log4j JDBCAppender rotate table name -


i have configured application uses log4j it's logging log mysql database. (using org.apache.log4j.jdbc.jdbcappender).

i have perl applications log database well. perl apps setup name of database table changes every month (log_2010_11, log_2010_10 etc). @ end of each month, run reporting scripts on month completed, dump table external file (which gets compressed , archived), , drop table. way total size of logging database stays within sensible limits.

i same log4j, there not appear log4j appender suitable purpose.

is possible this:

log4j.appender.sq=org.apache.log4j.jdbc.jdbcrollingappender  log4j.appender.sq.driver=com.mysql.jdbc.driver  log4j.appender.sq.url=jdbc:mysql://localhost:3306/logs_{%year}_{%month}

thank you.

i figured out how this:

log4j.appender.sq=org.apache.log4j.jdbc.jdbcappender log4j.appender.sq.driver=com.mysql.jdbc.driver log4j.appender.sq.url=jdbc:mysql://localhost:3306/logs log4j.appender.sq.sql=insert accesslog_%d{yyyy_mm} (date, time, tz, ...

it appears can put date format strings sql statement, , jdbcappender expand them , log coresponding table.

however, not create new tables @ start of new month, have manualy create tables beforehand, far ideal.


Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use
Read more