grep exception log file

This article mainly introduces Mysql log files and log types. This article describes the log file types, error logs, General query logs, slow query logs, binary logs, and so on, for more information, see Log file type MySQL has s

= Now.strftime ("%d") error_list_logfile=error_list_logfile1+strdatetime1+ ". TXT "printerror_list_logfilepattern=compile (R ' exception|^\t+\bat\b ', IGNORECASE) fp =open (error_list_logfile, "w+") defwritetotxt (List_name,file_path):try: fp=open (file_path, "A +") foriteminlist_name: fp.write (str (item) + "\ n") fp.close () exceptioerror:print ("fail Toopenfile ") # parse file to find the

exceptions to system logs. That is to say, we can view the exceptions in the event viewer. For convenience, create an appexception. CS file in the app_code folder of the website and perform the following steps: 1. Add "using system. diagnostics;" reference. The diagnostics namespace provides classes that can interact with system processes, event logs, and performance counters. 2. Create a method named predictionlog () to write a

the exceptionSecond: Common anomalies　　Attributeerror attempts to access a tree that does not have an object, such as foo.x, but Foo does not have a property xioerror input / output exception; it is basically impossible to open the file Importerror the module or package cannot be introduced is basically a path problem or name error Indentationerror syntax error (subclass); The code is not aligned correctly

open a file that does not exist3.trying to find the given stringClassObject,and this string represents a class that does not exist."if it appears runtimeexception Abnormal , then it must be your problem " is a fairly reasonable rule .It should be avoided by detecting whether array subscripts are out of boundsarrayindexoutofboundsexceptionException;This should be done by detecting whether the variables are empty before using them.NullPointerExceptiont

Tag: PAC CFile renamed CTO Reference installation Environment Let SEL httpdExceptionless is a free open source distributed Log collection framework, dotnet almost all types of programs can be supported, and also provides an interface, can be easily in the JS log push.Reference:Http://www.cnblogs.com/uptothesky/p/5864863.htmlHttp://www.cnblogs.com/savorboard/p/exceptionless.htmlhttp://mp.weixin.qq.com/s?__bi

#long_query_time = 2#log-queries-not-using-indexes## The following can is used as easy to replay backup logs or for replication.# note:if You are setting up a replication slave. Debian about# Other settings for may need to change.#server-id = 1Log_bin =/var/log/mysql/mysql-bin.logExpire_logs_days = 14Max_binlog_size = 100M#binlog_do_db = Include_database_name#binlog_ignore_db = Include_database_name## * Inn

This article mainly introduces the capture warning information in Perl, exception information and write to the log in detail, this article gives the capture warning-not processing, catch warning-and converted to exceptions, catch warnings-and write logs, capture and write a complete example of the log, and other practical examples, the need for friends can refer

simplify recovery after you lose a data file that belongs to that tablespace.If you lose such a data file, you can perform the following steps:1. Delete the data file.2. Delete the table space. 3. Re-create the index table space.4. Recreate the indexes that are contained in the table space.1. You can recover a table space that contains only indexes without perfo

E.printstacktrace () Prints an exception when the program is running an exception. But there are times when we want to export these exceptions to the log so that we can look at them at any time, and quickly find the code for the program's exception with these exceptions.Is there a way to output the details of the

invokes die () each time a warning is generated, which translates each warning into an exception. If you want to include a warning message in an exception, you can write this: Copy Code code as follows: Local $SIG {__warn__} = sub { my $message = shift; Die $message; }; The actual warning message is passed to the anonymous function as a unique parameter. Capturing warnings-

./Startup. Sh Using catalina_base:/software/Apache-Tomcat-6.0.18Using catalina_home:/software/Apache-Tomcat-6.0.18Using catalina_tmpdir:/software/Apache-Tomcat-6.0.18/tempUsing jre_home:/usr Run the following command:PS-Ef | grep Tomcat Check that no Tomcat process exists. View Tomcat log information. The following error occurs:Warning: Error instantiating 'org. Apache. Juli. classloaderlogmanager 'r

In the process of development, you may often encounter a requirement, you need to export the Python exception information to the log fileOnline methods are not very practical, the following is a practical, from the Python 2.7 source code to buckle out ofNonsense not to say directly on the code, the code is not many, more than the comments1 Importsys, Traceback2 3Traceback_template =" "Traceback (most recent

[Translated from mos] in unix/linux, how does one delete a shard by using a File descriptor (File Descriptors) to retrieve the deleted File (Data File or redo log )?Use File Descriptors in unix/linux to retrieve deleted files (Dat

First, function 1. Grading Printing SaveSolve a lot of important, unimportant printing information in the console mixed up in a group of embarrassing situation. You can set up to print only information of a certain level and above. Divided into 5 categories of printing:Ddlogerror (@ " print and save special Important information ");DD Logwarn (@ " print and save important information " );DD loginfo (@ " print and save general information ");DD logdebug (@ " Print and save very general informa

print logs off, to achieve the flexibility of log closed and open, also need to be on the original log class to do some encapsulation.There is also a time when our program problem crashes, we want to be able to collect the cause of the exception for analysis, so you can save the log