data-fusion | data fusion in decentralized sensor networks
kandi X-RAY | data-fusion Summary
kandi X-RAY | data-fusion Summary
A collection of implementations of algorithms for data fusion in decentralized sensor networks and simulations to test and assess them.
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Top functions reviewed by kandi - BETA
- Fuse the mutual information
- Compute mutual mean
- Compute the mutual covariance matrix
- Compute the mutual information
- Run the process
- Estimate the mean and covariance
- Fuse fusion function
- Run Monte Carlo simulation
- Plots the mean squared error of the fusion algorithm
- Fuse the covariance function
- Compute the optimal likelihood criterion for a given covariance matrix
- Fuse the covariance matrix
- Optimizes the likelihood of a covariance matrix
- Plots the distances between two fusion algorithms
- Plots the results of the fusion algorithm
- Plot a process
data-fusion Key Features
data-fusion Examples and Code Snippets
Community Discussions
Trending Discussions on data-fusion
QUESTION
I wanted to replicate Mysql tables held in GCP Compute Engine to the GC BigQuery. I referred this document : https://cloud.google.com/data-fusion/docs/tutorials/replicating-data/mysql-to-bigquery. so I Decided to use GCP Data Fusion for the Job.
Everything works fine and the Data is replicated in Bigquery. So I was testing different datatype support for this Replication.
Where I come up with issue in this Replication Pipeline, So whenever I try to put the 'DATE' datatype Column for the Data fusion replication, the whole table (Which contain 'DATE' Column) doesn't show up in BigQuery
It Creates the table with schema same as source and 'Date' datatype also present in Bigquery, and I have use the same Date format as supported by BigQuery.
I also gone through Data fusion logs, It shows pipeline is Loading the data perfectly fine into BigQuery, Also catches the new rows added into Mysql Table from source Mysql DB with inserts and updates as well. But somehow rows are not getting into Bigquery.
Did anyone used Data fusion Replication with 'Date' column Datatype ? Is this issue with BigQuery or Data Fusion ? Do I need to provide any manual setting in the BigQuery ? Can anyone please provide inputs on this ?
...ANSWER
Answered 2021-May-04 at 02:10I used following schema which had Date field in it.
QUESTION
I know that there is many similar questions but I'm not able to find an answer to solve my issue.
I trying to connect Data Fusion to replicate a Cloud SQL for MySQL table. When trying to connect to the MySQL table I have the following error:
...ANSWER
Answered 2021-Apr-22 at 19:34Assuming you are using Cloud Data Fusion to just get data from CloudSQL MySQL to GCP
There are a few existing questions/docs that have been discussed in the past
- https://stackoverflow.com/a/56159101/661768
- Can't connect Cloud Data Fusion with Google Cloud SQL for PostgreSQL
- https://cloud.google.com/data-fusion/docs/how-to/reading-from-postgresql
If you are indeed trying to use Cloud Data Fusion's Replication feature to replicate your db tables then connecting to a private CloudSQL MySQL instance is not supported yet. Here is the corresponding OSS JIRA to follow up if you are looking for this - https://cdap.atlassian.net/browse/CDAP-17938
QUESTION
I managed to have MySQL tables replicated into BigQuery fairly easily by following this article on Cloud Data Fusion Replication. However, there's an issue with the DateTime columns. All the DateTime columns have been replicated into BigQuery using a 1970's date. Does anyone know how to fix this?
Here is the original MySQL data:
And here's the replicated data in BigQuery
ANSWER
Answered 2021-Apr-16 at 03:00I figured another way. You can simulate MySQL replication into BigQuery by making your own batch pipeline, then schedule that pipeline to run at the frequency you want. The MySQL setup is easy to do. Just follow the instructions to install the MySQL driver here. Then you setup your MySQL data source and your BigQuery Sink. The DateTime columns in MySQL should be marked as TimeStamps and their corresponding columns in BigQuery must be of type DateTime.
Finally, you can make a BigQuery Execution Action before the MySQL Source to fetch the id or time of the latest record you have replicated.
QUESTION
I'm trying to follow this article to replicate an on-prem MySQL database to BigQuery. I've setup everything needed up to the "navigate to the Replication page", but I can't find the replication page in the Cloud Data Fusion UI. Is this something I need to enable?
ANSWER
Answered 2021-Apr-06 at 13:14QUESTION
from CDAP documentation exists an HTTPS post-run plugin to trigger pipeline start based on the successful execution of another pipeline (Scheduling). I'm trying to use this functionality in GCP Data Fusion but the plugin even if installed (because I can see it from Control Center) seems to be not available.
