Yuanbo Liu created HDFS-11284:
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Summary: [SPS]: Improve the stability of Storage Policy Satisfier.
Key: HDFS-11284
URL: https://issues.apache.org/jira/browse/HDFS-11284
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Yuanbo Liu
Assignee: Yuanbo Liu
Recently I've found in some conditions, SPS is not stable:
* SPS runs under safe model.
* There're some overlap nodes in the chosen target nodes.
* The real replication number of block doesn't match the replication factor.
For example, the real replication is 2 while the replication factor is 3.
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