Is there a way to keep overgoal chunks until free space falls below a threshold?

[dagelf]

Say you had a chunkserver or two missing, and a lot of data got replicated... now you re-add those chunkservers. Work has already been done and your data is now more secure... why undo it? Can you keep it without having to run a script to manually re-goal each chunk? And without having to wear your drives by increasing the goal on other files.

[dagelf]

The reason this is an issue, is that if a chunkserver goes down, chunks get replicated, which is good... but then when the chunkserver comes back up, the chunks get deleted- and while this is ongoing, throughput drops to below 1MB/s presumably because of RAM/CPU constraints on my chunkservers. Putting chunkservers that has gone down in maintenance mode when they are restored, temporarily alleviates the problem.