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.\" ========================================================================
.\"
.IX Title "VLLOG 5"
.TH VLLOG 5 "2012-01-23" "OpenAFS" "AFS File Reference"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
VLLog \- Traces Volume Location Server operations
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fIVLLog\fR file records a trace of Volume Location (\s-1VL\s0) Server
(\fBvlserver\fR process) operations on the local machine and describes any
error conditions it encounters.
.PP
If the \fIVLLog\fR file does not already exist in the
\&\fI/usr/afs/logs\fR directory when the \s-1VL\s0 Server starts, the server
process creates it and writes initial start-up messages to it. If there
is an existing file, the \s-1VL\s0 Server renames it to \fIVLLog.old\fR,
overwriting the existing \fIVLLog.old\fR file if it exists.
.PP
The file is in \s-1ASCII\s0 format. Administrators listed in the
\&\fI/usr/afs/etc/UserList\fR file can use the \fBbos getlog\fR command to display
its contents. Alternatively, log onto the server machine and use a text
editor or a file display command such as the \s-1UNIX\s0 \fBcat\fR command. By
default, the mode bits on the \fIVLLog\fR file grant the required \f(CW\*(C`r\*(C'\fR (read)
permission to all users.
.PP
The \s-1VL\s0 Server records operations only as it completes them, and cannot
recover from failures by reviewing the file. The log contents are useful
for administrative evaluation of process failures and other problems.
.PP
The \s-1VL\s0 Server can record messages at three levels of detail. By default,
it records only very rudimentary messages. To increase logging to the
first level of detail, issue the following command while logged onto the
database server machine as the local superuser \f(CW\*(C`root\*(C'\fR.
.PP
.Vb 1
\&   # kill \-TSTP <vlserver_pid>
.Ve
.PP
where <vlserver_pid> is the process \s-1ID\s0 of the vlserver process, as
reported in the output from the standard \s-1UNIX\s0 \fBps\fR command. To increase
to the second and third levels of detail, repeat the command.
.PP
To disable logging, issue the following command.
.PP
.Vb 1
\&   # kill \-HUP <vlserver_pid>
.Ve
.PP
To decrease the level of logging, first completely disable it and then
issue the \f(CW\*(C`kill \-TSTP\*(C'\fR command as many times as necessary to reach the
desired level.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIUserList\fR\|(5),
\&\fIbos_getlog\fR\|(8),
\&\fIvlserver\fR\|(8)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
\&\s-1IBM\s0 Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
.PP
This documentation is covered by the \s-1IBM\s0 Public License Version 1.0.  It was
converted from \s-1HTML\s0 to \s-1POD\s0 by software written by Chas Williams and Russ
Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.