标签:execution rom mys from ror thread ext nbsp ret
1.
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:2145)
增加driver内存, 原因是数据从各executor汇总到driver造成的。
2.
Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
能调大的内存,全部调大。
标签:execution rom mys from ror thread ext nbsp ret
原文地址:https://www.cnblogs.com/ruili07/p/10774634.html