kymtwyf’s gists

kymtwyf / clean nginx log.md

Created April 22, 2016 16:15

clean /var/log/nginx logs

cd /var/log/nginx
mv access.log access.log.old
mv error.log error.log.old
kill -USR1 `cat /var/run/nginx.pid`

kymtwyf / install python zbar.md

Created April 28, 2016 08:39

on ubuntu

###update sudo apt-get udpate

###install pip sudo apt-get install python-pip

###install zbar sudo apt-get install python-zbar

kymtwyf / tmp_overflow.md

Created April 29, 2016 03:37

overflow 1.0M 1.0M 0 100% /tmp

Reference when executing df -hl shows /tmp is mounted on overflow :

overflow          1.0M  1.0M     0 100% /tmp

If your “/tmp” mount on a linux filesystem is mounted as overflow (often sized at 1MB), this is likely due to you not specifying “/tmp” as its own partition and your root filesystem filled up and “/tmp” was remounted as a fallback. To fix this after you’ve cleared space, just unmount the fallback and it should remount at its original point:

sudo umount overflow

kymtwyf / 阿里云Aliyun Access denied; you need (at least one of) the SUPER privilege(s) for this operation.md

Last active June 25, 2016 02:01

阿里云Aliyun Access denied; you need (at least one of) the SUPER privilege(s) for this operation.md

Aliyun Reference 按照他提供的方法：

去掉DEFINER=root@`% 类似的子句

sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/ ' your.sql > your_revised.sql

检查 SQL 文件，去除下面类似的语句

kymtwyf / nifi-fail.md

Created June 29, 2016 16:25

org.apache.nifi.StdErr Failed to start web server: "Too many open files" //

Nifi 报错： [NiFi logging handler] org.apache.nifi.StdErr Failed to start web server: 打开的文件过多

reference reference2

Added to /etc/security/limits:

* hard nofile 50000

kymtwyf / soot error.md

Created July 5, 2016 14:57

soot Exception in thread "main" java.lang.RuntimeException: Could not load classfile: java.lang.CharSequence

reference I met a exception when execution as instructions on soot homepage

soot Exception in thread "main" java.lang.RuntimeException: Could not load classfile: java.lang.CharSequence

This is caused by a high version of JDK(1.8.0)

switching to a lower version of jdk (1.6 or 1.7) solves this problem

cheers!~

kymtwyf / reading list.md

Created August 13, 2016 07:32

go this this page

http://nginx.org/en/docs/http/request_processing.html

kymtwyf / How to Create a Bootable Ubuntu USB Drive, for PC, on a Mac.md

Created September 30, 2016 08:12

reference

hdiutil convert -format UDRW -o ubuntu-16.04-desktop-amd64 ubuntu-16.04-desktop-amd64.iso

diskutil list

diskutil unmountDisk /dev/disk2

sudo dd if=ubuntu-16.04-desktop-amd64.dmg of=/dev/disk2 bs=1m

kymtwyf / update nginx.md

Created January 7, 2017 09:47

update nginx to latest version in ubuntu

sudo add-apt-repository ppa:nginx/stable
sudo apt-get update
sudo apt-get install nginx

kymtwyf / remove-touchmove.md

Created April 14, 2017 18:42

mobile web 去掉回弹效果

$("body").on('touchmove', function(e) { e.preventDefault() });

Wu Yongfeng kymtwyf