在windows環境下hadoop或flink時，可能會出現如下異常：

2018-09-30 17:45:59,517 ERROR org.apache.hadoop.util.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:378)
	at org.apache.hadoop.util.Shell.getWinUtilsPath(Shell.java:393)
	at org.apache.hadoop.util.Shell.<clinit>(Shell.java:386)
	at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:79)
	at org.apache.hadoop.security.Groups.parseStaticMapping(Groups.java:116)
	at org.apache.hadoop.security.Groups.<init>(Groups.java:93)
	at org.apache.hadoop.security.Groups.<init>(Groups.java:73)
	at org.apache.hadoop.security.Groups.getUserToGroupsMappingService(Groups.java:293)
	at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:283)
	at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:260)
	at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:789)
	at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:774)
	at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:647)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.flink.runtime.util.EnvironmentInformation.getHadoopUser(EnvironmentInformation.java:96)
	at org.apache.flink.runtime.util.EnvironmentInformation.logEnvironmentInfo(EnvironmentInformation.java:285)
	at org.apache.flink.runtime.entrypoint.StandaloneSessionClusterEntrypoint.main(StandaloneSessionClusterEntrypoint.java:84)
 

原因是缺少hadoop使用的winutils.exe檔案,下載 Hadoop.zip ，解壓至某一目錄，並配置環境變數HADOOP_HOME為該目錄即可。如解壓至E盤下，winutils.exe在則D:\Hadoop\bin下，配置HODAOOP_HOME=E:\Hadoop