[Ocfs2-users] Number of Nodes defined

David david at adurotec.com
Thu Nov 17 11:52:58 PST 2011


Sunil,

Its 1.4....

On 11/17/2011 11:35 AM, Sunil Mushran wrote:
> It must be the same fragmentation issue that we've addressed in 1.6 
> and later.
> Is this 1.4?
>
> On 11/17/2011 08:45 AM, David wrote:
>> Sunil, et al,
>>
>> The reason I needed to make this changed was because the ocfs2 
>> partition, which is 101G in size with 41G currently in use ran out of 
>> disk space even though the OS was reporting 60G available.
>>
>> I had this issue once before and found that the node slot of that 
>> cluster was set to 4 even though there were only 2 nodes in the 
>> cluster.  When i reduced the node slots to 2 disk space was freed up.
>>
>> I made these changes to this cluster; reduced the node slots to 2 and 
>> everything worked until this morning when the same error returned "No 
>> space left on device".
>>
>> The OS is still showing available disk space but as the error 
>> suggests i can't write to the partition.
>>
>> Any idea what could be happening?
>>
>> On 11/16/2011 05:45 PM, Sunil Mushran wrote:
>>> Reducing node-slots frees up the journal and distributes the metadata
>>> that that slot was tracking to the remaining slots. I am not aware of
>>> any reason why there should be an impact.
>>>
>>> On 11/16/2011 03:07 PM, David wrote:
>>>> I did read the man page for tunefs.ocfs2 but I didn't see anything 
>>>> indicating what the impact to the fs would be when making a change 
>>>> to an existing fs such as reducing the node slots.
>>>>
>>>> Anyway, thank you for the feedback, I was able to make the changes 
>>>> with no impact to the fs.
>>>>
>>>> David
>>>>
>>>> On 11/16/2011 12:12 PM, Sunil Mushran wrote:
>>>>> man tunefs.ocfs2
>>>>>
>>>>> It cannot be done in an active cluster. But it can be done without 
>>>>> having to
>>>>> reformat the volume.
>>>>>
>>>>> On 11/16/2011 10:08 AM, David wrote:
>>>>>> I wasn't able to find any documentation that answers whether or 
>>>>>> not the
>>>>>> number of nodes defined for a cluster,  can be reduced on an active
>>>>>> cluster as seen via:
>>>>>>
>>>>>> tunefs.ocfs2 -Q "%B %T %N\n"
>>>>>>
>>>>>> Does anyone know if this can be done, or do I have to copy the 
>>>>>> data off
>>>>>> of the fs, make the changes, reformat the fs and copy the data back?
>>>>>>
>>>>>> _______________________________________________
>>>>>> Ocfs2-users mailing list
>>>>>> Ocfs2-users at oss.oracle.com
>>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>
>>>
>



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