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https://issues.apache.org/jira/browse/SPARK-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14027808#comment-14027808
]
Mridul Muralidharan commented on SPARK-2018:
--------------------------------------------
Ah ! This is an interesting bug.
Default spark uses java serialization ... so should not be an issue : but yet
you are facing it ! (I am assuming you have not customized serialization).
Is it possible for you to dump data written and read at both ends ? The env
vars and jvm details ?
Actually, spark does not do anything fancy for default serialization : so a
simple example code without spark in picture could also be tried (write to file
on master node, and read from the file in slave node - and see if it works)
> Big-Endian (IBM Power7) Spark Serialization issue
> --------------------------------------------------
>
> Key: SPARK-2018
> URL: https://issues.apache.org/jira/browse/SPARK-2018
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.0.0
> Environment: hardware : IBM Power7
> OS:Linux version 2.6.32-358.el6.ppc64
> (mockbu...@ppc-017.build.eng.bos.redhat.com) (gcc version 4.4.7 20120313 (Red
> Hat 4.4.7-3) (GCC) ) #1 SMP Tue Jan 29 11:43:27 EST 2013
> JDK: Java(TM) SE Runtime Environment (build pxp6470sr5-20130619_01(SR5))
> IBM J9 VM (build 2.6, JRE 1.7.0 Linux ppc64-64 Compressed References
> 20130617_152572 (JIT enabled, AOT enabled)
> Hadoop:Hadoop-0.2.3-CDH5.0
> Spark:Spark-1.0.0 or Spark-0.9.1
> spark-env.sh:
> export JAVA_HOME=/opt/ibm/java-ppc64-70/
> export SPARK_MASTER_IP=9.114.34.69
> export SPARK_WORKER_MEMORY=10000m
> export SPARK_CLASSPATH=/home/test1/spark-1.0.0-bin-hadoop2/lib
> export STANDALONE_SPARK_MASTER_HOST=9.114.34.69
> #export SPARK_JAVA_OPTS=' -Xdebug
> -Xrunjdwp:transport=dt_socket,address=99999,server=y,suspend=n '
> Reporter: Yanjie Gao
>
> We have an application run on Spark on Power7 System .
> But we meet an important issue about serialization.
> The example HdfsWordCount can meet the problem.
> ./bin/run-example org.apache.spark.examples.streaming.HdfsWordCount
> localdir
> We used Power7 (Big-Endian arch) and Redhat 6.4.
> Big-Endian is the main cause since the example ran successfully in another
> Power-based Little Endian setup.
> here is the exception stack and log:
> Spark Executor Command: "/opt/ibm/java-ppc64-70//bin/java" "-cp"
> "/home/test1/spark-1.0.0-bin-hadoop2/lib::/home/test1/src/spark-1.0.0-bin-hadoop2/conf:/home/test1/src/spark-1.0.0-bin-hadoop2/lib/spark-assembly-1.0.0-hadoop2.2.0.jar:/home/test1/src/spark-1.0.0-bin-hadoop2/lib/datanucleus-rdbms-3.2.1.jar:/home/test1/src/spark-1.0.0-bin-hadoop2/lib/datanucleus-api-jdo-3.2.1.jar:/home/test1/src/spark-1.0.0-bin-hadoop2/lib/datanucleus-core-3.2.2.jar:/home/test1/src/hadoop-2.3.0-cdh5.0.0/etc/hadoop/:/home/test1/src/hadoop-2.3.0-cdh5.0.0/etc/hadoop/"
> "-XX:MaxPermSize=128m" "-Xdebug"
> "-Xrunjdwp:transport=dt_socket,address=99999,server=y,suspend=n" "-Xms512M"
> "-Xmx512M" "org.apache.spark.executor.CoarseGrainedExecutorBackend"
> "akka.tcp://spark@9.186.105.141:60253/user/CoarseGrainedScheduler" "2"
> "p7hvs7br16" "4" "akka.tcp://sparkWorker@p7hvs7br16:59240/user/Worker"
> "app-20140604023054-0000"
> ========================================
> 14/06/04 02:31:20 WARN util.NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> 14/06/04 02:31:21 INFO spark.SecurityManager: Changing view acls to:
> test1,yifeng
> 14/06/04 02:31:21 INFO spark.SecurityManager: SecurityManager: authentication
> disabled; ui acls disabled; users with view permissions: Set(test1, yifeng)
> 14/06/04 02:31:22 INFO slf4j.Slf4jLogger: Slf4jLogger started
> 14/06/04 02:31:22 INFO Remoting: Starting remoting
> 14/06/04 02:31:22 INFO Remoting: Remoting started; listening on addresses
> :[akka.tcp://sparkExecutor@p7hvs7br16:39658]
> 14/06/04 02:31:22 INFO Remoting: Remoting now listens on addresses:
> [akka.tcp://sparkExecutor@p7hvs7br16:39658]
> 14/06/04 02:31:22 INFO executor.CoarseGrainedExecutorBackend: Connecting to
> driver: akka.tcp://spark@9.186.105.141:60253/user/CoarseGrainedScheduler
> 14/06/04 02:31:22 INFO worker.WorkerWatcher: Connecting to worker
> akka.tcp://sparkWorker@p7hvs7br16:59240/user/Worker
> 14/06/04 02:31:23 INFO worker.WorkerWatcher: Successfully connected to
> akka.tcp://sparkWorker@p7hvs7br16:59240/user/Worker
