Re: What happens when you do a ctrl-c on a big dfs -rmr

2009-03-11 Thread
All deleted or not a file deleted at all, that depending on how fast you press the ctrl-c. The delete command is not executed in your terminal, instead the rmr command is sent to the hadoop namenode and is executed there. On 09-3-12 上午10:48, "bzheng" wrote: > > I did a ctrl-c immediately aft

Re: IPC Client error | Too many files open

2008-10-07 Thread
try update jdk to 1.6, there is a bug for jdk 1.5 about nio. 在 2008-9-26,下午7:29,Goel, Ankur 写道: Hi Folks, We have developed a simple log writer in Java that is plugged into Apache custom log and writes log entries directly to our hadoop cluster (50 machines, quad core, each with 16 GB Ra

Re: nagios to monitor hadoop datanodes!

2008-10-07 Thread
Hadoop already integrated jmx inside, you can extend them to implement what you want to monitor, it need to modify some code to add some counters or something like that. One thing you may need to be care is hadoop does not include any JMXConnectorServer inside, you need to start one JMXConnec