从 org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus 到番石榴的 StopWatch 的 IllegalAccessError [英] IllegalAccessError to guava's StopWatch from org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus
问题描述
我正在尝试运行小型 spark 应用程序并收到以下异常:
I'm trying to run small spark application and am getting the following exception:
Exception in thread "main" java.lang.IllegalAccessError: tried to access method com.google.common.base.Stopwatch.<init>()V from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:262)
at org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat.getSplits(CombineFileInputFormat.java:217)
at org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:95)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:217)
at org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:32)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:219)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:217)
at scala.Option.getOrElse(Option.scala:120)
相关的 gradle 依赖部分:
the relevant gradle dependencies section:
compile('org.apache.spark:spark-core_2.10:1.3.1')
compile('org.apache.hadoop:hadoop-mapreduce-client-core:2.6.2') {force = true}
compile('org.apache.hadoop:hadoop-mapreduce-client-app:2.6.2') {force = true}
compile('org.apache.hadoop:hadoop-mapreduce-client-shuffle:2.6.2') {force = true}
compile('com.google.guava:guava:19.0') { force = true }
推荐答案
hadoop:hadoop-mapreduce-client-core
的2.6.2
版本无法使用连同 guava
的新版本(我试过 17.0
- 19.0
)自从 guava
的 StopWatch
构造函数无法访问(导致上述IllegalAccessError
)
version 2.6.2
of hadoop:hadoop-mapreduce-client-core
can't be used together with guava
's new versions (I tried 17.0
- 19.0
) since guava
's StopWatch
constructor can't be accessed (causing above IllegalAccessError
)
使用 hadoop-mapreduce-client-core
的最新版本 - 2.7.2
(其中他们不使用 guava
's StopWatch
在上述方法中,而不是他们使用 org.apache.hadoop.util.StopWatch
) 解决了这个问题,需要两个额外的依赖项:
using hadoop-mapreduce-client-core
's latest version - 2.7.2
(in which they don't use guava
's StopWatch
in the above method, rather they use org.apache.hadoop.util.StopWatch
) solved the problem, with two additional dependencies that were required:
compile('org.apache.hadoop:hadoop-mapreduce-client-core:2.7.2') {force = true}
compile('org.apache.hadoop:hadoop-common:2.7.2') {force = true} // required for org.apache.hadoop.util.StopWatch
compile('commons-io:commons-io:2.4') {force = true} // required for org.apache.commons.io.Charsets that is used internally
注意:有两个 org.apache.commons.io
包:commons-io:commons-io(我们这里),和org.apache.commons:commons-io(旧版本,2007 年).确保包含正确的.
note:
there are two org.apache.commons.io
packages:
commons-io:commons-io (ours here), and
org.apache.commons:commons-io (old one, 2007). make sure to include the correct one.
这篇关于从 org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus 到番石榴的 StopWatch 的 IllegalAccessError的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!