> 14/06/04 02:31:24 INFO executor.CoarseGrainedExecutorBackend: Successfully
> registered with driver
> 14/06/04 02:31:24 INFO spark.SecurityManager: Changing view acls to:
> test1,yifeng
> 14/06/04 02:31:24 INFO spark.SecurityManager: SecurityManager: authentication
> disabled; ui acls disabled; users with view permissions: Set(test1, yifeng)
> 14/06/04 02:31:24 INFO slf4j.Slf4jLogger: Slf4jLogger started
> 14/06/04 02:31:24 INFO Remoting: Starting remoting
> 14/06/04 02:31:24 INFO Remoting: Remoting started; listening on addresses
> :[akka.tcp://spark@p7hvs7br16:58990]
> 14/06/04 02:31:24 INFO Remoting: Remoting now listens on addresses:
> [akka.tcp://spark@p7hvs7br16:58990]
> 14/06/04 02:31:24 INFO spark.SparkEnv: Connecting to MapOutputTracker:
> akka.tcp://spark@9.186.105.141:60253/user/MapOutputTracker
> 14/06/04 02:31:25 INFO spark.SparkEnv: Connecting to BlockManagerMaster:
> akka.tcp://spark@9.186.105.141:60253/user/BlockManagerMaster
> 14/06/04 02:31:25 INFO storage.DiskBlockManager: Created local directory at
> /tmp/spark-local-20140604023125-3f61
> 14/06/04 02:31:25 INFO storage.MemoryStore: MemoryStore started with capacity
> 307.2 MB.
> 14/06/04 02:31:25 INFO network.ConnectionManager: Bound socket to port 39041
> with id = ConnectionManagerId(p7hvs7br16,39041)
> 14/06/04 02:31:25 INFO storage.BlockManagerMaster: Trying to register
> BlockManager
> 14/06/04 02:31:25 INFO storage.BlockManagerMaster: Registered BlockManager
> 14/06/04 02:31:25 INFO spark.HttpFileServer: HTTP File server directory is
> /tmp/spark-7bce4e43-2833-4666-93af-bd97c327497b
> 14/06/04 02:31:25 INFO spark.HttpServer: Starting HTTP Server
> 14/06/04 02:31:25 INFO server.Server: jetty-8.y.z-SNAPSHOT
> 14/06/04 02:31:26 INFO server.AbstractConnector: Started
> SocketConnector@0.0.0.0:39958
> 14/06/04 02:31:26 INFO executor.CoarseGrainedExecutorBackend: Got assigned
> task 2
> 14/06/04 02:31:26 INFO executor.Executor: Running task ID 2
> 14/06/04 02:31:26 ERROR executor.Executor: Exception in task ID 2
> java.io.InvalidClassException: scala.reflect.ClassTag$$anon$1; local class
> incompatible: stream classdesc serialVersionUID = -8102093212602380348, local
> class serialVersionUID = -4937928798201944954
> at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:678)
> at
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1678)
> at
> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1573)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1827)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1078)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1949)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1078)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1949)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1078)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1949)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1078)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1949)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at java.lang.reflect.Method.invoke(Method.java:607)
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1078)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1949)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2047)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1971)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1854)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at
> org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:63)
> at
> org.apache.spark.scheduler.ResultTask$.deserializeInfo(ResultTask.scala:61)
> at
> org.apache.spark.scheduler.ResultTask.readExternal(ResultTask.scala:141)
> at
> java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1893)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1852)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1406)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:409)
> at
> org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:63)
> at
> org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:85)
> at
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:169)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:781)
> 14/06/04 02:31:26 ERROR executor.CoarseGrainedExecutorBackend: Driver
> Disassociated [akka.tcp://sparkExecutor@p7hvs7br16:39658] ->
> [akka.tcp://spark@9.186.105.141:60253] disassociated! Shutting down.
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