动态分区数太大的问题:[Fatal Error] Operator FS_2 (id=2): Number of dynamic partitions exceeded hive.exec.max.dynamic.partitions.pernode. hive> insert into table sogouq_test partition(query_time) select user_id,query_word,query_order,click_order,url,query_time…

spark 2.4 spark sql中执行 set hive.exec.max.dynamic.partitions=10000; 后再执行sql依然会报错: org.apache.hadoop.hive.ql.metadata.HiveException: Number of dynamic partitions created is 1001, which is more than 1000. To solve this try to set hive.exec.max.dynamic.p…

Changing Hive Dynamic Partition Limits Symptoms: Hive enforces limits on the number of dynamic partitions that it creates.  The default is 100 dynamic partitions per node, with a total (default) limit of 1000 dynamic partitions across all nodes. Howe…

当我们出现这种情况时 FAILED: SemanticException [Error 10096]: Dynamic partition strict mode requires at least one static partition column. To turn this off set hive.exec.dynamic.partition.mode=nonstrict 这时候我们需要改变一下设置 set hive.exec.dynamici.partition=true;set h…

ORA-00019: maximum number of session licenses exceededORA-00019: 超出最大会话许可数 Cause:       All licenses are in use.      所有许可都在使用中. Action:       Increase the value of the LICENSE MAX SESSIONS initialization parameter.      增加最大会话许可数的初始化参数值.…

hive.exec.parallel参数控制在同一个sql中的不同的job是否可以同时运行,默认为false.下面是对于该参数的测试过程: 测试sql:select r1.a    from (select t.a from sunwg_10 t join sunwg_10000000 s on t.a=s.b) r1 join (select s.b from sunwg_100000 t join sunwg_10 s on t.a=s.b) r2 on (r1.a=r2.b); Set h…

问题描述:在正式生产环境中,有的库建的process和session连接数目设置的较小,导致后期满了无法连接.因为正式库无法进行停库修改,只能释放连接,做个测试模拟 1. 修改现有最大会话与进程连接数 SQL> alter system set processes = 35 scope = spfile; System altered. SQL> alter system set sessions = 40 scope = spfile; System altered. 2.重启生效,加大连接…

一.描述 最近在批量上传文件时网关出现了异常,后面发现上传大文件也会出现文件超过256发生异常,异常信息如下: org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer : 262144 at org.springframework.core.io.buffer.LimitedDataBufferList.raiseLimitException(Limite…

转自:http://www.aahyhaa.com/archives/316 hive引入partition和bucket的概念,中文翻译分别为分区和桶(我觉的不是很合适,但是网上基本都是这么翻译,暂时用这个吧),这两个概念都是把数据划分成块,分区是粗粒度的划分桶是细粒度的划分,这样做为了可以让查询发生在小范围的数据上以提高效率. 首先介绍分区的概念,还是先来个例子看下如果创建分区表:[code lang=”sql”]create table logs_partition(ts bigint,l…

转自:http://blog.51cto.com/lee90/1788124 今天java开发在连接线上的oracle大量导数据,一会提示连接不上数据库了.我本地用sqldeveloper也连接不上. 登录到服务器,重启oracle,本地还是不能连接. 在xshell里面登录oracle # su - oracle # sqlplus / as sysdba    连接Oracle 提示要输入用户名和密码. 并报错ORA-00020: maximumnumber of processes (30…