Zeppelin抛出java.lang.OutOfMemoryError:Java堆空间

Question

我试图使用Zeppelin与以下代码:

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")

这一直让我误以为:

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)

我已经设置了以下内容 zeppelin-env.sh

export ZEPPELIN_JAVA_OPTS="-Dhdp.version=2.3.0.0-2557 -Dspark.executor.memory=4g"

任何想法,我可能会失踪.我正在解析的文件my_data.txt大约是200MB

顺便说一下,如果重要的话,我正在使用Hortonworks Sandbox

编辑1 这是我的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

关心Kiran

Answer 1

您可以尝试增加 SPARK_SUBMIT_OPTIONS 中的内存吗conf/zeppelin-env.sh：

export SPARK_SUBMIT_OPTIONS="--driver-java-options -Xmx20g"

该线程可能会有所帮助 http://apache-zeppelin-users-incubating-mailing-list.75479.x6.nabble.com/Can-not-configure-driver-memory-size-td1513.html