[Pvfs2-developers] extra trove error messages

[Sam Lang]

On May 24, 2006, at 1:46 PM, Sam Lang wrote:

>
> Hi Phil,
>
> I think that's from the crdirent, which does a keyval_read to  
> verify that the directory doesn't exist, and only creates it if  
> ENOENT is returned.  At the level of keyval_read_op_svc, its  
> impossible to know that though.  I guess I can just remove the  
> error reporting call, although it would be nice to have it there  
> for cases where we actually want to read an entry we expect to be  
> there and print an error if we don't find one (corrupted db).
>

Actually I take that back.  The only place in the keyval.c code we  
print an error is in read_list.  So it probably isn't a problem there  
since read_list is only used by get_eattr.  So the keyval_read_op_svc  
only prints a warning if DBPF_KEYVAL_DEBUG is enabled.

It looks like the error you're seeing might be in dspace_getattr,  
which gets called from lookup and prelude.  If we do a lookup to  
verify that a file doesn't exist before creating it , I could imagine  
seeing that.  In any case the problem is the same as before.  I could  
print a warning if debugging is enabled.

Alternatively, I could create a trove flag (TROVE_NOENT_NON_FATAL)  
for those operations where we actually want to return ENOENT as a non- 
fatal response.

-sam


> -sam
>
>
> On May 24, 2006, at 10:44 AM, Phil Carns wrote:
>
>> If I start a pvfs2-server in the foreground (with the -d option),  
>> I see quite a few of these messages on the console when accessing  
>> the file system, even with just an ls:
>>
>> pvfs2-trove-dbpf: DB->get: DB_NOTFOUND: No matching key/data pair  
>> found
>>
>> I assume this isn't really an error; trove was probably just asked  
>> to look up something that was expected to not exist.  Should this  
>> message be quieted?
>>
>> -Phil
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