问题： 在Chrome中的控制台输出错误的页面如下： 错误信息： Access to XMLHttpRequest at 'file:///D:/xxxx/xxx.json' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol sc...
1. 消息大小限制 在版本3.7中的源码，我们可以看到最大消息大小为2GiB。 274 %% Trying to send a term across a cluster larger than 2^31 bytes will 275 %% cause the VM to exit with "Absurdly large distribution output data 276 %% buffer". So we li...
文章目录 POJO TO JSONJSON TO POJO POJO TO JSON 下载POJO to Json插件 找到目录File->Settings->Plugins 点击Installed下载 勾选上 一般插件安装之后重启IDEA即可生效 找到我们要转换的实体类，鼠标右击类名，选择POJO To Json 然后就去我们想要的地方直...
Unable to read HiveServer2 configs from ZooKeeper 问题描述 在HDP集群开启kerberos后，在连接Hive时报错： Unable to read HiveServer2 configs from ZooKeeper 产生原因 原因可能很多，说不完，道不尽。 但是，如果zookeeper是正常启动的...
执行hive初始化（schematool -dbType mysql -initSchema ）时一直报错： org.apache.hadoop.hive.metastore.HiveMetaException: Failed to get schema version. Underlying cause: java.sql.SQLException : Access denied for user 'root'@&#...
springcloud项目里，启动时报了下面的错 *************************** APPLICATION FAILED TO START *************************** Description: Failed to bind properties under 'spring.datasource.type' to java.lang.Class<javax.sql.DataSource>:...
Spark Error while running command to get file permissions Error while running command to get file permissions : 2 java.io.IOException: (null) entry in command string: null ls -F C:\Users\ue\IdeaProjects\spark-learn\data 解决方法： 在C:\Program File...
本文章向大家介绍Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient报错，问题排查，主要包括Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient报错，问题排查使用实例、应用技...
已解决ProcfsMetricsGetter: Exception when trying to compute pagesize, as a result reporting of ProcessTree metrics is stopped 已解决ProcfsMetricsGetter问题！ 按照流程安装了JDP、scala、hadoop和spark后，运行spark-shell。出现以下情况。 C:\Users\...
如何将RDD [Row]转换为RDD [String](How to convert RDD[Row] to RDD[String]) 我有一个名为source的DataFrame，一个来自mysql的表 val source = sqlContext.read.jdbc(jdbcUrl, "source", connectionProperties) 我已将它转换为rdd val sourceRdd =...
1.hive conf/hive-log4j.properties # Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF...
Hadoop上传文件报错： operation.java.net.NoRouteToHostException: 没有到主机的路由 报错：put: File /input.COPYING could only be replicated to 0 nodes instead of minReplication (=1). There are 2 datanode(s) running and 2 node(s) are excluded...
背景 作业可能会出现以下报错 ERROR org.apache.hadoop.hdfs.KeyProviderCache - Could not find uri with key [dfs.encryption.key.provider.uri] to create a keyProvider !! 这个报错是hdfs客户端的一个bug，但并不影响作业正常运行，且在2.8版本之后已经修复...
描述：hadoop-3.1.0启动hadoop集群时还有可能可能会报如下错误 [root@localhost sbin]# start-all.sh
Starting namenodes on [hadoop]
ERROR: Attempting to operate on hdfs namenode as root
ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting oper...
![spark将rdd转为string_如何将RDD [Row]转换为RDD [String](How to convert RDD[Row] to RDD[Str](/upload/article/20240209/04343565c53adb4a344fbxc1f.png "spark将rdd转为string_如何将RDD [Row]转换为RDD [String](How to convert RDD[Row] to RDD[Str")
![Could not find uri with key [dfs.encryption.key.provider.uri] to create a keyPro](/upload/article/20240209/04343565c53adb697f3yonvoj.png "Could not find uri with key [dfs.encryption.key.provider.uri] to create a keyPro")
