Checkpoint4 | A learning management app
kandi X-RAY | Checkpoint4 Summary
kandi X-RAY | Checkpoint4 Summary
A learning management app
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Top functions reviewed by kandi - BETA
- Save user profile .
- Check if user needs updating
- Create user registration .
- Store a newly created video .
- Get YouTube URL
- Log in user .
- Handle the login page .
- Run migrations .
- Show the videos .
- Create the password reset table .
Checkpoint4 Key Features
Checkpoint4 Examples and Code Snippets
Community Discussions
Trending Discussions on Checkpoint4
QUESTION
The code below ran perfectly well on the standalone version of PySpark 2.4 on Mac OS (Python 3.7) when the size of the input data (around 6 GB) was small. However, when I ran the code on HDInsight cluster (HDI 4.0, i.e. Python 3.5, PySpark 2.4, 4 worker nodes and each has 64 cores and 432 GB of RAM, 2 header nodes and each has 4 cores and 28 GB of RAM, 2nd generation of data lake) with larger input data (169 GB), the last step, which is, writing data to the data lake, took forever (I killed it after 24 hours of execution) to complete. Given the fact that HDInsight is not popular in the cloud computing community, I could only reference posts that complained about the low speed when writing dataframe to S3. Some suggested to repartition the dataset, which I did, but it did not help.
...ANSWER
Answered 2019-Dec-07 at 14:04I would try several things, ordered by the amount of energy they require:
- Check if the ADL storage is in the same region as your HDInsight cluster.
- Add calls for
df = df.cache()
after heavy calculations, or even write and then read the dataframes into and from a cache storage in between these calculations. - Replace your UDFs with "native" Spark code, since UDFs are one of the performance bad practices of Spark.
QUESTION
I am trying to return the first five checkpoint values from my object. I firstly, get all keys that contain checkpoint, testing against a regular expression. I am getting the wrong values and I know its because of the regex but not sure how to fix it. It seems to be getting to checkpoint5 then skipping to checkpoint10
...ANSWER
Answered 2019-Sep-19 at 23:43Simple adjustment fixes it.
QUESTION
I'm getting started with A-Frame and this is a very basic question. I checked a number of examples to draw a line and then a curve in A-Frame but they don't show up in the scene. I have a plane there that shows up correctly.
I can use document.querySelector('a-plane').object3D;
to get the plane but document.querySelector('a-curve').object3D;
returns undefined.
Here is a code sample:
...ANSWER
Answered 2017-Apr-28 at 21:41You need to import the JS component that provides . It's a community component.
QUESTION
everyone! I have a Neo4j database which contains information about visitors who visit a number of checkpoints at specific moments of time. visitors, visits and checkpoints are represented as nodes.
Each visitor is identified by his/her device MAC address, each checkpoint has a unique id.
Each visit node contains an EnterTime property, which is the time (num of millisec since 1970) when the visitor with some specific MAC address is first noticed near the respective checkpoint.
Note: the duration of a visit should be calculated as the difference between EnterTime of the next visit and the EnterTime of this visit. Each checkpoint may be visited more than once.
The database is created with this cypher query:
...ANSWER
Answered 2017-Apr-02 at 11:59I think what you are looking for is this:
QUESTION
everyone! I have a Neo4j database which contains information about visitors who visit a number of checkpoints at specific moments of time. visitors, visits and checkpoints are represented as nodes.
Each visitor is identified by his/her device MAC address, each checkpoint has a unique id.
Each visit node contains an EnterTime property, which is the time (num of millisec since 1970) when the visitor with some specific MAC address is first noticed near the respective checkpoint.
Note: the duration of a visit should be calculated as the difference between EnterTime of the next visit and the EnterTime of this visit.
My goal is to find some statistics about the visits, for example, 1) the average time of a visit by a specific visitor, 2) the average time of a visit to a specific store, 3) the most popular store (i. e. the store with the longest TOTAL time of visits 4) the most popular store (i. e. the store with the longest AVERAGE time of visits) etc.
The database is created with this cypher query:
...ANSWER
Answered 2017-Apr-01 at 13:42If you need to pass the result of the aggregation function of another aggregation function, do it through the WITH
. Something like this:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install Checkpoint4
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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