Unsupported compression algorithm(). Use one of ('lzo', 'zlib', 'no')

phillxnet · February 14, 2018, 11:43am

@g6094199 Quick update.

and

Finally got around to having a quick look at this and I’ve now found a reliable reproducer and have thus created the following issue:

github.com/rockstor/rockstor-core

empty compression setting on imported pools blocks extra mount options

opened 11:30AM - 14 Feb 18 UTC

closed 01:17PM - 05 Mar 18 UTC

phillxnet

enhancement

Thanks to forum member g6094199 in the following thread for highlighting this is…sue. When a pool is imported it's default "Compression" is displayed as "Empty". While this default setting persists it is not possible to add "Extra mount options" as the following input validation error of the unchanged "Empty" compression setting is thrown: Unsupported compression algorithm(). Use one of ('lzo', 'zlib', 'no') This does not affect newly created pools that default to 'no' for compression and once an imported pool has it's compression set, subsequent attempts to add/edit "Extra mount options" succeeds: given associated validation checks pass. The issue author suggests that "None" or "OFF" (as per non editable system pool indicator) would be a better default setting indicator than “no”. And that these indicator should be consistent named. Please update the following forum thread with this issue's resolution: https://forum.rockstor.com/t/unsupported-compression-algorithm-use-one-of-lzo-zlib-no/4381

It is not exactly as you describe but once I get into it, now we have a reproducer, related triggers should also be fixed; hopefully.

And it seems that I was way off initially with:

Oh well .

I hope to have a look at this shortly as it folds into some larger issues I am in the process of addressing.