I am trying to use Zeppelin with the following code:
val dataText = sc.parallelize(IOUtils.toString(new URL("http://XXX.XX.XXX.121:8090/my_data.txt"),Charset.forName("utf8")).split("\n"))
case class Data(id: string, time: long, value1: Double, value2: int, mode: int)
val dat = dataText .map(s => s.split("\t")).filter(s => s(0) != "Header:").map(
s => Data(s(0),
s(1).toLong,
s(2).toDouble,
s(3).toInt,
s(4).toInt
)
).toDF()
dat.registerTempTable("mydatatable")
this keeps throwing me following error :
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2367)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:535)
at java.lang.StringBuilder.append(StringBuilder.java:204)
at org.apache.commons.io.output.StringBuilderWriter.write(StringBuilderWriter.java:138)
at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2002)
at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1980)
at org.apache.commons.io.IOUtils.copy(IOUtils.java:1957)
at org.apache.commons.io.IOUtils.copy(IOUtils.java:1907)
at org.apache.commons.io.IOUtils.toString(IOUtils.java:778)
at org.apache.commons.io.IOUtils.toString(IOUtils.java:896)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:38)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:43)
at $iwC$$iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:45)
at $iwC$$iwC$$iwC$$iwC$$iwC.<init>(<console>:47)
at $iwC$$iwC$$iwC$$iwC.<init>(<console>:49)
at $iwC$$iwC$$iwC.<init>(<console>:51)
at $iwC$$iwC.<init>(<console>:53)
at $iwC.<init>(<console>:55)
at <init>(<console>:57)
at .<init>(<console>:61)
at .<clinit>(<console>)
at .<init>(<console>:7)
at .<clinit>(<console>)
at $print(<console>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:1065)
at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1338)
I have already set the following in the zeppelin-env.sh
export ZEPPELIN_JAVA_OPTS="-Dhdp.version=2.3.0.0-2557 -Dspark.executor.memory=4g"
any idea what I may be missing. File I am parsing my_data.txt
is about 200MB
BTW I am using the Hortonworks Sandbox if that matters
EDIT 1
Here is my zeppelin-env.sh
export HADOOP_CONF_DIR=/etc/hadoop/conf
export ZEPPELIN_PORT=9995
export ZEPPELIN_JAVA_OPTS="-Dhdp.version=2.3.0.0-2557 -Dspark.executor.memory=4g"
export SPARK_SUBMIT_OPTIONS="--driver-java-options -Xmx4g"
export ZEPPELIN_INT_MEM="-Xmx4g"
export SPARK_HOME=/usr/hdp/2.3.0.0-2557/spark
Regards Kiran
Can you try increasing the memory in SPARK_SUBMIT_OPTIONS in conf/zeppelin-env.sh
:
export SPARK_SUBMIT_OPTIONS="--driver-java-options -Xmx20g"
This thread may help http://apache-zeppelin-users-incubating-mailing-list.75479.x6.nabble.com/Can-not-configure-driver-memory-size-td1513.html