nginx_daemon.sh #!/bin/bash
#
this_pid=$$
while true
do
ps -ef | grep nginx | grep -v grep | grep -v $ this_pid &> /dev/null
if [$? -eq 0 ];then
echo ” nginx is ok”
sleep 3
else
Tag: utilization
[Data Structure] Establish Hufman Tree by Pile
Build a heap
#pragma once #include #include using namespace std;// Small pile templatestruct Less{ bool operator() (const T& l, const T& r) {return l struct Greater{ bool operator() (const T
Using ZooKeeper to achieve distributed lock and service registration center
Original text: Using Zookeeper to realize distributed lock and service registration center
For the definition and principle of Zookeeper, there are already many excellent articles on the Inte
Deploy Java Web Project with Jetty
1. Jetty installation
1, jetty
Download from the official website: jetty-distribution-8.1.15.v20140411
jetty-distribution-9.2.9.v20150224 .zip
Extract jetty directly to its
Hibernate uses @Dynamicinsert and @Dynamicupdate to generate dynamic SQL statements
In using Hibernate4 recently, I found two very mysterious annotations @DynamicInsert and @DynamicUpdate
If it is in the configuration file That is, dynamic-insert and dynamic-update
The
Delivery problem with SQOOP imports
Use the following sqoop1 import when importing
sqoop import –connect jdbc:oracle:thin:@ip:port/ORCL –username user –password pwd –table db.table –target-dir /path –delete-target-dir -m
Cocos Creator uses Chrome debugging TS project
1. Add Chrome Debug configuration
Cocos Creator editor interface development ->VS Code Workflow->Add Chrome Debug Configuration
2.VSCode installs the Debug For Chrome plugin
3. Mo
Three data synchronization between the system in the system using WebService and JMS
The structure diagram of the jmsclient system is as follows:
The spring configuration file is as follows:
< ?xml version="1.0" encoding="UTF-8"?>
org.apache.activemq.jndi.Act
C # uses the CEF3 to take the list of Jingdong keyword product list, take the mobile phone as an example
Using c#’s cef3 to simulate browser operations, grab the list of keywords in the Jingdong Mall.
Get the product title, product id, product link, product price
public partial class Form1
Using AIOHTTP to make asynchronous reptiles
Introduction
asyncio can implement single-threaded concurrent IO operations and is a commonly used asynchronous processing module in Python. Regarding the introduction of the asyncio module, the a