spark 程序 windows 运行报错
1
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 org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2422)
at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2422)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.util.Utils$.getCurrentUserName(Utils.scala:2422)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:293)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2520)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:935)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:926)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:926)
at com.sys.spring_spark.JavaLogQuery.main(JavaLogQuery.java:104)
环境变量导致 新建环境变量 HADOOP_HOME
参考 https://blog.csdn.net/baidu_19473529/article/details/54693523
2错误 运行模式错误
org.apache.spark.SparkException: A master URL must be set in your configuration
at org.apache.spark.SparkContext.<init>(SparkContext.scala:368)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2520)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:935)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:926)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:926)
at com.sys.spring_spark.JavaLogQuery.main(JavaLogQuery.java:104)
解决 参考
https://blog.csdn.net/shenlanzifa/article/details/42679577
从提示中可以看出找不到程序运行的master，此时需要配置环境变量。
传递给spark的master url可以有如下几种：
local 本地单线程
local[K] 本地多线程（指定K个内核）
local[*] 本地多线程（指定所有可用内核）
spark://HOST:PORT 连接到指定的 Spark standalone cluster master，需要指定端口。
mesos://HOST:PORT 连接到指定的 Mesos 集群，需要指定端口。
yarn-client客户端模式 连接到 YARN 集群。需要配置 HADOOP_CONF_DIR。
yarn-cluster集群模式 连接到 YARN 集群。需要配置 HADOOP_CONF_DIR。
点击edit configuration，在左侧点击该项目。在右侧VM options中输入“-Dspark.master=local”，指示本程序本地单线程运行，再次运行即可。
