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By enabling reconstruction to decommissioning datanode, the speed increased by 12 times on a small-scale cluster with only 100 machines dedicated to storing EC data. I think in prodcution cluster with thousands of clusters, there will be hundreds of times growth.
How was this patch tested?
unit test and test in cluster
For code changes:
Support decommissioning DataNode by EC block reconstruction.
liveBusyBlockIndices rename to liveAndDecommissioningBusyIndices.
remove excludeReconstructedIndices which is duplicate with liveAndDecommissioningBusyIndices
add new liveAndDecommissioningBusyIndices which is used when reconstruct the busy decommissioning block.
We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you feel like this was a mistake, or you would like to continue working on it, please feel free to re-open it and ask for a committer to remove the stale tag and review again.
Thanks all for your contribution.
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Description of PR
By enabling reconstruction to decommissioning datanode, the speed increased by 12 times on a small-scale cluster with only 100 machines dedicated to storing EC data. I think in prodcution cluster with thousands of clusters, there will be hundreds of times growth.
How was this patch tested?
unit test and test in cluster
For code changes:
liveBusyBlockIndices
rename toliveAndDecommissioningBusyIndices
.excludeReconstructedIndices
which is duplicate withliveAndDecommissioningBusyIndices
liveAndDecommissioningBusyIndices
which is used when reconstruct the busy decommissioning block.