Bump LAST_UPGRADABLE_LAYOUT_VERSION
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Key: HDFS-3137
URL: https://issues.apache.org/jira/browse/HDFS-3137
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Eli Collins
Assignee: Eli Collins
LAST_UPGRADABLE_LAYOUT_VERSION is currently -7, which corresponds to Hadoop
0.14. How about we bump it to -16, which corresponds to Hadoop 0.18?
I don't think many people are using releases older than v0.18, and those who
are probably want to upgrade to the latest stable release (v1.0). They can
always upgrade to v1.0 and then eg 0.23 from there if they want.
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