Nhat Nguyen 6dd0aa54f6 Integrates soft-deletes into Elasticsearch (#33222) ... This PR integrates Lucene soft-deletes(LUCENE-8200) into Elasticsearch. Highlight works in this PR include: - Replace hard-deletes by soft-deletes in InternalEngine - Use _recovery_source if _source is disabled or modified (#31106) - Soft-deletes retention policy based on the global checkpoint (#30335) - Read operation history from Lucene instead of translog (#30120) - Use Lucene history in peer-recovery (#30522) Relates #30086 Closes #29530 --- These works have been done by the whole team; however, these individuals (lexical order) have significant contribution in coding and reviewing: Co-authored-by: Adrien Grand jpountz@gmail.com Co-authored-by: Boaz Leskes b.leskes@gmail.com Co-authored-by: Jason Tedor jason@tedor.me Co-authored-by: Martijn van Groningen martijn.v.groningen@gmail.com Co-authored-by: Nhat Nguyen nhat.nguyen@elastic.co Co-authored-by: Simon Willnauer simonw@apache.org		2018-08-30 22:11:23 -04:00
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main	Integrates soft-deletes into Elasticsearch (#33222)	2018-08-30 22:11:23 -04:00
test	Integrates soft-deletes into Elasticsearch (#33222)	2018-08-30 22:11:23 -04:00