6

我正在尝试将 Zeppelin 与以下代码一起使用:

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")

这不断向我抛出以下错误:

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)

我已经在zeppelin-env.sh

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

知道我可能缺少什么。我正在解析my_data.txt的文件大约 200MB

顺便说一句,如果这很重要,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

问候基兰

4

4 回答 4

4

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

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

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

于 2016-01-11T12:09:21.210 回答
0

增加以下zeppelin-env.shvar 的内存,对我有用。默认为 1/0.5GB,我将其增加到 10/5GB

ZEPPELIN_MEM": "-Xmx10024m -XX:MaxPermSize=5120m
于 2021-04-15T18:57:13.390 回答
0

我在尝试启动 Zeppelin 笔记本时遇到错误

INFO [2021-05-04 15:16:22,015] ({main} Folder.java[addNote]:185) - Add note 2G7CAFXX7 to folder /
INFO [2021-05-04 15:16:22,016] ({main} Notebook.java[<init>]:127) - Notebook indexing started...
WARN [2021-05-04 15:16:32,045] ({main} ContextHandler.java[log]:2355) - unavailable
MultiException stack 1 of 1
java.lang.OutOfMemoryError: Java heap space
        at org.apache.lucene.store.RAMFile.newBuffer(RAMFile.java:80)
        at org.apache.lucene.store.RAMFile.addBuffer(RAMFile.java:53)

为了解决这个问题,我调整了 zeppelin-env.sh 文件中的 ZEPPELIN_MEM 参数,如下所示,

export ZEPPELIN_MEM="-Xmx5024m -XX:MaxPermSize=5120m"

然后重启zeppelin

sudo systemctl stop zeppelin; sudo systemctl start zeppelin

结果

INFO [2021-05-04 18:51:02,939] ({main} Folder.java[addNote]:185) - Add note 2G7CAFXX7 to folder /
INFO [2021-05-04 18:51:02,940] ({main} Notebook.java[<init>]:127) - Notebook indexing started...
INFO [2021-05-04 18:51:05,793] ({main} LuceneSearch.java[addIndexDocs]:305) - Indexing 905 notebooks took 2853ms
INFO [2021-05-04 18:51:05,793] ({main} Notebook.java[<init>]:129) - Notebook indexing finished: 905 indexed in -2s
INFO [2021-05-04 18:51:05,795] ({main} Helium.java[loadConf]:103) - Add helium local registry /usr/lib/zeppelin/helium
INFO [2021-05-04 18:51:05,797] ({main} Helium.java[loadConf]:100) - Add helium
INFO [2021-05-04 18:51:06,631] ({main} Server.java[doStart]:407) - Started @131632ms
INFO [2021-05-04 18:51:06,631] ({main} ZeppelinServer.java[main]:249) - Done, zeppelin server started
于 2021-05-04T18:57:35.043 回答
-1

唯一对我有用的东西(使用 Spark 2)是添加到 conf/zeppelin-env.sh:

export SPARK_SUBMIT_OPTIONS="... --driver-memory 4g ..."

然后重新启动 Zeppelin 解释器(在 Zeppelin for Spark 2 中,单击右上角的设置按钮,然后单击解释器链接,向下滚动并单击 Spark 部分的重新启动按钮)。

于 2016-12-08T22:21:14.073 回答