databricks: check if the mountpoint already mounted

Try this:

def sub_unmount(str_path):
    if any(mount.mountPoint == str_path for mount in dbutils.fs.mounts()):
        dbutils.fs.unmount(str_path)

sub_unmount('/mnt/flightdata')

Result:

/mnt/flightdata has been unmounted.

Verify with this:

dbutils.fs.ls("/mnt/")

Inspired by this: https://forums.databricks.com/questions/8103/graceful-dbutils-mountunmount.html

Open a new cell in Databricks notebook and write the below command:

%fs mounts

As an output, you will get mountpoint, path, and the encryption type.

How to check if the mount point is already mounted before mount in databricks python ??

You can use the below cmdlet to check if the mount point is already mounted before mount in databricks python.

%fs ls dbfs:/mnt

Example: I have two mount points attached to the DBFS and the results as shown as follows.

OR

You can use the below cmdlet to check if the mount point is already mounted before mount in databricks python.

dbutils.fs.ls('/mnt/')

Hope this helps.