:49.566DEBUGNova.virt.libvirt.config[req-5c973fff-e9ba-4317-bfd9-76678cc96584 None None]Generated XML (' to_xml/opt/stack/nova/nova/virt/libvirt/config.py:82This log we can learn:
The code module is nova.virt.libvirt.config, so it should be Hypervisor Libvirt related operations
Log content is generated by XML
If you want to trace the source code, you can go to the/opt/stack/nova/nova/virt/libvirt/config.py 82 line, by To_xml
Another example is the following log:2015-12-10 2
/directory.For example, Nova placed under the/var/log/nova/, Glance placed under the/var/log/glance ...The log files for each sub-service are also saved separately, and the naming is also very canonical and easy to distinguish.For example, Nova-api's log is generally named/var/log/nova/api.log, and other logs are similar.Format of the LogThe log format for OpenStack is uniform, as followsThe following examples illustrateThis log we can learn:
) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160503-1462278374917072471.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160503-1462278430248004972.jpg "style=" border:0px;white-space:normal;float:none; "/>Another example is the following log:2015-12-10 20:46:49.671 ERROR Nova.compute.manager [req-5c973fff-e9ba-4317-bfd9-76678cc96584 None None] No compute node record for host Devstack-controllerThis log we can learn:
Th
When and how to enable MySql logs in the blog at the front end We learned how to enable MySql slow query logs. Today, let's take a look at how to read these slow query logs. When and how to enable MySql logs in the blog at the front end We learned how to enable MySql slow qu
This article describes using PowerShell to read system logs, which can be filtered by a number of factors, such as journal name, log type, and time. A cmdlet called Get-eventlog is available in PowerShell that can be used to read system logs.
Run this Get-eventlog cmdlet and try:
Copy Code code as follows:
management module is responsible for the semantic information of logs.
In a log file, the log record is used as an element to maintain a circular linked list. Shows the data structure of the linked list at a coarse granularity:
Figure 2 log record the data structure of the circular linked list
AccordingCode:
Figure 3 key code
Add the first and second records from an empty log file, for example:
Figure 4 Examples of log wr
Linux under All files, at the login will also follow the login to read many configuration files. Learn some information before you introduce the reading order.Shell type for user loginLog-in ShellLog in normally via a terminalSu-usernameSu-l USERNAMENon-sign-on shellShell in the following waySu USERNAMETerminal window opened by graphical terminalShell scripts that are executed automaticallyBash's configuration fileGlobal configuration file/etc/profice
Management--Event ViewerYou can view logs for categories such as application, security, system, and so on
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static void Main(string[] args){EventLog eventlog = new EventLog();eventlog.Log = "Security";//"Application"应用程序, "Security"安全, "System"系统EventLogEntryCollection eventLogEntryCollection = eventlog.Entries;foreach (EventLogEntry entry in eventLogEntryCollection){//if (entry.EventID == 4624)//{/
ASP reads the IIS log file code, which you can write to implement an IIS log browsing program, can read the IIS log access time, client IP, request target, protocol status, etc., if you want to read more log content, You can refer to a series of methods of the Mswc.iislog ob
the activation of other libraries, such as mSQL, GD2, XML, in Phpinfo () to be displayed correctly
The proof that PHP can find Php_mysql.dll dynamic Connection library, and MySQL running another condition is able to interrogate MySQL Client connection library that is Libmysql.dll file, it seems that the problem is here.
I to C disk search Libmysql.dll file, found in the System32 and PHP folder has a file, do a backup, I tried to delete system32 Libmysql.dll file, found to be locked, unable to
Tags: Everyone database folder Security ProgramYesterday Charm Network installed an ASP site in the Win2003 system, open the homepage of the site IIS error prompt 80004005 can not be updated, the database or object is read-only, this error, the original in Win7 IIS does not appear in this prompt, According to this hint I think is the
1, the ASPX Trojan file can realize the reading process, the IIS information, the Cross station, executes the cmd command in the ASP.net space.
Solving method
1, for each site to create a user, and put the user into the Guest group, to the site write, read permissions. and allow anonymous access on IIS.
2,
Copy Code code as follows:
Copy the above c
the activation of other libraries, such as mSQL, GD2, XML, in Phpinfo () to be displayed correctly
The proof that PHP can find Php_mysql.dll dynamic Connection library, and MySQL running another condition is able to interrogate MySQL Client connection library that is Libmysql.dll file, it seems that the problem is here.
I to C disk search Libmysql.dll file, found in the System32 and PHP folder has a file, do a backup, I tried to delete system32 Libmysql.dll file, found to be locked, unable to
One, find the "application pool" name1. Open "IIS"(1), click on the Start menu to find the management tools, such as(2) , open the Administrative tools, and locate the "Internet infomation Services (IIS) ..." module, such as2 . Find the website you want to adjustClick the Small triangle icon on the left to expand the child nodes,3. get the application pool name used by the current siteOpen the site's "Adva
After the IIS website is published, the configuration file cannot be read due to insufficient permissions.
This problem may occur because of an error in the website project or webconfig. However, the IIS does not display the error.
You only need to set this to see your website errors.
1. Open IIS
2. Go to the
Set read access in the. net iis Metabase tutorialThe. net process account must have read access to the iis Metadatabase.This problem occurs mostly because. net framework is installed first and iis is installed later.Solution:Start> Program> microsoft. net framework sdk v2.0>
Solving method
1, for each site to create a user, and put the user into the Guest group, to the site write, read permissions. and allow anonymous access on IIS.
2,
The code is as follows
Copy Code
Copy the above code into the C:windowsmicrosoft.netframeworkv2.0.50727config web.config
The following places: it is possible to prohibit cross station,
Today in the local installation of IIS, build Web site, the application error when the following errors:Server error in Internet Information Services 7.5 Error Summary HTTP Error 500.19-internal Server error cannot access the requested page because the page's related configuration data is invalid. Verbose error message module IIS WEB Core notification BeginRequest Handler has not determined the error code 0
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