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分类 大数据 下的文章

25/6
2018

JD-GUI提示This application requires Java Runtime Environment 1.7的解决办法

问题原因是使用了绿色版本的java;只是设置JAVA_HOME和添加PATH,jd-gui是不认的,读取的注册表;
解决方法:

  1. 从oracle下载安装java;
  2. 修复注册表;

修复注册表如下(将“D:\work\jre1.7.0”替换为自己的路径):


Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft]

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment]
"CurrentVersion"="1.7"
"Java7FamilyVersion"="1.7.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.7]
"JavaHome"="D:/work/jre1.7.0"
"MicroVersion"="0"
"RuntimeLib"="D:/work/jre1.7.0/bin/client/jvm.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.7.0]
"JavaHome"="D:/work/jre1.7.0"
"MicroVersion"="0"
"RuntimeLib"="D:/work/jre1.7.0/bin/client/jvm.dll"

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27/4
2018

hive1.2报错MoveTask

整体环境java1.7+hadoop2.7+hive1.2;

hive执行的mr结束后,报以下错误:
Failed with exception Unable to move source hdfs://x1/hive/stagingdir_hive_2018-04-27_10-08-41_073_4546675974966003896-1/-ext-10001 to destination hdfs://x2/hive/warehouse/tag_2018042710068970_1
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MoveTask

原因:
scratchdir和warehouse在多个权限的目录下;
hdfs://x1/hive/stagingdir 和 hdfs://x2/hive/warehouse ;

解决方法:
将两个目录的权限设置一致;
set hive.exec.scratchdir=hdfs://x2/hive/scratchdir/;
set hive.metastore.warehouse.dir=hdfs://x2/hive/warehouse/;

可将参数加到~/.hiverc中;

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