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How to change language settings in R
...de the file Rconsole (in my installation it is C:\Program Files\R\R-2.15.2\etc\Rconsole); this works also for the command Rscript.
For example you can locate the Rconsole file with this two commands from a command prompt:
cd \
dir Rconsole /s
The first one make the root as the current directory,...
MISCONF Redis is configured to save RDB snapshots
...from redis background save FAQ)
echo 'vm.overcommit_memory = 1' >> /etc/sysctl.conf
sysctl vm.overcommit_memory=1
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When to use Hadoop, HBase, Hive and Pig?
...k. HBase has nothing to do with it. That said, you can efficiently put or fetch data to/from HBase by writing MapReduce jobs. Alternatively you can write sequential programs using other HBase APIs, such as Java, to put or fetch the data. But we use Hadoop, HBase etc to deal with gigantic amounts of ...
Maven equivalent for python [closed]
...ation information, and you can build eggs, dist tarballs, binary tarballs, etc with it.
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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
...to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM settings (should be no output):
env | grep rvm
if there was output, try to open new terminal, if it does not help then rest...
How to restart tomcat 6 in ubuntu [closed]
...art and shutdown tomcat, You could use that
if tomcat is installed then
/etc/init.d/tomcat5.5 start
/etc/init.d/tomcat5.5 stop
/etc/init.d/tomcat5.5 restart
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ORACLE 启动提示 内存不足 OUTOF MEMORY - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
ORACLE 启动提示 内存不足 OUTOF MEMORY原配置 etc sysctl.conf文件kernel.shmall = 2097152kernel.shmmax = 2147483648kernel.shmmni = 4096kernel.sem = 250 32000 10...
原配置 /etc/sysctl.conf文件
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kerne...
正确重置MySQL密码 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...止MySQL服务，然后使用skip-grant-tables参数启动它：
shell> /etc/init.d/mysql stopshell> mysqld_safe --skip-grant-tables &
此时无需授权就可以进入到MySQL命令行，使用SQL重置MySQL密码：
UPDATE mysql.user SET Password=PASSWORD('...') WHERE User='...' AND Host= '...'...
解决：error while loading shared libraries: libpcre.so.1: cannot open ...
...件的位置（可以使用命令 whereis xxx ），并把目录添加到/etc/ld.so.conf.d/libc.conf中，没有则新建这个文件。然后再运行ldconfig才可以生效。
解决：用以下shell命令解决：（用root用户）
echo "/usr/local/lib" >> /etc/ld.so.conf.d/libc.conf
sudo...
CentOS系统下如何挂载第2块磁盘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...机器都要手动挂载。
设置开机自动挂载需要修改/etc/fstab文件
#vi /etc/fstab
在文件的最后增加一行
/dev/sdb1 /home ext3 defaults 1 2
PS：
fstab(/etc/fstab)是Linux下比较重要的配置文件，它包含了系统在启动时...