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Elasticsearch for Apache Hadoop version 8.0.0-rc2

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Elasticsearch for Apache Hadoop version 8.0.0-rc2

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Breaking changes

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  • Deprecate support for Spark 1.x, Scala 2.10 on Spark 2.x, Hadoop 1, Pig, and Storm #1845

Enhancements

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Build
  • Get rid of direct cross-project dependencies to avoid gradle warnings #1868
Core
  • Avoid failure when using frozen indices #1842

Bug fixes

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Core
  • Fix support for empty and null arrays #1827
MapReduce
  • Fix docsReceived counter #1840
REST
  • Check for invalid characters in X-Opaque-ID headers #1873
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