[Ocfs2-users] Did anything substantial change between 1.2.4 and 1.3.9?

Sunil Mushran Sunil.Mushran at oracle.com
Mon Apr 21 19:12:31 PDT 2008


What version? File a bugzilla (oss.oracle.com/bugzilla) with
all the version details, etc. Easier to track issues that-a-way.

mike wrote:
> Here's another issue:
>
> I have a client with 9049 files/dirs in a specific dir. The first time
> I did an ls /that/dir/ it froze up - and hitting control C actually
> made it behave interestingly.
>
> Every two times I hit control C, I got one of these permission denied
> lines (the files exist, I can open them, I can edit them, I am root,
> too)
>
> [root at web03 ~]# ls /home/mark/web/domain.com/
> ls: cannot access /home/mark/web/domain.com/file32.htm: Permission denied
> ls: cannot access /home/mark/web/domain.com/file4444.htm: Permission denied
>
> etc.
>
> Also I am seeing in my webserver log once in a while:
>
> 2008/04/21 18:10:09 [crit] 6917#0: *1256684 stat()
> "/home/mike/web/michaelshadle.com/" failed (13: Permission denied),
> client: 1.2.3.4, server: michaelshadle.com, request: "GET / HTTP/1.0",
> host: "michaelshadle.com"
>
> a stat() call fails on a directory, and that directory not only
> exists, it's readable and behaves properly 99.999% of the time. these
> random stat() failures are a bit odd. However, this hasn't thrown an
> error on my proxy server, which is nice. But it is something I am
> worried about. I can stat it in shell:
>
> [root at web03 web]# stat /home/mike/web/michaelshadle.com/
>   File: `/home/mike/web/michaelshadle.com/'
>   Size: 4096            Blocks: 64         IO Block: 32768  directory
> Device: 811h/2065d      Inode: 135710860   Links: 15
> Access: (0711/drwx--x--x)  Uid: ( 1000/    mike)   Gid: ( 1000/    mike)
> Access: 2008-03-25 04:27:52.000000000 -0700
> Modify: 2008-03-04 02:17:22.000000000 -0800
> Change: 2008-03-27 04:45:57.000000000 -0700
> [root at web03 web]#
>
> Does anything there look out of place? Nothing shows up in dmesg or
> any of my /var/log/* logs...
>
>
> On 4/21/08, Herbert van den Bergh <herbert.van.den.bergh at oracle.com> wrote:
>   
>> Does the web server that the proxy server talks to have any extended
>> debugging you can turn on?  In particular, would it be able to log
>> timestamps of things it does, so you can narrow down where the hic-up
>> occurs?  A brute force method to do this would be to run strace -T on all
>> server processes, and look for things that take much longer than they
>> should, like disk reads exceeding 100ms, or other syscalls taking much
>> longer than usual.  Ideally you'd have some timing around code you suspect,
>> and log a message if the time exceeds some configurable limit.
>>
>> Thanks,
>> Herbert.
>>     



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