mirr | Repo for MIRR Workshop Heroku app | Learning library
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Repo for MIRR Workshop Heroku app
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QUESTION
Was trying to upgrade mirror maker 1.0 to mirror maker 2.0 and observed that on shutting down mirror maker 1.0 and starting mirror maker 2.0 the consumer starts getting messages from the beginning(duplicates). Found this post highlighting the same issue.
a. How to pass the consumer group name
in mirror maker 2.0 to keep the same consumer group name
as being used in mirror maker 1.0?
b. How to configure the auto.offset.reset
property in mirror maker 2.0?
ANSWER
Answered 2020-Dec-17 at 19:00a) You can't directly reuse the consumer group from MM1 with MM2 because MM2 does not use a consumer group, it's a Kafka Connect connector.
b) auto.offset.reset
is not currently configurable in MM2. It will be configurable in the next release, 2.7.0, which is expected to release very soon (as a Dec 17, a vote on the release candidate is on-going).
From 2.7.0, it will be configurable using .consumer.auto.offset.reset
or consumer.auto.offset.reset
in your configuration.
QUESTION
I have a table that describes a list of products made for a given order, in this every row on this table has to have a an id of the product and the reason why it was purchased,
I would like to build a json response that amounts to an array of locations the ordered product is for, within that, an array of unique product codes and with that an array of reasons why that unique product was ordered.
I've only been able to get the topmost part of my query defined but the join and sub-select nature of the request is actually getting me in a bit of a fiddle. Is this kind of thing actually possible in plpgsql?
Additionally I'd like to join product_order.reason on product_order_reason.id and retrieve the longform_text inside the table associated with this row but I figure the bigger thing is to get the return at all and that's where i've been left stumped.
...ANSWER
Answered 2019-Apr-02 at 16:01Alright I think I have something for you. The idea is to build one of the arrays at a time and carry the necessary remaining info to the outer queries for further array building. You can add your constraints for quote_detail_quote_id
, location
, and product_id
to the innermost query's WHERE
clause.
SQLFiddle to show it in action.
This may take some studying:
QUESTION
I installed VM in Oracle VM VirtualBox manager and mounted /dev/sr0 and configured system.repo under /etc/yum.repos.d as below.
...ANSWER
Answered 2017-Mar-07 at 00:34Ideally, from your virtualBox, do yum search epel
, and then yum install epel-release
.
If epel is not available from yum
, in your case, do:
rpm -ivh epel-release-latest-6.noarch.rpm
The above one of the steps will make the EPEL repo installed properly.
The repo's name will be epel.repo, like this:
QUESTION
Based on the mirror example in three.js, I have recreated a good old praxinoscope "movie projector", where a column of mirrors reflect a short sequence of images to create the illusion of movement.
In version 84 of three.js, this works quite well.
Example using v84: https://codepen.io/Sphinxxxx/pen/eEbjba
In version 85 however, there were some changes to Mirror.js, and in later versions all the mirrors (8 mirrors in this case) make the praxinoscope really slow (low FPS).
Example using v87: https://codepen.io/Sphinxxxx/pen/vJvozR
I suspect the slow performance has to do with a lot of recursive calls and unneeded rendering starting with calls to a onBeforeRender()
function from Mirror.js
. Stacktrace:
If you look at the code, mirrors are created and added in the addMirrorAndImage()
function. Is there a better way to add mirrors, or some other trick that will give the same performance as the older (pre v85) version?
ANSWER
Answered 2017-Nov-02 at 01:26Fixed in v88 (Mirror
renamed to Reflector
): https://codepen.io/Sphinxxxx/pen/dZYKwP
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