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From horschi <hors...@gmail.com>
Subject Re: auto_bootstrap=false broken?
Date Tue, 04 Aug 2015 18:40:36 GMT
Hi Jonathan,

unless you specify auto_bootstrap=false :)

kind regards,
Christian

On Tue, Aug 4, 2015 at 7:54 PM, Jonathan Haddad <jon@jonhaddad.com> wrote:

> You're trying to solve a problem that doesn't exist.  Cassandra only
> starts serving reads when it's ready.
>
> On Tue, Aug 4, 2015 at 10:51 AM horschi <horschi@gmail.com> wrote:
>
>> Hi Robert,
>>
>> sorry for the confusion. Perhaps write_survey is not my solution
>> (unfortunetaly I cant get it to work, so I dont really know). I just
>> thought that it *could* be my solution.
>>
>>
>> What I actually want:
>> I want to be able to start a new node, without it starting to serve reads
>> prematurely. I want cassandra to wait for me to confirm "everything is ok,
>> now serve reads".
>>
>>
>>
>> Possible solutions so far:
>>
>> A) When starting a new node with auto_bootstrap=false, then I get a node
>> that has no data, but serves reads. In my opinion it would be cleaner if it
>> would stay in a joining state where it only receives writes.
>>
>> B) Disabling join_ring on my new node does nothing. The new node will not
>> have a token. I cant see it in "nodetool status". Therefore I assume it
>> will not receive any writes.
>>
>> C) write_survey unfortunetaly does not seem to work for me: My new node,
>> which I start with survey-mode, gets writes from other nodes and shows as
>> "joining" in the ring. Which is good! But does not get a schema, so it
>> throws exceptions when receiving these writes. I assume its just a bug in
>> 2.0.
>>
>>
>>
>>
>> Disclaimer: I am using C* 2.0, with which I can't get the desire
>> behaviour (or at least I don't know how).
>>
>> kind regards,
>> Christian
>>
>>
>>
>>
>> On Tue, Aug 4, 2015 at 7:12 PM, Robert Coli <rcoli@eventbrite.com> wrote:
>>
>>> On Tue, Aug 4, 2015 at 6:19 AM, horschi <horschi@gmail.com> wrote:
>>>
>>>> I would like to separate these steps:
>>>> 1. assign tokens
>>>> 2. have the node in a joining state, so that I can copy in data
>>>> 3. mark the node as ready
>>>>
>>>
>>>
>>>> Did anyone ever use write_survey for such a partial bootstrapping?
>>>>
>>>
>>> What you're asking doesn't make sense to me.
>>>
>>> What does "partial bootstrap" mean? Where are you getting the data from?
>>> How are you "copying in data" and why do you need the node to be "in a
>>> joining state" to do that?
>>>
>>> https://issues.apache.org/jira/browse/CASSANDRA-6961
>>>
>>> Explains a method by which you can repair a partially joined node. In
>>> what way does this differ from what you want?
>>>
>>> =Rob
>>>
>>>
>>

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