[volunteergrid2-l] Object Health

[Brad Rupp]

90 days has my vote.

Brad

On 7/9/2012 10:35 PM, Iantcho Vassilev wrote:
> My value is still 365 days..
>
> Should we change?
>
>
> Iantcho
>
> On Tue, Jul 10, 2012 at 12:34 AM, Brad Rupp <bradrupp at gmail.com> wrote:
>> Hmmm.  I remember the discussion, but I don't remember ever coming to a
>> consensus.  My two nodes are still at 365 days.
>>
>> Even still, 90 days is not going to cause this problem.  At most, the
>> objects are only 30 days old.
>>
>> Brad
>>
>>
>> On 7/9/2012 3:30 PM, Shawn Willden wrote:
>>>
>>> I think we decided a while ago to change that to 90 days.
>>>
>>> On Mon, Jul 9, 2012 at 3:19 PM, Brad Rupp <bradrupp at gmail.com
>>> <mailto:bradrupp at gmail.com>> wrote:
>>>
>>>      The tahoe-dev folks are asking if servers on the grid were doing
>>>      expiration.  I don't think so, but I thought I would ask to make sure.
>>>
>>>      I assume all nodes on VG2 are still configured with 365 day leases.
>>>      Does anyone have nodes that don't have this?
>>>
>>>      Thanks,
>>>
>>>      Brad
>>>
>>>
>>>      On 7/5/2012 4:36 PM, Shawn Willden wrote:
>>>
>>>          I think this is a question for tahoe-dev.
>>>
>>>          On Thu, Jul 5, 2012 at 4:15 PM, Brad Rupp <bradrupp at gmail.com
>>>          <mailto:bradrupp at gmail.com>
>>>          <mailto:bradrupp at gmail.com <mailto:bradrupp at gmail.com>>> wrote:
>>>
>>>               Greetings VG2 friends,
>>>
>>>               I have a question about object health in Tahoe.  If I run two
>>>               repairs, one right after another, the second repair quite
>>>          often has
>>>               unhealthy objects.  I have not backed up any files to the
>>> grid
>>>               between these two repairs.  I would expect the second
>>>          repair to not
>>>               have any unhealthy objects.
>>>
>>>               I am running the following command:
>>>
>>>               ~/tahoe/bin/tahoe deep-check --repair --verbose my-alias:
>>>
>>>               The output from repair #1:
>>>
>>>               repair successful
>>>               done: 11801 objects checked
>>>                 pre-repair: 11725 healthy, 76 unhealthy
>>>                 76 repairs attempted, 76 successful, 0 failed
>>>                 post-repair: 11801 healthy, 0 unhealthy
>>>
>>>               The output from repair #2:
>>>               done: 11801 objects checked
>>>                 pre-repair: 11789 healthy, 12 unhealthy
>>>                 12 repairs attempted, 11 successful, 1 failed
>>>                 post-repair: 11800 healthy, 1 unhealthy
>>>
>>>               As you can see, the first repair found and fixed 76 unhealthy
>>>               objects. The second repair, approximately 12 hours later,
>>>          found 12
>>>               unhealthy objects and fixed 11 of them.
>>>
>>>               Why would the second repair find 12 unhealthy objects?  I
>>>          would have
>>>               expected it to find 0 unhealthy objects given that the
>>>          first repair
>>>               was performed only 12 hours earlier.
>>>
>>>               This is just one repair run out of many.  I can
>>>          consistently get
>>>               similar results.  I guess the deeper question is are the
>>>          objects
>>>               stored in Tahoe safe?  Or when I really need them due to a
>>>               catastrophic event will I lose a handful of objects due to
>>>          this?
>>>
>>>               Regards,
>>>
>>>               Brad
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>>>
>>>
>>>          --
>>>          Shawn
>>>
>>>
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>>>
>>> --
>>> Shawn
>>>
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