Apache Hadoop 2.7.2 Release Notes

These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.

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• HADOOP-7139 | Major | Allow appending to existing SequenceFiles

Existing sequence files can be appended.

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• HDFS-7645 | Major | Rolling upgrade is restoring blocks from trash multiple times

WARNING: No release note provided for this incompatible change.