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I'm a student of big data. I'm coming to you today for a question about the high availability of HDFS using Zookeeper. I am aware that there has already been bcp of topic dealing with this subject, I have read a lot of them already. It's already been 15 days that I've been browsing the forums without finding what I'm looking for (maybe I'm not looking in the right place too ;-) )

I have followed the procedure three times here: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html.

I may have done everything right, but when I kill one of my namenodes, none of them take over.

My architecture is as follows: - 5 VM - VM 1,3 and 5 are namenodes - VMs 1 to 5 are datanodes.

I launched my journalnodes, I started my DFSZKFailoverController, I formatted my first namenode, I copied with -bootstrapStandby the configuration of my first namenode to the 2 others and I started my cluster.

Despite all this and no obvious problems in the ZKFC and namenode logs, I can't get a namenode to take over a dying namenode.

Does anyone have any idea how to help me?

Many thanks for your help :)

zoo.cfg

I am trying configure Hadoop in pseudo-distributed mode. start-dfs.sh works perfectly. jps gives the following output (starts all the daemons properly):

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I'm working on a contribution to an open-source project. I have a branch with my stuff that I have pushed to my GitHub repository, and I can see it there (https://github.com/sedulam/CASSANDRA-13990). I'm pulling directly from the project source repository.
However, when I do git remote show origin it shows as stale:

I use Gitbox as my version control tool on MAC OSX. When using the app, I see an odd image next to the author name. For example, this is the image I am referring to:

( This image is just an example. I am not showing the actual photo I see. The concept is the same )

The interesting part is that I was under the impression that the image should be fetched from "GitHub", but it seems it is fetched elsewhere as my GitHub image is significantly different. The photo is odd enough that I am confused wrt to it's origin.

Where is this image loaded from in Gitbox?

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I am creating one project using Twilio framework for creating the conference room, I integrated framework manually as guided in Twilio documents link "https://www.twilio.com/docs/api/video/ios" its working fine able to create room and everything working fine but when trying to push the file to GitHub its stuck with compression error. it's not Github problem as I am able to push related files (View Controller changes) and also framework size is 153MB can this be an issue. Screenshot attached with the error message error message while pushing code Twilio framework files

Edit I have also tried with git commond line. Problem is twilio exceeds GitHub's file size limit of 100.00 M Is there any other way I can add twilio framework or can I remove unwanted files and then just drag and drop required files?

I am using Xcode 8.3.3 and Gitbox and Twilio version1.x