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• I have searched in the issues and found no similar issues.

What would you like to be improved?

In PR of #254, the ZSTD is introduced in uniffle. But in this implementation, it only support the jobs of spark3.x .

So we should make it compatible with the spark 2.x

How should we improve?

We should do some compatibility work for the spark 2.x and 3.x ZSTD version

Are you willing to submit PR?

• Yes I am willing to submit a PR!