-1, I would like to see a proposal on list where it will be permanently
available in the archives instead of being directed to a Google doc which
can be edited at any point in time.

This has been an incredibly difficult proposal to keep track of.

Mike

On Tue, Nov 23, 2021 at 6:09 AM Ishan Chattopadhyaya <
[email protected]> wrote:

> This proposal has passed with lazy consensus. We can proceed to the
> implementation phase.
> Thanks to everyone for feedback, esp. Gus for the patience.
>
> On Sun, Nov 21, 2021 at 2:24 PM Gus Heck <[email protected]> wrote:
>
>> Thanks for adding that :) and Thanks to Nobel for translating my ravings
>> :). Sorry about the acronym. Amusingly I had to look up gish gallop to
>> understand what you meant :) I can assure you that I will never gish gallop
>> you or anyone on the list, and I find such techniques repugnant. If I'm not
>> making sense, I'm likely covering ground too fast, skipping things that are
>> in my head but not yours, expressing too many tangents (when I start
>> nesting parentheses this is (usually) a sign I'm wandering too much), or I
>> am simply mistaken about something. Always feel free to ask me to explain!
>>
>> -Gus
>>
>> On Sun, Nov 21, 2021 at 12:17 AM Ishan Chattopadhyaya <
>> [email protected]> wrote:
>>
>>> Added both your suggestions to Google Docs for inline commenting and the
>>> SIP document at confluence. Thanks for the feedback.
>>>
>>> On Sun, Nov 21, 2021 at 10:28 AM Ishan Chattopadhyaya <
>>> [email protected]> wrote:
>>>
>>>> I'll add the lifecycle details to the document as well.
>>>>
>>>> On Sun, 21 Nov, 2021, 9:08 am Ishan Chattopadhyaya, <
>>>> [email protected]> wrote:
>>>>
>>>>> Hi Gus,
>>>>> Thanks for bringing it up again. Initially, I wasn't clear what you
>>>>> meant and mistook them for gish gallop.
>>>>>
>>>>> These were the things I am/was confused about (Noble explained it to
>>>>> me what you mean):
>>>>> - adherence to DRY via zk
>>>>> - runtime config info should come from zk
>>>>> - add dynamic features
>>>>> - same interaction patterns for consulting config values.
>>>>>
>>>>> Now, after Noble's help, I think I understand your motivations.
>>>>> - DRY = Don't Repeat Yourself ;-)
>>>>> - You're suggesting that we have a standard way to have role specific
>>>>> configurations (in ZK), so that a new role added later can access the
>>>>> configurations in a standard way
>>>>>
>>>>> This is a very good suggestion, and makes complete sense now. This was
>>>>> definitely a missing piece!
>>>>>
>>>>> Here's a proposal to address that (adding it to Google Docs:
>>>>> https://docs.google.com/document/d/1hijvM1WX9u2TOUdLEkFYVCofLeJlv2MRZqe-ncobJVw/edit
>>>>> ):
>>>>>  - Per Role ZNode
>>>>>  - Every role's ZNode to hold configuration data (this is the key
>>>>> addition that you're asking for, IIUC)
>>>>>  - Children of role ZNodes to be list of ephemeral solr nodes
>>>>>
>>>>> We can iterate over this on the Google Docs (internal representation
>>>>> ZK section) with inline commenting if we need to.
>>>>>
>>>>> Please let us know how that sounds.
>>>>> Regards,
>>>>> Ishan
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Nov 21, 2021 at 4:49 AM Gus Heck <[email protected]> wrote:
>>>>>
>>>>>> It is difficult to track everything in this thread for sure.
>>>>>> Specifically, I don't feel my email of Wed, Nov 17, 7:43 PM (EST) has 
>>>>>> been
>>>>>> addressed or responded to except for one difference of opinion with Jan 
>>>>>> on
>>>>>> whether or not we should prohibit the notion of any role ever changing at
