Re: How can I get the memory usage in Namenode and Datanode?

the network link will always be saturated to ensure a constant flow of data. What I am suggesting is potentially looking at ganglia. --- Regards, Jonathan Aquilina Founder Eagle Eye T On 2015-02-22 07:42, Fang Zhou wrote: Hi Jonathan, Thank you. The number of files impact

Re: How can I get the memory usage in Namenode and Datanode?

Can anyone help me? Thanks, Tim On Feb 21, 2015, at 2:54 PM, Fang Zhou timchou@gmail.com wrote: Hi All, I want to test the memory usage on Namenode and Datanode. I try to use jmap, jstat, proc/pid/stat, top, ps aux, and Hadoop website interface to check the memory. The values I

Re: How can I get the memory usage in Namenode and Datanode?

, Jonathan Aquilina jaquil...@eagleeyet.net wrote: I am rather new to hadoop, but wouldnt the difference be potentially in how the files are split in terms of size? --- Regards, Jonathan Aquilina Founder Eagle Eye T On 2015-02-21 21:54, Fang Zhou wrote: Hi All, I want to test

How can I get the memory usage in Namenode and Datanode?

Hi All, I want to test the memory usage on Namenode and Datanode. I try to use jmap, jstat, proc/pid/stat, top, ps aux, and Hadoop website interface to check the memory. The values I get from them are different. I also found that the memory always changes periodically. This is the first thing

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