org.apache.poi.poifs.filesystem.OfficeXmlFileException: The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg…

上传excel解析存到数据库时报: org.apache.poi.poifs.filesystem.OfficeXmlFileException: The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to proc…

错误: 14/04/29 02:45:07 INFO mapreduce.Job: Job job_1398704073313_0021 failed with state FAILED due to: Application application_1398704073313_0021 failed 2 times due to Error launching appattempt_1398704073313_0021_000002. Got exception:     org.apache…

Spark is a compelling multi-purpose platform for use cases that span investigative, as well as operational, analytics. Data science is a broad church. I am a data scientist — or so I’ve been told — but what I do is actually quite different from what…

原因,最近开发的kafka消息接收,突然报如下错: org.apache.kafka.common.errors.SerializationException: Error deserializing... Caused by: org.apache.kafka.common.errors.SerializationException: Size of data received by IntegerDeserializer is not 4 原因如下,我的kafka序列化配置中配置的序列化类如…

代码说简单也简单,说复杂那还真是寸步难行. 之前好好的excel导出功能,本地启动调试的时候突然就不行了,一直报上面的错. 一直在本地折腾了半天,去测试环境上看,又是好的,可以正常导出excel. 搜索引擎查了下才发现问题所在: 下面是项目结构: client<--service<---dao<--common-utils 在service层中,pom文件如下: <dependency> <groupId>org.apache.poi</groupId>…

组件:cdh5.14.0 spark是自己编译的spark2.1.0-cdh5.14.0 第一步:确认spark-defaults.conf中添加了如下配置: spark.shuffle.service.enabled true //启用External shuffle Service服务 spark.shuffle.service.port //Shuffle Service服务端口,必须和yarn-site中的一致 spark.dynamicAllocation.enabled true /…

在yarn-site.xml 配置文件中增加: <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> 重启就ok了 这个问题其实是由于 yarn.nodemanager.aux-services 配置错误或者没有配置,其实,如果没有配置这个参数应该会有默认值…

这个是Flink 1.11.1  使用yarn-session 出现的错误:原因是在Flink1.11 之后不再提供flink-shaded-hadoop-*” jars 需要在yarn-session.sh 文件中添加 或者在环境变量中添加 export HADOOP_CLASSPATH=`hadoop classpath` 所以要仔细阅读官网信息,基本上好多东西根据官网来,都能解决…

package mail; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStream; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util…