[Pvfs2-users] Modifying stripe size does not show

[Phil Carns]

Could you try to do a "make clean" and rebuild one more time to make sure?

If that doesn't work, then it might be best just to send me a tar.gz of 
your source tree and configuration files (off of the mailing list) so I 
can have a look at what's going on.  I'm not sure why you would still 
hit that error.

-Phil

Nirmal Thacker wrote:
> Ok , the patch does the job- in modifying the code correctly that is.
> I see the bug in the code and I see that the patch fixes it. However,
> the problem still persists.
> The error is similar as well:
> 
> [D 14:05:40.412091] PVFS2 Server version 1.5.1 starting.
> [E 14:05:40.422537] Error: /home/thacker/etc/pvfs2-fs.conf line 47:
> Option can't be defined in that context[E 11/05 14:05] Could not find
> handle range for host (null)
> [E 11/05 14:05] Please make sure that the host names in
> /home/thacker/etc/pvfs2-fs.conf and
> /home/thacker/etc/pvfs2-server.conf-node15 are consistent
> [D 11/05 14:05] PVFS2 Server: storage space created. Exiting.
> 
> Cannot find handle range? Seems to be fine without the Distribution
> sub-section
> 
> Does the order in which these subsections appear matter ? I've jus added
> them right after the default <StorageHints> subsection
> 
> Nirmal
> 
> Nirmal Thacker wrote:
>> Hi Phil,
>>
>> Yes I have the patch in the extracted directory of PVFS2-1.5.1 and I
>> apply the patch using
>>
>> patch -p0 < patch
>> Although the patch succeeds, I still face the issue.
>>
>> I have been going through the code too , since the patch only modifies a
>> single line.
>>
>> For one the patch begins at line 1248, but line 1248 in pvfs2-1.5.1 has
>> something entirely different. I still dont understand though, how the
>> patch succeeds
>>
>> For another, I think the patch refers to the function
>> DOTCONF_CB(exit_distribution_context) which is at line 1039 in my
>> server-config.c . I modified the configuration context there to
>> CTX_FILESYSTEM as does the patch, but the problem persists.
>>
>> Nirmal
>>
>>
>>
>> Phil Carns wrote:
>>   
>>> Are you sure that you applied the patch correctly?  That fixes the
>>> problem when I try the same scenario here.
>>>
>>> -Phil
>>>
>>> Nirmal Thacker wrote:
>>>     
>>>> The patch did not help either. It brings up the same error.
>>>>
>>>> Could there be more patch releases which I can try?
>>>>
>>>>
>>>> Phil Carns wrote:
>>>>       
>>>>> This was a bug in our older releases.  You can try applying this patch
>>>>> to fix it if you are still stuck on 1.5.1:
>>>>>
>>>>> http://www.pvfs.org/fisheye/rdiff/PVFS?csid=MAIN:slang:20070625220806&u&N
>>>>>
>>>>>
>>>>> -Phil
>>>>>
>>>>> Nirmal Thacker wrote:
>>>>>         
>>>>>> Phil:
>>>>>>
>>>>>> I did add the Distribution context to my pvfs2-fs.conf , and restarted
>>>>>> the server nodes, and received an "Option cant be defined in that
>>>>>> context" error.
>>>>>> The error points to the Filesystem context, maybe indicating that I
>>>>>> cannot declare the distribution sub-context here (?)
>>>>>>
>>>>>> I have attached the error and a copy of my pvfs2-fs.conf
>>>>>>
>>>>>> The error comes up when I create a storage space.
>>>>>>
>>>>>> [I have 4 storage servers and 1 MDS. I tried by reconfiguring storage
>>>>>> and restarting the servers and the error persists. It also says
>>>>>> that the
>>>>>> host names must be consistent [see log] . Thats strange since
>>>>>> otherwise,
>>>>>> the servers start fine, without the Distribution context defined]
>>>>>>
>>>>>> Nirmal
>>>>>>
>>>>>> Phil Carns wrote:
>>>>>>           
>>>>>>> Hi Nirmal,
>>>>>>>
>>>>>>> I think that you can use the same mechanisms to set distribution
>>>>>>> parameters in 1.5.1 as in our newer releases.
>>>>>>>
>>>>>>> There is some information here about how to set the strip size at run
>>>>>>> time for a particular directory (no need to recompile):
>>>>>>>
>>>>>>> http://www.pvfs.org/fisheye/browse/PVFS/doc/pvfs2-tuning.tex?r=1.2#l208
>>>>>>>
>>>>>>>
>>>>>>> You can also set a default for the whole file system in your server
>>>>>>> configuration file by adding a section that looks like this into your
>>>>>>> <Filesystem> section:
>>>>>>>
>>>>>>>     <Distribution>
>>>>>>>         Name simple_stripe
>>>>>>>         Param strip_size
>>>>>>>         Value 4194304
>>>>>>>     </Distribution>
>>>>>>>
>>>>>>> -Phil
>>>>>>>
>>>>>>> Nirmal Thacker wrote:
>>>>>>>             
>>>>>>>> Hello
>>>>>>>>
>>>>>>>> I am using PVFS2-1.5.1 and as far as I know, to modify the default
>>>>>>>> stripe size of PVFS2, I must modify the header
>>>>>>>> include/pvfs2-dist-simple-stripe.h .
>>>>>>>>
>>>>>>>> Strangely , I did so and rebuilt the source, yet the pvfs2-viewdist
>>>>>>>> still shows me the default striping for any new files created
>>>>>>>> with the
>>>>>>>> modified pvfs2 build!
>>>>>>>>
>>>>>>>> Nirmal
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Pvfs2-users mailing list
>>>>>>>> Pvfs2-users at beowulf-underground.org
>>>>>>>> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
>>>>>>>>               
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