I also tried to install manually the plugin HTTP Plugin v2.2.0 as stated in the documentation but has only sink and source action. Also if I try to use the plugin an error is displayed
HTTP Properties 1.2.0 (No widgets JSON found for the plugin. Please check the documentation on how to add.)
this error seems related to the fact that Data Fusion is trying to use version 1.2.0 (the one already installed) with properties of version 2.2.0.
Any suggestions on how to solve this issue?
Update
I can see the two vesions http-plugin from Control Center
but I cannot set the version
Problem about http plugin hasn't been solved but I found the existence of pipeline trigger to execute pipeline based on status of another pipeline, this feateure is only available with Enterprise edition.
...ANSWER
Answered 2020-Jul-13 at 17:35Depending on the version of the you Data Fusion instance, it may still be defaulting to the old version of the plugin. To select the new version of the plugin you should:
- Navigate to the Studio
- Hover your mouse over the HTTP plugin in the sidebar
- After a second or so, a box will appear with the plugin details. You will see the current version of the plugin and a button beside it that says "Change", click on this button. If you don't see this button that means you only have one version of the plugin in your instance.
- You will see a list of all the versions of the plugin in this instance, select the one you want. The version you select will be the new default version.
You should now be able to use v2.2.0 of the plugin.
QUESTION
I am trying to create a sample Pipeline in my Data Fusion instance, as part of my Project POC. I am using CDAP API for automate the pipeline creation. I am facing issue while calling below CDAP API in GCP,
curl -H "Authorization: Bearer $(gcloud auth print-access-token)" -w"\n" -X PUT "[My-GCP-Data-Fusion-Endpoint]/v3/namespaces/default/apps/MyPipeline" -H "Content-Type: application/json" -d @/home/saji_s/config.jason
The content in config.jason is,
{ "name": "MyPipeline", "artifact": { "name": "cdap-data-pipeline", "version": "6.0.0", "scope": "system" }, "config": { . . . "connections": [ . . . ], "engine": "mapreduce", "postActions": [ . . . ], "stages": [ . . . ], "schedule": "0 * * * *", }, "ui": { . . . } }
I am getting Error Like, " Error 400 (Bad Request)!!1 "
Could you please help me here, I just want to create a sample Pipeline in my Data Fusion instance, as part of my Project POC.
...ANSWER
Answered 2020-Mar-06 at 05:48The issue resolved, the issues was with the jason file and after preparing the correct jason file the scipt executed and the pipeline deployed successfully
QUESTION
I'm trying to deploy a pipeline in GCP Data Fusion. I was initially working on the free account, but upgraded in order to increase quotas as recommended in the following question seen here.
However, I am still unclear based on the accepted answer as to what specific quota to increase in GCE to enable the pipeline to run. Could someone either provide more clarity in the above linked question or respond here to elaborate on what in the IAM Quotas needs to be increased to resolve the issue seen here:
...ANSWER
Answered 2020-Jan-15 at 10:15The specific quota related to DISKS_TOTAL_GB
is the Persistent disk standard (GB)
as you can see in the Disk quotas documentation.
You can edit this quota by region in the Cloud Console of your project by going to the IAM & admin page => Quotas and select only the metric Persistent Disk Standard (GB).
QUESTION
I have created a Google Cloud Data Fusion instance, and per the documentation I am searching for the service account listed to add the additional role. However, this service account is nowhere to be found in the IAM of the project. Am I expected to create the service account or this should be done as part of creating the instance?
...ANSWER
Answered 2019-Jul-23 at 20:30The service account is created in the tenant project
associated to your Data Fusion instance (that's why the email suffix should be a random identifier + '-tp'). Therefore, you can't see it in your project but you can add the desired permissions in the IAM
tab.
QUESTION
I'm following the instructions in the Cloud Data Fusion sample tutorial and everything seems to work fine, until I try to run the pipeline right at the end. Cloud Data Fusion Service API permissions are set for the Google managed Service account as per the instructions. The pipeline preview function works without any issues.
However, when I deploy and run the pipeline it fails after a couple of minutes. Shortly after the status changes from provisioning to running the pipeline stops with the following permissions error:
...ANSWER
Answered 2019-Jun-29 at 16:45You are missing setting up permissions steps after you create an instance. The instructions to give your service account right permissions is in this page https://cloud.google.com/data-fusion/docs/how-to/create-instance
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Install data-fusion
You can use data-fusion like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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