I can access as ec2_user, but somehow I do not have access to "export" folder to copy. How so?

[tsmith]

What am I missing?

qq: ec2_user does not seem to have access to xcalar export folder, what is the best way to access data and copy it out?
[ec2-user@ip-171-31-9-48 xcalar]$ pwd
/var/opt/xcalar
[ec2-user@ip-171-31-9-48 xcalar]$ ls
apps config dataflows export generation jupyterNotebooks kvs monitor recovery serdes sessions stats support targets udfs users Xdb
[ec2-user@ip-171-31-9-48 xcalar]$ ls export
ls: cannot open directory export: Permission denied

[mjoshi]

Hi Tiffany,

I think you mean ec2-user, and not ec2_user?

It looks like you are running a Xcalar cluster on an AWS instance. You need a way to know what Xcalar runs as. As simple way of doing that would be:

[ec2-user@ip-162-33-8-49 ~]$ ps -ef | grep usrnode | grep nodeId
xcalar   31119 31116  0 Jan19 ?        01:31:00 usrnode --nodeId 0 --numNodes 1 --configFile /etc/xcalar/default.cfg

This would show that my xcalar instance is running as "xcalar" which is usually a default user. Advanced users can change the default user.

Next step is to check what the export directory permission is.

[ec2-user@ip-162-33-8-49 ~]$ ls -ld /var/opt/xcalar/export
`drwx------. 7 xcalar xcalar 123 Jan 27 16:16 /var/opt/xcalar/export`

This would indicate that no one other than the user xcalar can access this directory. So how do you access this directory?

On an aws instance, you most likely show be able to do the following:

[ec2-user@ip-162-33-8-49 ~]$ sudo su xcalar
[xcalar@ip-162-33-8-49 ec2-user]$ 

[xcalar@ip-162-33-8-49 ec2-user]$ cd /var/opt/xcalar/export
[xcalar@ip-162-33-8-49 export]$ ls -l
total 4
drwxrwxrwx. 2 xcalar xcalar   28 Jan 24 21:12 gemini-1
drwxrwxrwx. 2 xcalar xcalar   23 Jan 19 05:22 apollo-2