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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/08/04 07:17:00 UTC
[jira] [Commented] (SPARK-21626) The short-circuit local reads
feature cannot be used because libhadoop cannot be loaded.
[ https://issues.apache.org/jira/browse/SPARK-21626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114035#comment-16114035 ]
Sean Owen commented on SPARK-21626:
-----------------------------------
This has nothing to do with Spark itself.
> The short-circuit local reads feature cannot be used because libhadoop cannot be loaded.
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-21626
> URL: https://issues.apache.org/jira/browse/SPARK-21626
> Project: Spark
> Issue Type: Bug
> Components: Spark Shell
> Affects Versions: 2.2.0
> Reporter: Gu Chao
>
> After starting spark-shell, It outputs:
> {code:none}
> Setting default log level to "WARN".
> To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
> 17/08/04 11:24:41 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
> 17/08/04 11:24:44 WARN DomainSocketFactory: The short-circuit local reads feature cannot be used because libhadoop cannot be loaded.
> 17/08/04 11:24:48 WARN General: Plugin (Bundle) "org.datanucleus" is already registered. Ensure you dont have multiple JAR versions of the same plugin in the classpath. The URL "file:/opt/spark/jars/datanucleus-core-3.2.10.jar" is already registered, and you are trying to register an identical plugin located at URL "file:/opt/spark-2.2.0-bin-hadoop2.6/jars/datanucleus-core-3.2.10.jar."
> 17/08/04 11:24:48 WARN General: Plugin (Bundle) "org.datanucleus.api.jdo" is already registered. Ensure you dont have multiple JAR versions of the same plugin in the classpath. The URL "file:/opt/spark/jars/datanucleus-api-jdo-3.2.6.jar" is already registered, and you are trying to register an identical plugin located at URL "file:/opt/spark-2.2.0-bin-hadoop2.6/jars/datanucleus-api-jdo-3.2.6.jar."
> 17/08/04 11:24:48 WARN General: Plugin (Bundle) "org.datanucleus.store.rdbms" is already registered. Ensure you dont have multiple JAR versions of the same plugin in the classpath. The URL "file:/opt/spark/jars/datanucleus-rdbms-3.2.9.jar" is already registered, and you are trying to register an identical plugin located at URL "file:/opt/spark-2.2.0-bin-hadoop2.6/jars/datanucleus-rdbms-3.2.9.jar."
> 17/08/04 11:24:51 WARN ObjectStore: Failed to get database global_temp, returning NoSuchObjectException
> Spark context Web UI available at http://192.168.50.11:4040
> Spark context available as 'sc' (master = spark://hadoop:7077, app id = app-20170804112442-0001).
> Spark session available as 'spark'.
> {code}
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