Problem in visualizing Qiime2 qzv artifact in chrome browser

(sreesankar) #1

I am having difficulty in visualizing the Qiime 2 qzv artifact in chrome browser. I am running Qiime2 in a Cent OS based server which is a headless server. The qiime demux summarize command was used to obtain the qzv file. I copied the qzv artifact to my local windows machine then open chrome and went to for visualization, where I dragged and dropped this artifact in the drag and drop and area. I got the following error:

Error: Corrupted zip or bug: expected 36 records in central dir, got 0

I ran the same commands and used same files in Qiime2 virtual box. The qzv artifact created in the virtual box did not show any error when I dragged and dropped that file in the drag and drop area. The qiime2 virtual box is making my windows machine very slow. I would really like to continue my analysis in the server. could you please help me to resolve this problem

(Nicholas Bokulich) #2

sounds like the file is corrupted. Your network connection may have become disrupted when transferring from the server to your local machine.

(sreesankar) #3

No. I am using a LAN connection and I have double checked whether the transfer was disrupted. Both the time file transfer was successful. I have also seen the file transfer in detail and it does not show any file disruption during transfer.

(Nicholas Bokulich) #4

check the md5sum at both ends. This file is being corrupted somehow.

(sreesankar) #5

Thank you for the reply. I have checked the file size before and after copying. I got both the file size same. In server and windows client machine. Does that confirms that my data isn’t lost?

(Nicholas Bokulich) #6

No, that does not confirm. Use md5sum to check.

(sreesankar) #7

I did the md5sum check as you told I got different md5 values.
in linux : 8d581e7c711f4afcd5ebae0fc1dffb4e
in windows: fd3ba598a56ebcec54435bab1b863348

I can’t understand why it is like this when I download the file from the server everything looks normal. Is there any better way to download the files from server? I am using secure FX to download the files

(Nicholas Bokulich) #8

Use scp to transfer. That should do it!

(sreesankar) #9

Hi thank you for the help. That suggestion resolved the problem