watchdog sys

Scenario 1: Use sqlplus to log onIf you enter the user name password normally, an error will be reported because sys is a super administrator outside the database, so when we log onEnter the password + as sysdba (for example, 123456 as sysdba)Scenario 2: Use PL/SQL to log onThis is a common operation for logging on to the database. However, when using sys as the user name to log on, we will reportORA-28009:

The python sys module contains functions related to the python interpreter and its environment. You can use dir (sys) to view the methods and member attributes in the interpreter. Copy codeThe Code is as follows:Import sysPrint dir (sys) Result: Copy codeThe Code is as follows:['_ Displayhook _', '_ doc _', '_ thook _', '_ name __', '_ package _', '_ stderr _', '

Beep. sys/Trojan. ntrootkit.1192, msplugplay 1005.sys/ backdoor. pigeon.13201, etc. 2 Original endurer2008-06-25 1st (Continued 1)Modify the computer date, and then download drweb cureit! Scan.At the same time, download bat_do and fileinfo to extract file information, package and backup, and delete files in a delayed manner.Then download the rising Kaka Security Assistant to clean up the malicious program s

A simple watchdog script that automatically restarts a process when it is stopped. The script is as follows: 1get_web_srv_sts () 2 { 3 ret = 'ps-AEF | grep "$1" | grep-V grep | WC-l' 4 5 case $ RET in 6 0) 7 fun_ret = "down" 8 ;; 9 1) 10 fun_ret = "up" 11 ;; 12 *) 13 fun_ret = "error: $ RET instances running" 14 ;; 15 esac 16} 17 18 19 get_web_srv_sts "./process1" 20 if [$ fun_ret = 'up'] 21 then 22 echo "process1 running" 23 else 24./process1 25 slee

error, Ack error, format error), error detection, response method (ACK, NACK ), communication Mode (Half Duplex) and other settings; The MAC Sub-layer is the core of the CAN protocol. The function of the data link layer is to form meaningful messages from the physical layer and provide transmission control procedures such as error control. The function of the data link layer is usually executed in the hardware of the CAN controller;Frame concept: Data frame: the frame used by the sending unit t

The watchdog of the recent project has undergone three versions.First version:With PS-EF, if the program hangs, it starts.A second version:program because the runtime will not listen to the 7901 port, so it is not easy to determine whether the machine is hanging, but to determine if this port is listeningA third version:When the 7901 port is no longer listening, the original killall in the start, each output to the content of the file to add the date,

1. In Python 3.x it does not prompt for the name ' reload ' is not defined has been shot in the 3.x. Replaced by Import importlib importlib.reload (SYS) Sys.setdefaultencoding ("Utf-8") was completely abandoned in 3.x, and could look at Stackover's article: Http://stackoverflow.com/questions/3828723/why-should-we-not-use-sys-setdefaultencodingutf-8-in-a-py-script 2. Python3 anomaly-attributeerror:module '

How to solve the 'sys' undefined Script Error in Atlas (sys undefined) This problem occurs because the windows system does not have the latest version of the patch. Enable Windows automatic update and upgrade the patch to the latest version to solve this problem. Since my system has not been upgraded for a long time, more than 50 patches in the system have not been upgraded. The specific patch solves th

In Oracle DB 12.1.0.2, SYS. ALL_CONSTRAINTS and SYS. ALL_CONS_COLUMNS are defined, SYS. ALL_CONSTRAINTS is defined as follows: CREATE OR REPLACE VIEW ALL_CONSTRAINTS ASselect OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME, SEARCH_CONDITION, SEARCH_CONDITION_VC, R_OWNER, R_CONSTRAINT_NAME, DELETE_RULE, STATUS, DEFERRABLE, DEFERRED, VALIDATE

/dev, device file storage directory, the application through the read and write to these files and control, can access the actual equipment; /sys/devices directory, according to the type of bus attached to the device, organized into a hierarchical structure, saving all the equipment of the system, is the file system management equipment, the most important directory structure; This is the directory structure that the kernel devices are layered by

Today, I suddenly found that disk C has a serious shortage of space. I went into disk C and saw two large files: hiberfil. sys and pagefile. SYS. What are the two files used for? Can I delete them?The results of online access are as follows:A: "hiberfil. sys is a system Sleep file, which is as large as the physical memory of the computer. It can be deleted (but c

Original link: docker:unable to remount sys readonly:unable to mount SYS as ReadOnly max retries reached Docker the following error occurred while CentoOS6 was running a container $ sudo docker run-i-T Centos/bin/bash unable to remount sys readonly:unable to mount SYS as ReadOnly max retries R Eached This problem

Error: Microsoft ole db provider for SQL Server Error '20140901' the server 'sunmay2008/sqlexpress 'cannot be found in SYS. servers '. Verify that the specified server name is correct. If necessary, execute the Stored Procedure sp_addmediaserver to add the server to SYS. servers. /Admin/admin_templateproject.asp, row 1003 solution: this error occurs because the computer name of the server is changed. theref

Label:Case one: Login with SqlplusNormal input username password, will be error, because SYS is a super administrator outside the database, so when we log inTo enter a password: password +as sysdba (for example: 123456 as SYSDBA)Scenario two: Log on with PL/SQLThis is our usual login database is very normal operation, but with the SYS as a user name when logged in will be reportedOra-28009:connection as

First, the preface This document aims at the OOP8 production environment, the specific optimization strategy needs to adjust according to the actual situation; This document describes how to optimize performance for Redhat Enterprise Linux in the following ways. 1 Linux proc File system, through the proc file system adjustment, to achieve performance optimization. 2 The Linux Performance Diagnostics tool, which describes how to use Linux's own diagnostic tools for performance diagnostics. Bold I

Tags:server temporary tables memory database connections primary keys formatilisdup This article describes in detail the new SYS schema introduced by MySQL 5.7. Firstly, this paper briefly introduces the function and location of SYS schema, and secondly, introduces the view, function and stored procedure in SYS schema, and then, through two examples, demonstrat

From: Http://blog.51cto.com/lijichao/308509/proc/sys/net/ipv4/icmp_timeexceed_rateThis led to the famous "Solaris Middle Star" when traceroute. This file controls the rate at which ICMP Time Exceeded messages are sent./proc/sys/net/ipv4/igmp_max_membershipsThe maximum number of IGMP (multicast) sockets on the host to listen to./proc/sys/net/ipv4/inet_peer_gc_maxt

This article describes how to use the Sys module in the Python standard library, this article describes how to use the sys module to obtain script parameters, processing modules, using the sys module to operate on module search paths, using the sys module to find built-in modules, and using the

) | Pwd$sid.ora (Windows) is present The basic order of Oracle Permissions authentication is this:The Sqlnet.authentication_services setting value is used to determine whether to use OS authentication or password file authentication.If you use password file authentication, you should look at the following two conditions:If the Remote_login_passwordfile parameter is set to not none,and the password file exists, you can normally use password file authentication, otherwise it will fail. Sqlnet. Aut

All TCP/IP tuning parameters are located in the/proc/sys/net/directory. For example, here are some of the most important tuning parameters, followed by their meanings:　　1,/proc/sys/net/core/rmem_max -the largest TCP data receive buffer　　2,/proc/sys/net/core/wmem_max -the largest TCP data send buffer3,/proc/sys/net/ipv4