Where to check the default Hadoop 2 (YARN) configuration values for:
HDFS: hdfs-site.xml
YARN: yarn-site.xml
MapReduce: mapred-site.xml
Default Hadoop 2 (YARN) configuration values for Hadoop 2.2.0 from Apache Hadoop website:
HDFS: http://hadoop.apache.org/docs/r2.2.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml
YARN: https://hadoop.apache.org/docs/r2.2.0/hadoop-yarn/hadoop-yarn-common/yarn-default.xml
dd seems slow when I use command like # dd if=/dev/sda2 of=./sda2.bak How to make it faster? You can make dd faster by specifying a good bs like # dd if=/dev/sda2 of=./sda2.bak bs=8192 8192 is a magic number. There are may be other good sizes for bs for different systems. But 8192 works pretty well…
This post summarizes Linux Kernel new features, bugfixes and changes in Linux 4.14.223 Release. Linux 4.14.223 Release contains 176 changes, patches or new features. In total, there are 277,921 lines of Linux source code changed/added in Linux 4.14.223 release compared to Linux 4.14 release. To view the source code of Linux 4.14.223 kernel release online,…
How to squeeze space in Latex? A good tutorial about “squeezing space in LaTex” in here from the Cambridge University’s website: http://www.eng.cam.ac.uk/help/tpl/textprocessing/squeeze.html These settings work great for me: setlength{textfloatsep}{1pt} setlength{abovecaptionskip}{1pt} setlength{belowcaptionskip}{1pt} A more aggressive configuration to squeeze space in a LaTex doc: % save space usepackage{enumitem} setlist{nolistsep} % no space between refs usepackage{bibspacing} setlength{bibspacing}{baselineskip} usepackage[small,compact]{titlesec}…
How to get file extension from a file name in JavaScript? For examples, For “file.txt”, I want to get “txt”. For “file2.multi.ext.fileext”, I want to get “fileext”. This JavaScript function works well for me. function getExt(filename) { var idx = filename.lastIndexOf(‘.’); // handle cases like, .htaccess, filename return (idx < 1) ? “” : filename.substr(idx…
There are lots internal and external links on my site. Unfortunately, some of them are broken over years. How to find out all these broken links on my site? I use this tool http://www.brokenlinkcheck.com/ which can detect the broken links well. More info here: Broken links checker for sites Read more: Broken links checker for…
I noticed your answer on configuring encfs on CentOS 6. I had difficulties installing encfs on CentOS 6. How did you install it? Thanks. For CentOS 6, I used a slightly old version (version 1.7.4) using an RPM built for by PUIAS: For x86-64 version: # yum install http://puias.princeton.edu/data/puias/6/x86_64/os/Addons/fuse-encfs-1.7.4-1.puias6.x86_64.rpm For i686 version: # yum install…
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