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...
---------------数据导入导出------------------------------ 创建表: CREATE TABLE IF NOT EXISTS userses(
name string,
sex string
)
row format delimited fields terminated by'\t'; CREATE TABLE IF NOT EXISTS user_tmp(
name string,
sex string
)
p...
在开始提到Redis分布式锁之前,先说一下redis中的两个命令。 SETNX key value setnx 是SET if Not eXists(如果不存在,则 SET)的简写。 用法如图,如果不存在set成功返回int的1,这个key存在了返回0。 SETEX key seconds value 上面这个命令的含义是...
一波三折 目录 EvalSha is not supported in cluster environment No way to dispatch this command to Redis Cluster because keys have different slots Jedis does not support password protected Redis Cluster configurations! 背景:最近项目新引入redis...
成功解决:Driver class ‘net.sourceforge.jtds.jdbc.Driver’ could not be found, make sure the ‘MS SQL Server’ driver (jar file) is installed. 文章目录 报错问题问题解答解决办法 报错问题 错误连接数据库 : org.pentaho.di.core.exception.KettleDatabase...
问题描述 问题描述:Flink job提交到集群上跑,提交成功了,但是每次都是等很久之后就失败了,一直报:Could not allocate the required slot within slot request timeout. Please make sure that the cluster has enough resources. 此外...
问题描述: Win10系统更新后,启动项目,显示拒绝连接。之后打开pgAdmin登录操作,但失败了!并显示错误信息。 could not connect to server: Connection refused (0x0000274D/10061) Is the server... 原因分析: 本以为是pg_hba.conf...
问题 今天修改pg的端口号port改成54328后重启完数据库的时候直接psql进库的时候进不去 [postgres@iZ8vbifqgkwljcq9ccpkg7Z data]$ psql psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Uni...