http://anthon-lx.iteye.com/blog/811460完整的错误信息如下:java.sql.SQLException:
Listener refused the connection with the following error:ORA-12505,
TNS:listene...
分类:
数据库 时间:
2014-07-22 23:09:35
阅读次数:
430
当hive在执行大数据量的统计查询语句时,经常会出现下面OOM错误,具体错误提示如下:
Possible error: Out of memory due to hash maps used in map-side aggregation.
Solution: Currently hive.map.aggr.hash.percentmemory is set to 0.5. Try set...
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其他好文 时间:
2014-05-09 21:08:27
阅读次数:
366
hive 中的union all是不能在sql语句的第一层使用的,否则会报Top level
UNION is not supported currently 错误;例如如下的方式:select id,name from user where type
= 1union allselect id,n...
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其他好文 时间:
2014-05-08 07:17:42
阅读次数:
420
The Little Elephant from the Zoo of Lviv currently is on the military mission. There are N enemy buildings placed in a row and numbered from left to right strating from 0. Each building i (except the ...
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其他好文 时间:
2014-05-07 11:49:37
阅读次数:
390
2.解析查看java.lang.System的源代码,我们可以找到System.exit(status)这个方法的说明,代码如下: /** *
Terminates the currently running Java Virtual Machine. The * argument...
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其他好文 时间:
2014-05-06 11:50:01
阅读次数:
283
强制关掉yum进程:#rm-f/var/run/yum.pid然后就可以使用yum了。
分类:
移动开发 时间:
2014-05-02 04:18:15
阅读次数:
371