beats troubleshooting

Some days ago found: http://hellojava.info/This site, the article basic Ali to encounter Java Troubleshooting Analysis Summary, rich content.Online fault summary is actually the most valuable, good summary is a system evolution history, is the team's rare accumulation of precipitation.Although the public out of the content is not much, but it is worth a look, spent a lot of time to complete each article to see the whole, well, accustomed to the round

Sometimes network protocols can occur a variety of problems, a lot of NMS in the face of problems. This article said that the Internet Café network protocol troubleshooting methods. First, the performance of Internet Bar network protocol fault Protocol failures typically behave in the following ways: 1. Internet café computer can not log on to the server; 2. The computer does not see itself in the "Network Neighborhood", nor does it see other comp

First, Concept chapter In the introduction of troubleshooting DHCP before the first to clarify a few conceptual things, only theoretical enrichment, in order to better understand the following troubleshooting ideas. First: What data can the DHCP service provide? The DHCP service is not omnipotent, he can only provide network-level-related parameters, such as IP address, mask address, gateway address, WINS

Tags: info troubleshooting alt Software Profiler COM sharing summary selectionRemember the previous customer in the use of software, there are occasional deadlock problems, because the time is uncertain, not good to reproduce the problem, at that time to solve the problem is a bit tricky.Here is a summary of the two common ways to look at deadlocks:The first is the graphical monitoring of:SQL Server Profiler--and tools--when you log on in the trace pr

following will describe the whole problem of the troubleshooting process.2. Principle of semi-synchronous replication MySQL Master repository is consistent through the Binlog log, the main library executes the transaction locally, the Binlog log is returned to the user after the disk is dropped, and the repository synchronizes the operations of the main library by pulling the main library binlog logs. By default, there is no strict synchronizatio

Tags: mysql error status MasterMySQL master-slave replication troubleshooting case One:Problem: master/slave cannot syncPhenomenon:master:mysql> show MASTER status;Empty Set (0.00 sec)Slave:mysql> show SLAVE status \g;Slave_io_running:connectingSlave_sql_running:yesSeconds_behind_master:nulllast_io_errno:1045Last_io_error:error Connecting to master '[email protected]: 3306 '-Retry-time:60 retries:86400Troubleshooting process:First, MASTER: [[email pro

Tags: boot inf CTRL drive technology config technology sharing user troubleshooting# #root用户密码的修改Press the up and down key to interrupt the boot, press "E" to enter the kernel bootThe linux16 line is deleted to the location shown on the way and modified;Press "Ctrl+x" to start when you have finished modifyingEnter the system to switch to the real environment, start to modify the root password, and create/. autorelable file;After completion, enter two

Just into a company, suddenly a direct throw to the public network development test machine, there is output traffic explosion 300m+, directly lead to server load high, IDC cacti monitoring reported traffic anomaly problem, the following is the troubleshooting process:1, vim/root/.bash_history # View root user operation command log file, any information is not, be clear2, vim/var/log/Secure # Check the log, found a lot of login failed to try to record

in a real-world production environment, you will often encounter servers CPU full problem, this time, the correct method of troubleshooting, help to quickly locate the problem. 1, find the most CPU -consuming process executes top , displays a list of process run information, and then type p ( uppercase p), the process follows the CPU The usage rate is sorted. 2. Find the thread that consumes the most CPUexecutes top-hp 8880, displays a list of thread

=INNODB;Disadvantage: If the single table is increased too large, such as more than 100G, performance will be affected. In this case, if you use shared tablespace, you can separate files, but there is also a problem, if the scope of access is too large to access multiple files, it will be slower. If you use a stand-alone table space, consider using partitioned tables to mitigate the problem to some extent. In addition, when you enable standalone tablespace mode, you need to adjust the settings o

#=====================Import Database:# TAR-XVF employees_db-full-1.0.6.tar.bz2# CD employees_db# msyql-h Localhost-u Root Employees.sql=============================================Precautions:1, [ ]# rpm-qa|grep MySQLIf both Mysql-libs and Mysql-server are present, unload both.2, []# whereis cmake3. []# CD mysql-5.6.21[]# Vim Install-sourceError occurred:Troubleshooting:[]# yum Install ncurses* error still occurs. As follows:Error Downloading Packages:ncurses-static-5.7-3.20090208.el6.x86_64:

Tags: Linux system troubleshooting Linux system Boot process boot directory recovery partition table information recovery for main sectorsLinux Boot SequenceThis diagram is a complete introduction to the Linux boot sequenceBelow I will tell you in detail a boot processThe first step is to load the BIOSWhen you turn on the computer, the computer will first load the BIOS information, which is called the power-on self test. This shows that the BIOS infor

range of the TEMP tablespace space. It may also contain other causes of exceptions. 2. Observing the states of TEMP and other spaces is one of Dba's daily responsibilities. We can use Toad, Object Browser, and other tools, or use 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') "usa

Network diagnosis is an important technical task that manages and makes good use of the network to maximize its role. This article briefly describes the hierarchical diagnosis technology, discusses the diagnosis of various router interfaces, and reviews the troubleshooting of the connectivity fault of the interconnected network.Network Fault Diagnosis OverviewNetwork Fault Diagnosis: based on the fault phenomenon, the Network diagnosis tool is used to

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