[OpenAFS-devel] Re: how to use cacheout

[Jason Edgecombe]

Andrew Deason wrote:
> On Tue, 31 Aug 2010 20:05:07 -0400
> Jason Edgecombe <jason@rampaginggeek.com> wrote:
>
>   
>> hi everyone,
>>
>> I tried to use src/venus/cacheout.c from the current master, but it
>> segfaulted. The -help option is next to useless.
>>     
>
> Platform, usage, backtrace? It doesn't segfault for me right now, but
> I've only run it around two or three times.
>
>   
>> I read that this is a tool to force a fileserver to refresh IP ACL's.
>>
>> If so, how do I use this tool?
>>     
>
> The usage that was the motivation for getting it to build was to refresh
> the IP ACLs on all known fileservers in the local cell (according to the
> vldb) for particular host IPs. Give it
>
> $ cacheout -ip 1.2.3.4 1.2.3.5 1.2.3.6
>
> to invalidate the host CPS cache for (client) hosts 1.2.3.4, 1.2.3.5,
> and 1.2.3.6.
>
> You can also give it an -id parameter, which specifies vice IDs if I
> recall correctly. It will cause the host CPS to be recalculated for
> users that are accessing under that vice id. I'm not sure how well that
> usage actually works (or if that's what it's actually intended to do)
> since as far as I can tell the fileserver only invalidates the cps for
> the first client structure it finds for each vice id. But I only glanced
> at it, so I may be misreading something.
>
>   
Platform: RHEL5.4 x86_64
OpenAFS version: 1.4.11 RPMs from openafs.org
Kernel: 2.6.18-164.11.1.el5
--------
% rxdebug localhost -version -port 7001
Trying 127.0.0.1 (port 7001):
AFS version:  OpenAFS 1.4.11 built  2010-07-16
--------
compilation steps:
git checkout master with commit:
     335ccb4082657b7d0e4e9af1076356cf115642d2 ihandle positional read
and write
ran "sh regen.sh" on an ubuntu box to create the configure script.
ran ./configure && make
copied the cacheout binary to my personal bin folder.
--------
command that was run: "~/bin/cacheout" (no arguments given)
output:
    Warning: could not get cell configuration.
    Segmentation fault (core dumped)
--------
"gdb ~/bin/cacheout core.1234" yields the following:
Core was generated by `.../bin/cacheout'.
Program terminated with signal 11, Segmentation fault.
[New process 27446]
#0  0x00000000004111f2 in afsconf_Check ()
(gdb) bt
#0  0x00000000004111f2 in afsconf_Check ()
#1  0x0000000000411465 in afsconf_GetLocalCell ()
#2  0x0000000000412044 in afsconf_GetCellInfo ()
#3  0x0000000000404f90 in MyBeforeProc ()
#4  0x0000000000413f0a in cmd_Dispatch ()
#5  0x00000000004049d6 in main ()


Thanks,
Jason