Feb 2016 02:00:18 GMT
Hi Mohamed,

Thanks for your response. Data is available in worker nodes. But looking
for something to write directly to local fs. Seems like it is not an option.

Thanks,
Sivakumar Bhavanari.

On Mon, Feb 1, 2016 at 5:45 PM, Mohammed Guller <mohammed@glassbeam.com>
wrote:

> You should not be saving an RDD to local FS if Spark is running on a real
> cluster. Essentially, each Spark worker will save the partitions that it
> processes locally.
>
>
>
> Check the directories on the worker nodes and you should find pieces of
> your file on each node.
>
>
>
> Mohammed
>
> Author: Big Data Analytics with Spark
> <http://www.amazon.com/Big-Data-Analytics-Spark-Practitioners/dp/1484209656/>
>
>
>
> *From:* Siva [mailto:sbhavanari@gmail.com]
> *Sent:* Friday, January 29, 2016 5:40 PM
> *To:* Mohammed Guller
> *Cc:* spark users
> *Subject:* Re: saveAsTextFile is not writing to local fs
>
>
>
> Hi Mohammed,
>
>
>
> Thanks for your quick response. I m submitting spark job to Yarn in
> "yarn-client" mode on a 6 node cluster. I ran the job by turning on DEBUG
> mode. I see the below exception, but this exception occurred after
> saveAsTextfile function is finished.
>
>
>
> 16/01/29 20:26:57 DEBUG HttpParser:
>
> java.net.SocketException: Socket closed
>
>         at java.net.SocketInputStream.read(SocketInputStream.java:190)
>
>         at java.net.SocketInputStream.read(SocketInputStream.java:122)
>
>         at
> org.spark-project.jetty.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:391)
>
>         at
> org.spark-project.jetty.io.bio.StreamEndPoint.fill(StreamEndPoint.java:141)
>
>         at
> org.spark-project.jetty.server.bio.SocketConnector$ConnectorEndPoint.fill(SocketConnector.java:227)
>
>         at
> org.spark-project.jetty.http.HttpParser.fill(HttpParser.java:1044)
>
>         at
> org.spark-project.jetty.http.HttpParser.parseNext(HttpParser.java:280)
>
>         at
> org.spark-project.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
>
>         at
> org.spark-project.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
>
>         at
> org.spark-project.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
>
>         at
> org.spark-project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
>
>         at
> org.spark-project.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
>
>         at java.lang.Thread.run(Thread.java:745)
>
> 16/01/29 20:26:57 DEBUG HttpParser:
>
> java.net.SocketException: Socket closed
>
>         at java.net.SocketInputStream.read(SocketInputStream.java:190)
>
>         at java.net.SocketInputStream.read(SocketInputStream.java:122)
>
>         at
> org.spark-project.jetty.io.ByteArrayBuffer.readFrom(ByteArrayBuffer.java:391)
>
>         at
> org.spark-project.jetty.io.bio.StreamEndPoint.fill(StreamEndPoint.java:141)
>
>         at
> org.spark-project.jetty.server.bio.SocketConnector$ConnectorEndPoint.fill(SocketConnector.java:227)
>
>         at
> org.spark-project.jetty.http.HttpParser.fill(HttpParser.java:1044)
>
>         at
> org.spark-project.jetty.http.HttpParser.parseNext(HttpParser.java:280)
>
>         at
> org.spark-project.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
>
>         at
> org.spark-project.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
>
>         at
> org.spark-project.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
>
>         at
> org.spark-project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
>
>         at
> org.spark-project.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
>
>         at java.lang.Thread.run(Thread.java:745)
>
> 16/01/29 20:26:57 DEBUG HttpParser: HttpParser{s=-14,l=0,c=-3}
>
> org.spark-project.jetty.io.EofException
>
>
>
> Do you think this one this causing this?
>
>
> Thanks,
>
> Sivakumar Bhavanari.
>
>
>
> On Fri, Jan 29, 2016 at 3:55 PM, Mohammed Guller <mohammed@glassbeam.com>
> wrote:
>
> Is it a multi-node cluster or you running Spark on a single machine?
>
>
>
> You can change Spark’s logging level to INFO or DEBUG to see what is going
> on.
>
>
>
> Mohammed
>
> Author: Big Data Analytics with Spark
> <http://www.amazon.com/Big-Data-Analytics-Spark-Practitioners/dp/1484209656/>
>
>
>
> *From:* Siva [mailto:sbhavanari@gmail.com]
> *Sent:* Friday, January 29, 2016 3:38 PM
> *To:* spark users
> *Subject:* saveAsTextFile is not writing to local fs
>
>
>
> Hi Everyone,
>
>
>
> We are using spark 1.4.1 and we have a requirement of writing data local
> fs instead of hdfs.
>
>
>
> When trying to save rdd to local fs with saveAsTextFile, it is just
> writing _SUCCESS file in the folder with no part- files and also no error
> or warning messages on console.
>
>
>
> Is there any place to look at to fix this problem?
>
>
> Thanks,
>
> Sivakumar Bhavanari.
>
>
>

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