record 6100 troubleshooting

Record the troubleshooting and resolution of a deadlock, and record the troubleshootingThis is a sad reminder. I remember last week's busy schedule. The goal is to modify some bugs in the code left by another team. This project is used for OLAP analysis, the Logic Server is mainly responsible for metadata operations, such as information displayed on the page, and

It's really unfamiliar with Oracle's various errors, documenting the final troubleshooting record of a long-troubled problem.First, the symptom description:Plsql Unable to connect to the database, prompting: "Ora-12154:tns: Unable to resolve the specified connection identifier"Second, the process of troubleshooting Tnsnames.ora fill in no errors The monitor

the question, such as the official explanation that some of the cases are not automatically configured: some frameworks or generic code used it before the program called DbContext.How to understand this problem, the situation of our project team is:Legacy systems also use EF6, the new iteration of the development of the system needs to be embedded in the old system to use, then there are two dbcontext in the old system, if the new system DbContext first initialized, then the program will not ha

: b7797. Find b7797 in the corresponding jstack output result and find the call stack of the corresponding process. After finding the call stack, it is better to find out the specific reason: We can find that It is a problem with the DBCP connection pool. What task is being executed by starting a timer? The loadavg is too high because the queue is too long. Finally, locate the Code: The Configuration Attribute of DBCP is modified. Set the minimum idle time to 5 in line 82

Tomcat with Error:To troubleshoot this issue, you first need to adjust the Tomcat log level to the way you can record the log through log4j, in the following ways:http://tomcat.apache.org/tomcat-7.0-doc/logging.html#Using_Log4jAfter adjusting as required, the error message is displayed:Understanding: It is possible that the Log4j.properties configuration file is not accessible in the jar package, so the log4j.properties is placed under the Classes fol

Record the php high load troubleshooting experience. in the last project, deamon was run in the background to handle the task. There has been no problem before. after a monitoring report such as adding task processing time, deamon's machine experienced high load, with an average of more than 20 and a backlog of tasks. First, use strace to view system calls: Strace-tt-T-c-p 31420 Strace-c found that th

}‘zabbix_server [4559]: ERROR [file:json.c,line:714] Something impossible has just happened. According to the preceding log analysis, something impossible has just happened is reported every time the obtained variables are automatically discovered. This error shows the two monitoring programs that automatically monitor some API interfaces added to a development a few days ago. I manually stopped the monitoring of both APIs. No error is reported. I carefully checked the above and found a suspicio

The method of the object class and its integrationEnumerations/enumerations vs. switchInner classBigIntegerSingle-instance design pattern in threading lazy, a hungry man????Synchronized and lock usage differencesCombined design patternArrayList (Debug)???Iterator iterator (next Remove method)Set and iterator actions during iteration iterableMap.entry ()The relationship between HashSet and HashMapComparator/comparableTreeset/treemapFileFilterVariable parameters (array advanced)Byte input stream r

couldn't think of any settings, then I read the HTML and JS Code and finally found the difference. The reason is that the Code for opening a new window is placed in the Ajax callback function, and the code of that website is not written in the callback function. After finding the root cause of the problem, you can solve the problem and finally see the desired effect. $(‘#open_new‘).submit();dialog.showPayLayer(); // var fn = function(json) {　　// if(_model.isSuccess(json)) {

After the new service is launched, it is observed that the CPU is between 10 and ~ There were 70% serious fluctuations, but the service processing speed was average from the service counters per second. Next is the troubleshooting procedure: 1. dstat-Tam 　　 About every 10 s of a cycle, the network traffic began to become small, and then suddenly increased, the CPU also increased. The changes in network traffic do not match the results of performance c

follows: Ran out of trampolines of typeAfter viewing this information, you can search for the corresponding solution directly.So refer to:Http://answers.unity3d.com/questions/64909/ran-out-of-trampolines-of-type-2-ios.htmlIn unity made a change, this thought all should be able to return to normal,, will not appear yang too called the Little Dragon Woman back is a sad and heartbreaking,,, but build finished, found,, or crash, view the stack or,,, jit,~~~ and still the problem here, , I feel a li

. NET environment gets on mono?The query gets 65001 for the UTF-8.So what does my win environment look like?All 936 is Simplified Chinese is also GBK encoding.Now that the Linux environment gets GBK encoded but not used, is my Linux environment not GBK encoded? Locale view the encoding used by the current system:Exclusively's UTF8 is not GBK. The locale-a command can view the supported encodings, with the display support GBK.So can only guess mono on the run. Net program to do encoding conversio

, Node3 the tick off, and click OK. In this way, theoretically node3 is not a possible owner of Node1 and Node3.Online has said that this can solve the problem, but according to the actual operation found not, but also need to do the following operations.2) Modify the possible owners of the cluster in PowerShellRun the Get-clusterresource command on the PowerShell command line to view resource within the clusterOther resources in SQL Server 1 above, use Get-clusterownernode to view possible owne