一、问题背景 启动两个微服务，一个是Eureka server注册中心，另外一个是 Eureka client客户端 过了一段时间，打开注册中心网页时，界面上显示了红色粗体警告信息 即 EMERGENCY! EUREKA MAY BE INCORRECTLY CLAIMING INSTANCES ARE UP WHEN THEY...
kafka消息队列的方式 目录概述 小结：参考资料和推荐阅读 LD is tigger forever，CG are not brothers forever， throw the pot and shine forever. Modesty is not false, solid is not naive, treacherous but not deceitful, stay with good people, a...
如题，flink在使用StreamingFileSink是报错： java.lang.UnsupportedOperationException: Recoverable writers on Hadoop are only supported for HDFS and for Hadoop version 2.7 or newer ?? ?at org.apache.flink.runtime.fs.hdfs.HadoopRecoverableWriter....
PageHelper If you are using MyBatis, it is recommended to try this pagination plugin. This must be the MOST CONVENIENT pagination plugin ! 在springboot中使用PageHelper插件有两种较为相似的方式，一种是配置类，另外一种是配置application，本...
本地的SpringBoot项目平时起都没问题，想验证个功能点的时候突然起不来，报这个错误 Description: Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to determine...
今天在部署es集群的时候，发现它报了下面这样的一个错误： "Caused by: java.lang.IllegalArgumentException: unknown setting [discovery.send_hosts] please check that any required plugins are installed, or check the breaking changes documentatio...
每日一谚：Test to know you are correct. go中文网每日资讯--2022-04-08 一、Go语言中文网 Go 内存泄漏排查实战 Go是如何缓解供应链攻击的 二、脑子进煎鱼了 Go 之父：聊聊我眼中的 Go 语言和环境 三、网管叨bi叨 用 Go 学算法--归并排序 四、roseduan写字的地...
通过spark程序向parquet格式的表写数据报错ParquetEncodingException: empty fields are illegal, the field should be ommited completely instead 报错如下: org.apache.spark.SparkException: Task failed while writing rows. at org.apache.spark.sql.hive.SparkHiveDy...
之前一个spark写ck的任务，某天开始频繁报错如下： Too many parts (300). Merges are processing significantly slower than inserts (version 21.6.5.37 (official build))。 之前在网上查了查该问题，了解到：当数据插入到clickhouse时，会...
考试科目：1Z0-082 考试题量：90 通过分数：60% 官方考试说明：https://education.oracle.com/产品目录-ouexam-pexam_1z0-082/pexam_1Z0-082 1.Which two statements are true about space-saving features in an Oracle Database? A.An index crea...
今天使用 git pull和git push 命令，分别报错： You are not currently on a branch, so I cannot use any
'branch.<branchname>.merge' in your configuration file.
Please specify which remote branch you want to use on the command
line a...
背景 项目基本信息 Spring Cloud：Hoxton.SR10 Spring Boot：2.3.9.RELEASE 之前升级过版本：Greenwich.SR2，2.1.6.RELEASE 报错信息 项目里新增了一个Kafka的Topic，结果启动的时候报错： org.springframework.cloud.stream.binding.BindingService [330] -| Failed to cre...
1、Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? A)Space is only reclaimed when there is space pressure in the Fast Recovery Area(FRA) B)Space is always reclaimed automatically when the retent...
