IMO, unless a "for parsing" output format is available (never likely), the existing line-per-site format should be kept and not altered just for a new command-line option's output.
This isn't a book we're reading for a half hour. It's vos output. Let the lines pass 80 cols. You can have the best of both worlds by noting the position of 's' in server, then padding the end of "server foo" with spaces to wrap the uuid around properly instead of a newline... if one is concerned with the 80col thing that much :) On 4/13/2010 9:26 AM, Jeffrey Altman wrote:
In 2002, the OpenAFS version of the "vos listaddrs" command was updated to include the Arla -printuuid and -noresolve options which permits the UUID and IP address of registered file servers to be displayed. For example: UUID: 006cab10-0e3e-1b20-a3-aa-2601a8c0aa77 24.193.47.88 192.168.122.1 192.168.1.38 In 2008, the -noresolve option was made generic so that it could apply to all vos commands so that instead of seeing DNS names the actual IP addresses of server could be viewed. This change was made because DNS name resolution often makes it appear that a file server is properly registered when instead it is in fact not. However, IP addresses are not the canonical method of identifying a file server. For that the UUID is required and at the present time there is no mechanism when using vos listvldb or vos examine to identify the UUID of the server on which a volume is located. This lack has come up several times in the #openafs IRC channel when attempting to help users setup new cells or add new file servers. The most recent time on March 30th. Gerrit http://gerrit.openafs.org/#change,1742 is an attempt to add -printuuid as a standard option to all vos commands. The only issue at the moment is what the format of the output should look like. UUIDs and DNS names are long. Extending the existing format to include the UUID inline with each server produces output that will not fit in an 80 column terminal. An example of "vos examine -printuuid" output: root.cell 537870331 RW 42 K On-line ASCLEPIUS.MIT.EDU [0037555a-be36-19a6-a2-4d-5e3c0912aa77] /vicepr RWrite 537870331 ROnly 537870333 Backup 537870332 MaxQuota 500 K Creation Fri Jun 06 12:24:21 2008 Copy Thu Feb 26 11:43:23 2009 Backup Tue Apr 13 02:00:17 2010 Last Update Thu Oct 18 12:44:23 2007 7647 accesses in the past day (i.e., vnode references) RWrite: 537870331 ROnly: 537870333 Backup: 537870332 number of sites -> 4 server ASCLEPIUS.MIT.EDU [0037555a-be36-19a6-a2-4d-5e3c0912aa77] partition /vicepr RW Site server ASCLEPIUS.MIT.EDU [0037555a-be36-19a6-a2-4d-5e3c0912aa77] partition /vicepr RO Site server MNEMOSYNE.MIT.EDU [005d91e8-f824-19a6-aa-5c-613c0912aa77] partition /vicepr RO Site server IXION.MIT.EDU [00086236-fa87-19a6-b4-de-ab015b12aa77] partition /vicepr RO Site An example of "vos listvldb -printuuid" output: root.cell RWrite: 536870915 ROnly: 536870916 number of sites -> 4 server bethlehem.your-file-system.com [0008fa02-d48c-19b9-81-fc-419a1dccaa77] partition /vicepa RW Site server bethlehem.your-file-system.com [0008fa02-d48c-19b9-81-fc-419a1dccaa77] partition /vicepa RO Site server faultline.your-file-system.com [0007580a-7001-1aae-85-8e-2f9a1dccaa77] partition /vicepa RO Site server cpe-24-193-47-88.nyc.res.rr.com [006cab10-0e3e-1b20-a3-aa-2601a8c0aa77] partition /vicepa RO Site One alternative output format that could be used when the -printuuid option is specified is found below. vos examine -printuuid: root.cell 537870331 RW 42 K On-line UUID: 0037555a-be36-19a6-a2-4d-5e3c0912aa77 Server ASCLEPIUS.MIT.EDU Partition /vicepr RWrite 537870331 ROnly 537870333 Backup 537870332 MaxQuota 500 K Creation Fri Jun 06 12:24:21 2008 Copy Thu Feb 26 11:43:23 2009 Backup Tue Apr 13 02:00:17 2010 Last Update Thu Oct 18 12:44:23 2007 7647 accesses in the past day (i.e., vnode references) RWrite: 537870331 ROnly: 537870333 Backup: 537870332 number of sites -> 4 RW Site server ASCLEPIUS.MIT.EDU uuid 0037555a-be36-19a6-a2-4d-5e3c0912aa77 partition /vicepr RO Site server ASCLEPIUS.MIT.EDU uuid 0037555a-be36-19a6-a2-4d-5e3c0912aa77 partition /vicepr RO Site server MNEMOSYNE.MIT.EDU uuid 005d91e8-f824-19a6-aa-5c-613c0912aa77 partition /vicepr RO Site server IXION.MIT.EDU uuid 00086236-fa87-19a6-b4-de-ab015b12aa77 partition /vicepr vos listvldb -printuuid: root.cell RWrite: 536870915 ROnly: 536870916 number of sites -> 4 RW Site server bethlehem.your-file-system.com uuid 0008fa02-d48c-19b9-81-fc-419a1dccaa77 partition /vicepa RO Site server bethlehem.your-file-system.com uuid 0008fa02-d48c-19b9-81-fc-419a1dccaa77 partition /vicepa RO Site server faultline.your-file-system.com uuid 0007580a-7001-1aae-85-8e-2f9a1dccaa77 partition /vicepa RO Site server cpe-24-193-47-88.nyc.res.rr.com uuid 006cab10-0e3e-1b20-a3-aa-2601a8c0aa77 partition /vicepa Please offer your opinions. As people have a variety of scripts that parse the output of vos commands to automate behaviors, we would not be changing the default output. Any format change would only be used when the -printuuid option is specified. Jeffrey Altman
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