perl - Efficient way to continually read in data from a text file -

-

There is a script at our FTP endpoint that monitors the FIP log generated by our FTP daemon. What we're currently doing is that a Perl script essentially runs a tail-F on the file and sends every single row to a remote MySQL database, which has slightly different column content depending on the record type.

This table table for content of FTP user functions, along with the name / content of the tablet table, said the package; Downloads, deletes, and everything else logs the VSTPTP.

I consider it particularly bad, but I'm not sure what's better.

The goal of replacement is still to get the log file as soon as possible to file the contents in a database. I am doing something like creating a FIFO / Pipe file instead of the FIP Log file, I can read once in a while, to ensure that I do not read the same thing twice. Considering VSFTTPD, it will look good (I'm thinking that this will not happen, insights are welcome!).

The FTP daemon is VSFTPd, at least I'm definitely sure that the limit of their logging capacitance is: xfter style log, vsftpd style log, both, or no logging.

The question is, what is better than what we are already doing, if anything?

Honestly, I do not look very wrong with what you are doing now. The only real problem with tail -f is that if your watch script ever dies, then it loses position (to solve the log-file with rotation There is a semi-difficult problem) CPAN is also a good module which protects you from the person and there is some good optimization available in it.

Use a FIFO as the log can work (try to unlink and reconfigure the logfile at any point where vsftpd does not do, But I see a big problem with it. If no one is studying from the other end of the FIFO (for example, if your script crashes, or never started), then after a short time, all who write to FIFA will begin to stop. And I have not tested this, but it is very likely that hanging the whole server from the logfile write block will not be a very beautiful scenario.


Comments

Post a Comment

Popular posts from this blog

c# - sqlDecimal to decimal clr stored procedure Unable to cast object of type 'System.Data.SqlTypes.SqlDecimal' to type 'System.IConvertible' -

-
I'm new to this I'm writing a clr. stored procedure that can be used to get values ​​used in a calculation Call for another stored procedure for Gives an archived methodology int (I think SqlInt32? Value of the table's value is int) which is then necessary to convert to decimal. Here I have the code: Public static integral mood (SQL MDMMYLUE, escalistering AMY type, out of SQLDCM Result) {aResult = 0; Try {SqlConnection conn = New SqlConnection ("Reference Connection = True"); SqlCommand cmd = New SqlCommand ("sp_GetType", conn); Cmd.Parameters.AddWithValue ("@ myValueType", aMyValueType); Cmd.CommandType = CommandType.StoredProcedure; Conn.Open (); Object type = CMD. Exclamation Asser (); Conn.Close (); Decimal type FORCalculation = Convert. ToDecimal (type); Decimal value = convert toDecimal (aMyValue); // ** calculation calc = new calculation (); Decimal result = calorie.docalulation (typefarculation, value); I get an exception...
Read more

Calling GetGUIThreadInfo from Outlook VBA -

-
I need to find the active window'm writing a VBA macro in MS Outlook, which is a specific process. The goal of this is to get the active window / document name even if its original application has more than one document interface. User processor with GetCurrentThreadId is active, I am using GetGUIThreadInfo to get .dll. Here is the correct code: private type RECT as as Left LongPtr top LongPtr right LongPtr down LongPtr termination of private type GUITHREADINFO cbSize as LongPtr flags LongPtr hwndActive LongPtr hwndFocus LongPtr hwndCapture LongPtr as as as as as reset as LongPtr rcCaret as LongPtr hwndCreate as LongPtr hwndMoveSize as HwndMenuOwner end of Private Equity PtrSafe function GetWindowThreadProcessId Lib "user32" (_BVV hnw LongPtr as LongPtr Nig Mr. announced as PtrSafe function GetGUIThreadInfo Lib "user32" _ (ByVal dwthreadid as LongPtr, _ lpguithreadinfo as GUITHREADINFO) LongPtr Sub MyFunction () as dim strWindowTitle string = space as s...
Read more

Obfuscating Python code? -

-
I'm looking for a way to hide my Python source code. print "Hello World!" How can I encode this example so that it is not human-readable? I have been asked to use Base 64 but I'm not sure how. itemprop = "text"> It is limited only, first level ambiguous resolution, but has built-in: byte-code in Python Is a compiler for: dragon-o-m py_compile & lt; Your program.py & gt; creates a .pyo file with a byte-code, and where the docstrings are removed, etc. You can rename .pyo with the .py extension, and python & lt; Your program.py & gt; runs as your program, but it does not have your source code. PS : If your program blur modules like this, you need to rename them with the .pyc suffix (I Not sure it will not break a day), or you can work with .pyo and run them with python -o ... .pyo ( Import should work). This will allow dragon to search your modules (otherwise, Python looks for the .py module).
Read more