apangin

_hashCode                               java/lang/Object.hashCode()I
_getClass                               java/lang/Object.getClass()Ljava/lang/Class;
_clone                                  java/lang/Object.clone()Ljava/lang/Object;
_dabs                                   java/lang/Math.abs(D)D
_dsin                                   java/lang/Math.sin(D)D
_dcos                                   java/lang/Math.cos(D)D
_dtan                                   java/lang/Math.tan(D)D
_datan2                                 java/lang/Math.atan2(DD)D
_dsqrt                                  java/lang/Math.sqrt(D)D
_dlog                                   java/lang/Math.log(D)D

seanorama

host_new=ip-10-0-0-162.ec2.internal

curl -u admin:admin -i -H X-Requested-By:API -X POST http://${ambari_server}:8080/api/v1/clusters/${cluster_name}/hosts/${host_new}
curl -u admin:admin -i -H X-Requested-By:API -X GET http://${ambari_server}:8080/api/v1/clusters/${cluster_name}/hosts/${host_new}

worker_services="NODEMANAGER JOURNALNODE HDFS_CLIENT DATANODE FLUME_HANDLER METRICS_MONITOR"
for service in ${worker_services}; do
  curl -u admin:admin -i -H X-Requested-By:API -X POST http://${ambari_server}:8080/api/v1/clusters/${cluster_name}/hosts/${host_new}/host_components/${service}
done

ashrithr

Installing Kerberos on Redhat 7

This installation is going to require 2 servers one acts as kerberos KDC server and the other machine is going to be client. Lets assume the FQDN's are (here cw.com is the domain name, make a note of the domain name here):

• Kerberos KDC Server: kdc.cw.com
• Kerberos Client: kclient.cw.com

Important: Make sure that both systems have their hostnames properly set and both systems have the hostnames and IP addresses of both systems in

bancek

brew install bison
brew unlink bison
brew link bison --force
git clone https://github.com/koofr/thrift.git
cd thrift
git checkout 5df24f7afb05fe25352f1fe5fff0206eb0103a3d
./bootstrap.sh
./configure --without-cpp --without-qt4 --without-c_glib --without-csharp --without-java --without-erlang --without-python --without-perl --without-php --without-php_extension --without-ruby --without-haskell --without-go --without-d --without-openssl --without-nodejs --without-lua
make
make install

mmiliaus

Mac OSX

LZO

brew install lzop lzo

Hadoop

• Compile Hadoop LZO library:

vitaLee

import sublime
import sublime_plugin
import re


class CompactExpandCssCommand(sublime_plugin.TextCommand):
    def run(self, edit, action='compact'):
        rule_starts = self.view.find_all('\{')
        rule_ends = self.view.find_all('\}')

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

yujikosuga

otool: at least one file must be specified
Usage: otool [-fahlLDtdorSTMRIHvVcXm] <object file> ...
   -f print the fat headers
   -a print the archive header
   -h print the mach header
   -l print the load commands
   -L print shared libraries used
   -D print shared library id name
   -t print the text section (disassemble with -v)
   -p <routine name>  start dissassemble from routine name