daimin created HDFS-16510:
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Summary: Fix EC decommission when rack is not enough
Key: HDFS-16510
URL: https://issues.apache.org/jira/browse/HDFS-16510
Project: Hadoop HDFS
Issue Type: Bug
Components: block placement, ec
Affects Versions: 3.3.2, 3.3.1
Reporter: daimin
Assignee: daimin
The decommission always fail when we start decommission multiple nodes on a
cluster whose racks is not enough, a cluster with 6 racks to deploy RS-6-3, for
example.
We find that those decommission nodes cover at least a rack, it's actulaly like
we are decommission one or more racks. And rack decommission is not well
supported currently, especially for cluster whose racks is not enough already.
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