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Posted to user@zookeeper.apache.org by Jason Rosenberg <jb...@squareup.com> on 2016/03/15 18:15:34 UTC
issue with read-only observer nodes
All,
I just filed this JIRA:
https://issues.apache.org/jira/browse/ZOOKEEPER-2389
It seems that read-only observer nodes don't properly transition into
read-only mode, they fail load any of their synced log data (but if you
restart them in read-only mode, they do read the synced data).
This is with version 3.4.8.
Is this a known issue? Or an expected behavior?
It seems like read-only observers would be relatively unusable with the
current behavior....
Am I missing something? Are people in general using read-only observer
nodes?
Thanks,
Jason
Re: issue with read-only observer nodes
Posted by Flavio Junqueira <fp...@apache.org>.
Thanks, Jason. If you have time and can work on a patch, I can work with you.
-Flavio
> On 16 Mar 2016, at 14:27, Jason Rosenberg <jb...@squareup.com> wrote:
>
> Ok,
>
> Let me know if I can help.
>
> Thanks,
>
> Jason
>
> On Wed, Mar 16, 2016 at 5:22 AM, Flavio Junqueira <fp...@apache.org> wrote:
>
>> Hi Jason,
>>
>> It does sound like a bug and I'm not aware of a fix. We should look into
>> it.
>>
>> -Flavio
>>
>>> On 15 Mar 2016, at 17:15, Jason Rosenberg <jb...@squareup.com> wrote:
>>>
>>> All,
>>>
>>> I just filed this JIRA:
>>> https://issues.apache.org/jira/browse/ZOOKEEPER-2389
>>>
>>> It seems that read-only observer nodes don't properly transition into
>>> read-only mode, they fail load any of their synced log data (but if you
>>> restart them in read-only mode, they do read the synced data).
>>>
>>> This is with version 3.4.8.
>>>
>>> Is this a known issue? Or an expected behavior?
>>>
>>> It seems like read-only observers would be relatively unusable with the
>>> current behavior....
>>>
>>> Am I missing something? Are people in general using read-only observer
>>> nodes?
>>>
>>> Thanks,
>>>
>>> Jason
>>
>>
Re: issue with read-only observer nodes
Posted by Jason Rosenberg <jb...@squareup.com>.
Ok,
Let me know if I can help.
Thanks,
Jason
On Wed, Mar 16, 2016 at 5:22 AM, Flavio Junqueira <fp...@apache.org> wrote:
> Hi Jason,
>
> It does sound like a bug and I'm not aware of a fix. We should look into
> it.
>
> -Flavio
>
> > On 15 Mar 2016, at 17:15, Jason Rosenberg <jb...@squareup.com> wrote:
> >
> > All,
> >
> > I just filed this JIRA:
> > https://issues.apache.org/jira/browse/ZOOKEEPER-2389
> >
> > It seems that read-only observer nodes don't properly transition into
> > read-only mode, they fail load any of their synced log data (but if you
> > restart them in read-only mode, they do read the synced data).
> >
> > This is with version 3.4.8.
> >
> > Is this a known issue? Or an expected behavior?
> >
> > It seems like read-only observers would be relatively unusable with the
> > current behavior....
> >
> > Am I missing something? Are people in general using read-only observer
> > nodes?
> >
> > Thanks,
> >
> > Jason
>
>
Re: issue with read-only observer nodes
Posted by Flavio Junqueira <fp...@apache.org>.
Hi Jason,
It does sound like a bug and I'm not aware of a fix. We should look into it.
-Flavio
> On 15 Mar 2016, at 17:15, Jason Rosenberg <jb...@squareup.com> wrote:
>
> All,
>
> I just filed this JIRA:
> https://issues.apache.org/jira/browse/ZOOKEEPER-2389
>
> It seems that read-only observer nodes don't properly transition into
> read-only mode, they fail load any of their synced log data (but if you
> restart them in read-only mode, they do read the synced data).
>
> This is with version 3.4.8.
>
> Is this a known issue? Or an expected behavior?
>
> It seems like read-only observers would be relatively unusable with the
> current behavior....
>
> Am I missing something? Are people in general using read-only observer
> nodes?
>
> Thanks,
>
> Jason