>>>>>> runtime.
>>>>>>
>>>>>> Note that I made a specific proposal for an addition to the sip,
>>>>>> regarding start up lifecycle and adherence to DRY via zk, in the 
>>>>>> (probably
>>>>>> not clearly expressed) hope that we can move to a general overall
>>>>>> application principle that at runtime config info should come from zk. If
>>>>>> we follow such a principle, we will always be in a position to add 
>>>>>> dynamic
>>>>>> features without significant rework, and all code could hopefully reuse 
>>>>>> the
>>>>>> same interaction patterns for consulting config values.
>>>>>>
>>>>>> Neither item is addressed in the SIP currently.
>>>>>>
>>>>>> Also I had put that out there as a single item so it could be focused
>>>>>> on (simplifying the discussion I hope), and depending on how discussion
>>>>>> proceeds, I may have other follow on items.
>>>>>>
>>>>>> -Gus
>>>>>>
>>>>>> On Sat, Nov 20, 2021 at 8:45 AM Ishan Chattopadhyaya <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>>
>>>>>>> On Fri, 19 Nov, 2021, 7:03 pm Ilan Ginzburg, <[email protected]>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Is the request here for everybody to express again the concerns
>>>>>>>> already expressed in this email thread and not addressed?
>>>>>>>>
>>>>>>>
>>>>>>> I think the expectation now (after we've expressed our intention to
>>>>>>> reach a lazy consensus) is that if someone wants to block this SIP from
>>>>>>> adoption, then to put forward the objections. Sort of like a veto.
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> I suggest instead the authors review the thread, match expressed
>>>>>>>> concerns with how the concern was addressed (or not addressed) and
>>>>>>>> provide an exhaustive list.
>>>>>>>>
>>>>>>>
>>>>>>> I've summarized most of the discussion in the SIP document. If you
>>>>>>> feel I could do a better job with it, please help me with areas of
>>>>>>> improvement.
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> This proposal in its current form (data and overseer roles) doesn't
>>>>>>>> offer much that can't be reasonably achieved by other means. I'd
>>>>>>>> find
>>>>>>>> much more value in making sure what is done now is a solid
>>>>>>>> foundation
>>>>>>>> for the future.
>>>>>>>>
>>>>>>>
>>>>>>> Fair enough, I understand your perspective. Thanks for your feedback.
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> Ilan
>>>>>>>>
>>>>>>>> On Thu, Nov 18, 2021 at 11:24 PM Noble Paul <[email protected]>
>>>>>>>> wrote:
>>>>>>>> >
>>>>>>>> > After so many back and forth mails, I just can't say who has an
>>>>>>>> outstanding concern and if they are already addressed or not. I think 
>>>>>>>> the
>>>>>>>> Google doc would help us get clarity on that. Please take a moment to 
>>>>>>>> give
>>>>>>>> your inputs
>>>>>>>> >
>>>>>>>> > On Fri, Nov 19, 2021, 9:18 AM Ishan Chattopadhyaya <
>>>>>>>> [email protected]> wrote:
>>>>>>>> >>
>>>>>>>> >> Apologies, the vote hasn't passed formally and I was under some
>>>>>>>> confusion on the process.
>>>>>>>> >>
>>>>>>>> >> I'd like to proceed with a lazy consensus and proceed to the
>>>>>>>> implementation phase now.
>>>>>>>> >>
>>>>>>>> >> However, I would appreciate it if someone wants to bring out any
>>>>>>>> outstanding concerns about the SIP document.
>>>>>>>> >>
>>>>>>>> >> To facilitate in-line comments, here's a temporary Google Docs
>>>>>>>> version of this document.
>>>>>>>> >>
>>>>>>>> https://docs.google.com/document/d/1hijvM1WX9u2TOUdLEkFYVCofLeJlv2MRZqe-ncobJVw/edit?usp=sharing
