21 окт. 2020 г.
Hello Gentlemen,\n\nThis course was very helpful foe me. It enhanced my knowledge about Big Data Integration. Thank you so much for providing me such important knowledge. Thank you once again.
24 сент. 2016 г.
Best course taking into account the first three. Good material, more in depth than the other ones. Very well explained. Useful to get a sense of various interesting topics and orientative.
автор: John R•
9 июля 2017 г.
I was really disappointed by this course, having found the previous courses interesting and helpful. I found the standard of teaching and explanation was poor, and difficult to follow, and the exercises, especially the Mongo DB and Spark remarkably difficult to work out with very little help or support given.
With Spark 2.0 and tools which run over Mongo to provide a SQL interface I'd challenge the usefulness of learning interfaces which are well out of date. We should now be learning SQL interfaces over both Mongo and Spark. The existing interfaces are difficult to just get in the way.
автор: JOHN G•
2 июня 2020 г.
While there was a lot of useful information in this course at a "survey" level, the slides, documentation, and content in no way aligned with the level of knowledge needed to execute the assignments. That, coupled with the utter lack of maintenance on this course which resulted in MANY issues with incompatible tool versions and therefore code crashes, made this an extremely frustrating experience. If this had been my first Coursera experience it would have been my last as well.
IF YOU ARE GOING TO PROVIDE COURSES MAINTAIN THEM AND MONITOR THEM!
автор: Rafif S•
14 июня 2020 г.
This was one of my favorite courses. i learned a lot of new things however the reason i am rating it low has to deal with the whole section on the hands-on; which in my opinion is the most important part. the instructions on downloading and running Anaconda was not clear and i had some many error messages that i was not able to do properly any of the assignments. besides no staff support at all. the professors are great and their explanation fantastic. should revisit the whole hands on and provide more staff support. a pity!
автор: Wayne O•
30 сент. 2020 г.
Most of the course content is similar to the rest of the specialization. Week 6, however, is a sudden spike in difficulty using mongoDB and Spark without any explanation of how to use the advanced capabilities of either language. The last two assignments were nearly impossible for me to do while googling how mongodb and pyspark work. Either would have been fine if the course focused on one or two tools in depth, but not with the survey style that it uses.
автор: Ярослав Ф•
4 мая 2020 г.
В курсе не рассматриваются базовые операторы MongoDB, например, обращение к данным в подструктуре. Некорректная информация по поводу установки нужных программ для работы в 6 неделе. Никак не мог подключиться к Jupyter и использовать PySpark. Преподаватели не общаются со студентами и отказываются обьяснить. Лекции интересные, но расплывчатые. Так же есть реклама приложения, что само по себе уже не красиво.
автор: Allyson D d L•
19 нояб. 2021 г.
The content is superficial but interesting. I liked the classes about MongoDB and Spark. The bad thing is that I couldn't use any of tools in Cloudera VM. I coudn't use Spark to answer the last quiz. I tried to install Spark in my personal computer but it didn't work too. I used PostgreSQL and MongoDB in my PC too. I was very disappointed because of that. I couldn't practice Spark as I wanted.
29 окт. 2020 г.
I'm very satisfied with the knowledge I have gained by taking this course, but I'm VERY DISAPPOINTED in the practical tasks (Hands on tasks), because the tools used in analysis are not up to date - they are not working when you follow the hands on task guide. You can get them to work through researching forums for help, but still it's unacceptable because you have to pay for this course.
автор: Stefan B•
7 мар. 2022 г.
The information learned in this course is good and helpful. However, the practical hands-on won't work most of the time. The provided virtual machine is so outdated that downloading required installations fail. If you do not have other options to do the hands-on, you will not be able to complete the course and get a certificate because results of the hands-on are part of the quizes.
автор: Marek K•
10 июня 2021 г.
The course content is good - however the VM provided needs alot of work to get it working - i have spent weeks over this specialisation just trying to get software installed and working - thankfully i know Linux and work in IT . I think if the software was refreshed to something in support and not behind a paywall on the most part this would be great.
автор: Karen H•
31 мая 2021 г.
The course and specialization is overall good, however I encountered lots of technical challenges during the completion of the tasks.
First, Centos 6 is not supported and lots of difficulties do upgrade some staff. Couldn't connect pyspark with Jupyter Notebook.
Guys, you need either upgrade the materials or remove it from Coursera .
автор: Stephen L•
23 июля 2017 г.
Good material and challenging assignments, but too many technical issues with setup instructions and spark context. You have to be a cloudera expert to solve the issues. There does not seem to be any support from the course instructors or assistants. The setup.sh files are out of date with the spark updates.
автор: Chew S J (•
17 июля 2018 г.
The contents seem to be fine at the beginning but the assignment on Week 6 was just way too much for me. The assignment lacks clear guideline and perhaps, lecture contents need to be updated, or the assignment task needs to be revised.
It took me two weeks to complete the last week of the course itself.
автор: Swetha K•
25 мая 2020 г.
Too much of theory, and very little practical knowledge is taught. But at the end of the course, the quiz requires hands-on knowledge on Python & Spark. How is it expected that we can solve those questions without prior knowledge, I do not understand. Disappointed with the course content.
автор: Polla T•
16 сент. 2017 г.
The final pyspark project was too hard for me and I don't exactly understand without massive python knowledge how can this be solvable, while the weeks lessons were way too easy compare to this final project.
This whole course was a little bit too superficial, without comprehensive tasks.
автор: Christopher R•
27 июня 2017 г.
Interesting material and good lectures however some of the hands-on work was difficult / impossible to complete due to issues with SparkSQL, which have gone unanswered in the discussion forums, so had to export the data and use other tools to perform those analyses.
автор: Ferran G F•
9 янв. 2020 г.
Low score because professor team/staff seemed to completely ignore discussion forums. A lot of participants have had problems running shell scripts and other setup instructions that are necessary to perform some tasks, and their posts have been ignored.
автор: Robert H•
8 сент. 2017 г.
Tedious exercises through VM where instructions oftentimes do not work out of the box. It is a hassle to download the slides in small sets and their design awful. Definitely one of the worse courses I have taken.
автор: Klaas v S•
19 мая 2020 г.
The supplied tools are broken in hard to debug ways, as is evident from the discussion forums, where literally thousands of questions are raised. Somebody should do sentiment analysis on these forums, I suppose.
автор: Sergey K•
8 окт. 2016 г.
Quizes are inconsistent with given dataset. Questions are bad: i.e. what is the difference between "number of distinct countries mentioned" and "number of countries mentioned in tweets".
автор: Enrique C M d C•
19 нояб. 2017 г.
La virtual box de cloudera va muy lenta y es imposible hacer los ejercicios de manera fluida y satisfactoria.
El usuario y la contraseña de Splunk que se proporcionan estan caducados
автор: Erwin v R•
24 дек. 2016 г.
I miss a proper buildup from the theory to the practical exercises. Especially the last quiz I found very difficult based on the limited number of exercises presented upfront.
автор: Brian S•
23 мая 2019 г.
Practice activities files are outdated and a lot of the installation of downloaded tools requires manual fixing, there is no support at all from the course publishers.
автор: Luis E M•
9 апр. 2020 г.
Links do not work and you must spent a lot of time in the Discussion Forum to know how to run the programs.
Instructions for the quiz are not clear and confused
автор: Matt M•
17 нояб. 2016 г.
I had many problems with the final two programming assignments with running Spark in the VM and there isn't a lot of help available online.
автор: Richard E A M•
21 апр. 2017 г.
The materials explaining the course are too poor. This is a core course in the specialization.
The quizzes are out of the material's league