Eclipse操作HDFS时常见错误

在Windows环境下，Eclipse操作hdfs时，出现

 ERROR Shell: Failed to locate the winutils binary in the hadoop binary path

java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.

    at org.apache.hadoop.util.Shell.getQualifiedBinPath(Shell.java:356)

    at org.apache.hadoop.util.Shell.getWinUtilsPath(Shell.java:371)

    at org.apache.hadoop.util.Shell.<clinit>(Shell.java:364)

    at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:80)

    at org.apache.hadoop.security.SecurityUtil.getAuthenticationMethod(SecurityUtil.java:611)

    at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:272)

    at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:260)

    at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:790)

    at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:760)

    at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:633)

    at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2001)

    at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2001)

    at scala.Option.getOrElse(Option.scala:120)

    at org.apache.spark.util.Utils$.getCurrentUserName(Utils.scala:2001)

    at org.apache.spark.SecurityManager.<init>(SecurityManager.scala:207)

    at org.apache.spark.SparkEnv$.create(SparkEnv.scala:218)

    at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:163)

    at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:269)

    at org.apache.spark.SparkContext.<init>(SparkContext.scala:272)

    at org.apache.spark.SparkContext.<init>(SparkContext.scala:154)

    at SparkFromHbase$.main(SparkFromHbase.scala:15)

    at SparkFromHbase.main(SparkFromHbase.scala)

    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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)

解决方法：先查看你的hadoop解压路径下hadoop/bin有没有文件winutils.exe，如果存在，则在程序里加上System.setProperty("hadoop.home.dir",hadoop解压路径);

如果不存在文件winutils.exe，则需要下载该文件，然后放入hadoop解压后的bin下。

下载路径：http://download.youkuaiyun.com/detail/luoyepiaoxin/8860033