Xiao Chen created HDFS-12725:
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Summary: BlockPlacementPolicyRackFaultTolerant still fails with
racks with very few nodes
Key: HDFS-12725
URL: https://issues.apache.org/jira/browse/HDFS-12725
Project: Hadoop HDFS
Issue Type: Bug
Components: erasure-coding
Affects Versions: 3.0.0
Reporter: Xiao Chen
Assignee: Xiao Chen
HDFS-12567 tries to fix the scenario where EC blocks may not be allocated in
extremely rack-imbalanced cluster.
The added fall-back step of the fix could be improved to do a best-effort
placement. This is more likely to happen in testing than in real clusters.
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