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Full Discussion: Redirecting log files to null writing junk into log files
Top Forums Shell Programming and Scripting Redirecting log files to null writing junk into log files Post 303008164 by rbatte1 on Tuesday 28th of November 2017 05:36:52 AM
Old 11-28-2017
Oh, now I see. Sorry, I was confused by your phrase "redirecting to null" You have tried to truncate the file separately. The problem you might have is that the file is still open by your running process, so might not actually free up space in the filesystem, although it should appear to become zero bytes.

What happens to the standard error from exec sedec >$logfile By default, that will be sent to the screen or whatever is standard output when the process begins, before your redirect takes effect. Could this be the output of you process complaining that the file has been reset/and or replaced?


What else do you have running from the same session? I would expect that you can issue >otherfile without a problem.




I hope that this helps,
Robin
This User Gave Thanks to rbatte1 For This Post:
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LEARN ABOUT CENTOS

cachefswssize

cachefswssize(1M)					  System Administration Commands					 cachefswssize(1M)

NAME

       cachefswssize - determine working set size for cachefs

SYNOPSIS

       cachefswssize logfile

DESCRIPTION

       The  cachefswssize  command  displays  the  workspace size determined from logfile. This includes the amount of cache space needed for each
       filesystem that was mounted under the cache, as well as a total.

USAGE

       See largefile(5) for the description of the behavior of cachefswssize when encountering files greater than or equal to 2  Gbyte	(  2 **31
       bytes).

EXAMPLES

       Example 1: A sample output of cachefswssize.

       example% cachefswssize /var/tmp/samlog

       /home/sam
				      end size: 	      10688k
			       high water size: 	      10704k

       /foo
				      end size: 		128k
			       high water size: 		128k

       /usr/dist
				      end size: 	       1472k
			       high water size: 	       1472k

       total for cache
				  initial size: 	     110960k
				      end size: 	      12288k
			       high water size: 	      12304k

EXIT STATUS

       The following exit values are returned:

       0	       success

       non-zero        an error has occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cachefslog(1M), cachefsstat(1M), cfsadmin(1M), attributes(5), largefile(5)

DIAGNOSTICS

       problems were encountered writing log file

	   There were problems encountered when the kernel was writing the logfile.  The most common problem is running out of disk space.

       invalid log file

	   The logfile is not a valid logfile or was created with a newer version of Solaris than the one where cachefswssize is running.

SunOS 5.10							    16 Sep 1996 						 cachefswssize(1M)
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