量化自我和极简主义的窝藏点
OS: Ubuntu 14.04
When installing a ubuntu desktop KDE, some error like “unable to correct problems you have held broken packages” happen. So I finally found the problm is the package python3-software-properties is too new and can’t be compatible with the kde package. The soluation is follling:
sudo apt-get remove python3-software-properties
sudo apt-get install python3-software-properties=0.92.36
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer今天(2015-03-13)是办理离职流程的最后一天。归还公司的资产，到财务结清工资并拿离职证明。过程还比较顺利。感觉有些轻松又有些伤感。从2012年9月入职到现在离开，时间过的可真快。有成长，有郁闷，有辛酸，现在真有些不是滋味。或许以后还会再回来，不知道。人生有几个三年，来回折腾人生。有些老了，或许不够壮志，但路要走得稳。希望自己在新单位发展如意！
原网站地址是： http://kaldi.sourceforge.net/
后来更改为： http://kaldi-asr.org/ https://github.com/danpovey/kaldi-asr
sudo: luarocks: command not found
solutition:
$ sudo -s
root@hq:~# luarocks install cutorch
使用luarocks安装lunit，出现下面报错：
jerry@ubuntu:~$ sudo luarocks install lunit
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/torc h/rocks/master – Failed downloading https://raw.githubusercontent.com/torch/rocks/master/manifest
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/rock s-moonscript-org/moonrocks-mirror/master – Failed downloading https://raw.githubusercontent.com/rocks-m oonscript-org/moonrocks-mirror/master/manifest
Error: No results matching query were found.
经查发现https://raw.githubusercontent.com/torch/rocks/master/manifest这个地址无法连接。只好切换另一个服务器了
方法1：
sudo luarocks install –verbose –only-server=http://rocks.moonscript.org lunit
方法2：
jerry@ubuntu:~$ mkdir ~/.cache/luarocks/https___rocks.moonscript.org
jerry@ubuntu:~$ sudo wget https://rocks.moonscript.org/manifest-5.1 -O ~/.cache/luarocks/https___rocks.moonscript.org/manifest-5.1
环境 ：CentOS
[root@sandbox ~]# lsof -i:80
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
httpd 1118 root 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1255 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1256 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1257 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1258 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1259 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1260 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1261 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
httpd 1262 apache 4u IPv6 9178 0t0 TCP *:http (LISTEN)
环境：spark 1.1
spark-shell启用的时候一直出现这个提示：
Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient memory
查了一下午才明白，需要在master结点上做如下修改：
vi /etc/spark/conf/spark-defaults.conf
添加一项
spark.driver.memory=10g
注：spark.driver.memory表示master的memory大小设置， 而spark.executor.memory代表worker结点内存大小。
环境：CDH 5.2, spark 1.1
使用pyspark启动时发现报错如下：
socket.gaierror: [Errno -2] Name or service not known
经查是由/etc/hosts中缺件少
127.0.0.1 localhost localhost.localdomain
这一行造成的。添加后问题解决。
今天是新年上班的第一天，刚坐到椅子上就发现之前丢失的员工卡。之前记得是在办公区丢的，没想到竟然在自己的座椅后面。（这是第二次丢了，又花了一百）已经重办了也没办法退了。下回可得多留心些！