George ,your observations are still correct for truncating file. At least at Sun OS (Solaris) 9.If you truncate catalina.out : echo -n > catalina.out you will see the file becoming 0 bytes long .But once tomcat writes another byte into output it will become the same size it was before truncation. I guess that either jvm or Solaris holds not only the file open for writing but also remembers it's seek in the file (or maybe it is the same on Solaris). Thus,once tomcat starts writing into file after truncate it writes starting from the end of file *he* thinks it is at and the file's size is restored . (Yes that is tried on practice) Maybe Linux behaves differently. So,we are using swallowOutput and actually have no other options except maybe restarting the server . (Note : restarting the server sometime is not an option on production ) Thanks Evgeny
On Fri, Aug 14, 2009 at 9:57 PM, George Sexton <geor...@mhsoftware.com>wrote: > rm catalina.out > > You're right. He truncated it. > > It looks like neither one of us is reading the entire message. I said if > you erase the file, it's held open. This is accurate. He responded with a > way of truncating the file, and that works too. > > George Sexton > MH Software, Inc. > http://www.mhsoftware.com/ > Voice: 303 438 9585 > > > > -----Original Message----- > > From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] > > Sent: Friday, August 14, 2009 12:46 PM > > To: Tomcat Users List > > Subject: RE: Clearing the catalina.out file > > > > > From: George Sexton [mailto:geor...@mhsoftware.com] > > > Subject: RE: Clearing the catalina.out file > > > > > > On one of my production servers, I erased catalina.out. > > > > Exactly how? What's been under discussion here is a truncation > > operation, not an unlink. > > > > - Chuck > > > > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE > > PROPRIETARY MATERIAL and is thus for use only by the intended > > recipient. If you received this in error, please contact the sender and > > delete the e-mail and its attachments from all computers. > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
