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答复: why my test result on dfs short circuit read is slower? - MapReduce - [mail # user]
...I'm not very clear about your senario, just a kindly reminder: "If security is on, the feature can be used only for user that has kerberos credentials at the client, therefore map reduce tas...
   Author: 谢良, 2013-02-16, 04:04
答复: Problems - MapReduce - [mail # user]
...Please add "-server" in front of your JVM options just a curiosity: why not using 64-bit version ? ________________________________________ 发件人: Sean Hudson [[EMAIL PROTECTED]] 发送时间: 2013年1月...
   Author: 谢良, 2013-01-18, 03:44
答复: 答复: OOM/crashes due to process number limit - MapReduce - [mail # user]
...A threadump should give you some clue on which kind of thread number is not expected,  hope it helpful for u ________________________________ 发件人: Aiden Bell [[EMAIL PROTECTED]] 发送时间: 2...
   Author: 谢良, 2012-10-19, 11:06
答复: OOM/crashes due to process number limit - MapReduce - [mail # user]
...what's the exactly OOM error message, is it sth like "OutOfMemoryError: unable to create new native thread" ? ________________________________ 发件人: Aiden Bell [[EMAIL PROTECTED]] 发送时间: 2012年...
   Author: 谢良, 2012-10-19, 04:10
Question about namenode HA - MapReduce - [mail # user]
...Hi Todd and other HA experts,  I've two question:  1) why the zkfc is a seperate process, i mean, what's the primary design consideration that we didn't integrate zkfc features int...
   Author: 谢良, 2012-10-15, 03:01
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