> Hi, > I have an C++ application(logger.exe) running on my linux > machine. This application logs all the information to a log > file named trace.log. The owner and the group of the files > are as follows. > > File name owner group user > ========= ===== ===== ==== > C++ application (logger.exe) root root root > trace.log root root root > > The C++ application(logger.exe) and trace.log are having root > as owner and root as group. > When I open this trace.log with vi editor(redhat linux kernel > 2.6) and save during when the application is running and edit > it, the application stops logging to the file no more logs > are logged into the trace.log file even the application is > running. Why this behaviour? > > But I created another user named test and changed the owner > and group as follows. > > File name owner group user > ========= ==== ===== ==== > C++ application (logger.exe) test test test > trace.log test users test > > Then log file continues to log even after editing the log > file with vi editor. > > NOTE:But I want my application to run when the owner, group > and user for > both the files as root. > > Can somebody give pointers on this. Your comments will be appriciated. > > Regds, > Ravi If you edit a file via vi and then save the changes, you will get a whole new file with a new i-node number. Your program will no longer be writing to that file. I believe this is expected behavior. Are you sure that, with the owner being 'test', you are actually editing and saving changes to the file? I tested this myself with a non-root user and the program (in my case a simple script) no longer writes to the file (it exhibits the same behavior as with root). If you do: ls -i trace.log before and after you edit and save changes, do you get the same number? Michael -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
