[Xymon] Is the powershell windows client reporting file time incorrectly?

David Baldwin david.baldwin at ausport.gov.au
Wed Jan 15 06:15:22 CET 2014


Thanks. Should be fixed now.

David.
> And it is!
>
> Function epochTime assumes a local time and converts to UTC:
>
>
> function epochTime([System.DateTime] $t)
> {
> 		[uint32](($t.Ticks - ([DateTime] "1/1/1970 00:00:00").Ticks) / 10000000) - $osinfo.CurrentTimeZone*60
>
> }
>
>
>
>
> But it's being used on times that are already UTC
>
>
> function XymonFileStat($file,$hash="")
> {
> ...
> 		"atime:{0} ({1})" -f (epochTime $fh.LastAccessTimeUtc),$fh.LastAccessTime.ToString("yyyy/MM/dd-HH:mm:ss")
> 		"ctime:{0} ({1})" -f (epochTime $fh.CreationTimeUtc),$fh.CreationTime.ToString("yyyy/MM/dd-HH:mm:ss")
> 		"mtime:{0} ({1})" -f (epochTime $fh.LastWriteTimeUtc),$fh.LastWriteTime.ToString("yyyy/MM/dd-HH:mm:ss")
> ...
> }
>
>
>
>
> I think the fix is to change the lines above to
>
>
> 		"atime:{0} ({1})" -f (epochTime $fh.LastAccessTime),$fh.LastAccessTime.ToString("yyyy/MM/dd-HH:mm:ss")
> 		"ctime:{0} ({1})" -f (epochTime $fh.CreationTime),$fh.CreationTime.ToString("yyyy/MM/dd-HH:mm:ss")
> 		"mtime:{0} ({1})" -f (epochTime $fh.LastWriteTime),$fh.LastWriteTime.ToString("yyyy/MM/dd-HH:mm:ss")
>
>
>
> glauber
> -----Original Message-----
> From: Ribeiro, Glauber 
> Sent: Tuesday, January 07, 2014 16:09
> To: 'xymon at xymon.com'
> Subject: RE: Is the powershell windows client reporting file time incorrectly?
>
> It looks as if in the new client, the GMT correction is being applied twice, or GMT correction is being applied to a time that's already in GMT.
>
> g
>
> -----Original Message-----
> From: Ribeiro, Glauber 
> Sent: Tuesday, January 07, 2014 16:02
> To: 'xymon at xymon.com'
> Subject: Is the powershell windows client reporting file time incorrectly?
>
> Please see this:
> http://lists.xymon.com/oldarchive/2008/06/msg00441.html
>
> And here is what the new client reports for a file in my system:
>
> [file:D:\tsiback\today\tsbackup.log]
> type:100000 (file)
> mode:777 (not implemented)
> linkcount:1
> owner:0 (BUILTIN\Administrators)
> group:0 (MCKOEMTAB3\None)
> size:7764
> atime:1389100219 (2014/01/07-01:10:18)
> ctime:1389100219 (2014/01/07-01:10:18)
> mtime:1389100676 (2014/01/07-01:17:56)
> FileVersion:
> FileDescription:
>
>
>
> Let's take mtime. 2014/01/07-01:17:56 is correct, in local time.
> 1389100676, if I'm not mistaken (big if) is 2014-01-07 13:17:56
>
> I'm at GMT-6 (USA Central Time), so the correct time stamp for the file in GMT would have been 07:17, not 13:17. Xymon sees the time "in the future" and reports that the file is massively out of synch ("File was modified 4294959253 seconds ago - should be <108000").
>
>
> ==================================
>
> Compare with the old BBWin client (same file name, but different server):
>
> [file:d:/tsiback/today/tsbackup.log]
> type:0x00020 (file)
> mode:777 (not implemented)
> linkcount:1
> owner:0 (not implemented)
> group:0 (not implemented)
> size:4823
> atime:1389062375 (2014/01/7-02:39:35)
> ctime:1389058500 (2014/01/7-01:35:00)
> mtime:1389062373 (2014/01/7-02:39:33)
>
> 1389062373 is 2014-01-07 02:39:33, so the old client is reporting the unixepoch in local time, as described in the old bug report I mentioned at the start of this email.
>
>
>
> Also, why is the "type" reported differently? (100000 versus 0x0020) Does it matter? 
>
>
> glauber
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> Xymon at xymon.com
> http://lists.xymon.com/mailman/listinfo/xymon


-- 
David Baldwin - Senior Systems Administrator (Datacentres + Networks)
Information and Communication Technology Services
Australian Sports Commission          http://ausport.gov.au
Tel 02 62147830 Fax 02 62141830       PO Box 176 Belconnen ACT 2616
david.baldwin at ausport.gov.au          1 Leverrier Street Bruce ACT 2617
Our Values: RESPECT + INTEGRITY + TEAMWORK + EXCELLENCE


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