Ignore translog retention policy if soft-deletes enabled #45868
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Since elastic#45136, we use soft-deletes instead of translog in peer recovery. There's no need to retain extra translog to increase a chance of operation-based recoveries. This commit ignores the translog retention policy if soft-deletes is enabled so we can discard translog more quickly. Co-authored-by: David Turner <[email protected]> Relates elastic#45136
If soft-deletes is enabled, we will trim translog above the local checkpoint of the safe commit immediately. However, if the translog durability is async, the last commit might not be the safe commit as the local checkpoint won't advance until translog is synced. Therefore, we need to verify translog stats busily. Closes elastic#45801 Relates elastic#45473
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Since #45136, we use soft-deletes instead of translog in peer recovery.
There's no need to retain extra translog to increase a chance of
operation-based recoveries. This commit ignores the translog retention
policy if soft-deletes is enabled so we can discard translog more
quickly.
Backport of #45473