Fault description: The HJD04 program-controlled switch and the public network of Posts and Telecommunications adopt the DOD1 loop relay network. All users cannot make an external phone call and are busy. At this time, observe the MFP on the Multi-frequency signaling processing board. The lamp used by the multi-frequency generator is always on a certain position.
Analysis and maintenance of this fault is mostly because the MFP board is suspended and crashed after a set of recorder is occupied ).
MySQL databaseOfHigh LoadWhat are the possible causes? How to troubleshoot? This article will introduce the troubleshooting methods when the MySQL database load is high. Let's take a look at this process.
The Troubleshooting logic is as follows:
1: whether the memory occupies a large number of swap partitions.
2: I/o pressure is not high, it is best to paste the top display information.
3: whether the d
The network of the school library has been in normal use, but recently it was found that the new center switch of the library and the core switch of the campus network often fail to connect.
Troubleshooting Process
I think there is a convergence layer switch in the library that actually reaches 4909) and the core switch Cisco 4006 S3 of the campus network) are connected through multi-mode optical fiber. Therefore, first consider restarting the two sw
Troubleshooting methods for enterprise mail servers that are frequently blocked by spamhaus anti-spam organizations
In fact, in the process of enterprise mail platform management, enterprise mail administrators are often troubled by a variety of mailbox problems. The biggest problem is the difficulty of server maintenance caused by improper server planning, the most critical and worrying thing is that enterprise mail is often blacklisted by some inter
Article Title: practical recommendations: MogileFS troubleshooting tips. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open-source, and other basic categories, MogileFS provides powerful functions internally, and is well designed for troubleshooting and adjustment, it's just that we don't know how to use it n
Options
Role
-F
Forces the output thread stack when a normal output request is not responded to
-L
Displays additional information about the lock, in addition to the stack
-M
If you call to a local method, you can display the C + + stack
Jstack Execution ExampleJust intercept the part and see this is the 10492 thread snapshot of the current time of the virtual machine process ID. The thread is in the run
the addition principle, F (n-2) + f (n-1) methods are used to complete the second step.
According to the multiplication principle, the number of wrong sorting of n different elements
F (n) = (n-1) [F (n-2) + f (n-1)] (n> 2 ).
Supplement:
Someone wrote n letters and N envelopes, if all the letters were wrong. Ask how many different situations are there when the wrong envelope is installed for all the messages.
When n = 1 and 2, it is easy to get the solution ~, Assuming that F (N-1) and F (N-2)
1. Are you sure you want to deal with in-process materials?
These scripts are provided only by the Oracle Support Service for troubleshooting purposes. These scripts have been tested and run as expected. However, you should always perform the test before relying on any script. Verify the script before running it!Because different file editors, email packages, and operating systems process text formats (spaces, tabs, and carriage returns), these script
that the fault should appear here. After the oxide layer is cleared with a knife, the twisted pair wires are reconnected to the switch. The fault has been solved. But how can the new crystal head be oxidized. Later I found that there was a rice bag under the cabinet containing these crystal heads. Oh, it turned out that the steam used to cook made the copper pieces of the crystal head oxidized. This incident reminds us of the impact of the environment on network devices and devices.Fault Analys
An example of troubleshooting SCCM 1606 installation ErrorThe following errors were encountered in the company testing SCCM 2016 in the past few days:Bloggers have encountered an error like the following when installing SCCM 2016Error: "The Setup program encountered an error while performing the file operation, for more information, click the" View Log "button":650) this.width=650; "title=" image "style=" border-top:0px;border-right:0px;background-ima
This article to give your classmates about Ucenter integration, communication failure, debugging test troubleshooting methods, I hope this method for you to help the reunion Oh.
The failure is due to an error in your application's api/uc.php. For example, Ucenter rules. Only uc.php This file returns 1 normally, the communication succeeds. But if you return a SQL error. Instead of 1, it must be a failure. How to test it?
The code is as foll
Address: http://www.myarticlemall.com/Article/Cisco-CCNA-Exam-Tutorial---Troubleshooting-Directly-Connected-Serial-Interfaces/2611
Controllers are the part of the interface that makes the physical connection.
Most important to us is what kind of cable is attathed to a serial interface.
A dte (Data terminating equipment) cable is the normal cable you shoshould use.Being DTE means you have CT the other end to providing clocking.
A dce (Data circuit-te
Sysdig: a powerful tool for system troubleshooting
Sysdig monitors the operating system and captures system activities such as system calls and system events, making it look like a system-oriented tcpdump or Wireshark. If you plan to troubleshoot system exceptions, Sysdig will be a handy tool to solve the problem.
Sysdig: A Tool for Linux Server monitoring and troubleshooting
On Linux, run the following com
Linux system-basic network configuration and troubleshooting
In linux, there are three types of network configuration: one is to directly implement the configuration file using command lines on the terminal, and the other is to modify the configuration file, another method is setup text interface settings.
The difference is that after the configuration file is modified, it will take effect permanently without being changed (the service must be restart
Too many OER 7451 in Load Indicator: Error Code = OSD-04500 troubleshooting
Task Description: Database fault, unable to expand space
Detailed Task:The check space is automatically extended, but an error is reported in the background.OER 7451 in Load Indicator: Error Code = OSD-04500: Invalid option specifiedO/S-Error: (OS 1) function is incorrect. !Wed January 08 10:47:49 2014OER 7451 in Load Indicator: Error Code = OSD-04500: Invalid option specifie
the following statement:
Select upper (F. TABLESPACE_NAME) "tablespace name ",
D. TOT_GROOTTE_MB "tablespace size (M )",
D. TOT_GROOTTE_MB-F. TOTAL_BYTES "used space (M )",
TO_CHAR (ROUND (D. TOT_GROOTTE_MB-F. TOTAL_BYTES)/D. TOT_GROOTTE_MB * 100,
2 ),
'1970. 99') "usage ratio ",
F. TOTAL_BYTES "Idle space (M )",
F. MAX_BYTES "maximum block (M )"
FROM (SELECT TABLESPACE_NAME,
ROUND (SUM (BYTES)/(1024*1024), 2) TOTAL_BYTES,
ROUND (MAX (BYTES)/(1024*1024), 2) MAX_BYTES
From sys. DBA_FREE_SPACE
Gr
Original Couldn't read packet: Connection reset by peer troubleshooting (recommended), couldnpacket
As an O M engineer, not how much you know is your value, but how many mistakes you encounter are your greatest value.
You know, you have me, you have a lot, you have a lot of mistakes, I have you, it's my value.
I have encountered a very difficult error, so I 'd like to share it with you.
The following example shows how to use the root permission on a
Atitit. process standardization --- Summary of the troubleshooting process attilax when mysql cannot be started, and atititattilax
Atitit. process standardization-Summary of the troubleshooting process attilax when mysql cannot be started
1. mysql startup Log File 1
2. console mode 1
3. Install as service 1
3.1. Use the default configuration file 1
3.2. Guiding configuration file 2
4. Start Service 2
1. my
to work.
-Add a datafile:Alter tablespace Name> 'size
-Resize the datafile:Alter database datafile '
-Enable autoextend:Alter database datafile 'Maxsize unlimited;
-Defragment the Tablespace
-Lower "next_extent" and/or "pct_increase" size:ALTER Pctincrease I think the following sentence is important:
"This error does not indicate whether there is sufficient space in the tablespace. It only means that Oracle cannot find a large enough continuous space to match the next extent.
2. Another articl
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