>>>>>>>> >> (I shall copy changes back to confluence eventually)
>>>>>>>> >>
>>>>>>>> >> Thanks and apologies again regarding the confusion with the
>>>>>>>> voting,
>>>>>>>> >> Regards,
>>>>>>>> >> Ishan
>>>>>>>> >>
>>>>>>>> >> On Thu, Nov 18, 2021 at 9:50 PM Ishan Chattopadhyaya <
>>>>>>>> [email protected]> wrote:
>>>>>>>> >>>
>>>>>>>> >>> The SIP passed the voting phase. Thanks for all for the
>>>>>>>> feedback and insights.
>>>>>>>> >>> Looking forward to your collaboration and reviews as we
>>>>>>>> implement this.
>>>>>>>> >>>
>>>>>>>> >>> On Thu, Nov 18, 2021 at 9:42 PM Ishan Chattopadhyaya <
>>>>>>>> [email protected]> wrote:
>>>>>>>> >>>>
>>>>>>>> >>>> > It's fine if we don't provide any ability for runtime
>>>>>>>> modification of roles at this time but I'm leery of precluding it in 
>>>>>>>> the
>>>>>>>> future.
>>>>>>>> >>>>
>>>>>>>> >>>> In future, the necessity for such a facility can dictate our
>>>>>>>> course of action. We cannot lay down rules cast in stone for 
>>>>>>>> functionality
>>>>>>>> that we can't foresee yet.
>>>>>>>> >>>>
>>>>>>>> >>>> On Thu, Nov 18, 2021 at 9:40 PM Ishan Chattopadhyaya <
>>>>>>>> [email protected]> wrote:
>>>>>>>> >>>>>
>>>>>>>> >>>>> Thanks Jan, I added both those points to the SIP document in
>>>>>>>> the Notes section.
>>>>>>>> >>>>>
>>>>>>>> >>>>> On Thu, Nov 18, 2021 at 7:18 PM Jan Høydahl <
>>>>>>>> [email protected]> wrote:
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> 18. nov. 2021 kl. 01:43 skrev Gus Heck <[email protected]>:
>>>>>>>> >>>>>>
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> 2) Roles will not be checked by loading config from disk or
>>>>>>>> caching disk config in memory. (zk ONLY source of truth)
>>>>>>>> >>>>>>
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> It sounds a bit backward for a local node to first parse
>>>>>>>> solr.node.roles, determine its local set of roles, then publish them to
>>>>>>>> Zookeeper, and then read back its own roles from ZK.
>>>>>>>> >>>>>> Code that only needs to determine "Do I have the XXX role?"
>>>>>>>> or find out "What roles do I have" should be able to fetch the (static)
>>>>>>>> roles from some roles utility class without consulting ZK.
>>>>>>>> >>>>>> Code that needs to check what nodes have a certain role
>>>>>>>> (such as placement) would obviously need ot consult ZK.
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> Perhaps the SIP should also state some Non-goals or
>>>>>>>> assertions such as
>>>>>>>> >>>>>> * Roles are static and immutable (also in zk) for the entire
>>>>>>>> life cycle of a node
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> I also think we should state that the bar for adding new
>>>>>>>> roles should be high so it is not abused as any other tag or label for 
>>>>>>>> any
>>>>>>>> tiny feature. It should be reserved for functionality that may benefit 
>>>>>>>> from
>>>>>>>> a dedicated set of nodes. That may be clear already, but you never 
>>>>>>>> know...
>>>>>>>> >>>>>>
>>>>>>>> >>>>>> Jan
>>>>>>>>
>>>>>>>>
>>>>>>>> ---------------------------------------------------------------------
>>>>>>>> To unsubscribe, e-mail: [email protected]
>>>>>>>> For additional commands, e-mail: [email protected]
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> --
>>>>>> http://www.needhamsoftware.com (work)
>>>>>> http://www.the111shift.com (play)
>>>>>>
>>>>>
>>
>> --
>> http://www.needhamsoftware.com (work)
>> http://www.the111shift.com (play)
>>
>

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