David Turner 9ff320d967 Use index for peer recovery instead of translog (#45137) ... Today we recover a replica by copying operations from the primary's translog. However we also retain some historical operations in the index itself, as long as soft-deletes are enabled. This commit adjusts peer recovery to use the operations in the index for recovery rather than those in the translog, and ensures that the replication group retains enough history for use in peer recovery by means of retention leases. Reverts #38904 and #42211 Relates #41536 Backport of #45136 to 7.x.		2019-08-02 15:00:43 +01:00
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licenses	Upgrade to Lucene 8.2.0 release (#44859) (#44892)	2019-07-26 08:14:59 +02:00
src	Use index for peer recovery instead of translog (#45137)	2019-08-02 15:00:43 +01:00
build.gradle	Upgrade HPPC to version 0.8.1 (#43025)	2019-06-12 13:14:16 +02:00