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mikemccand / stargazers-migration-test

Testing Lucene's Jira -> GitHub issues migration
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ConcurrentMergeScheduler should maybe sometimes do synchronously [LUCENE-8965] #962

Closed mikemccand closed 4 years ago

mikemccand commented 5 years ago

It can be beneficial for the ConcurrentMergeScheduler to sometimes not do concurrent merges (i.e. sometimes do a serial merge). When the provided "OneMerge" is small and when the MergeTrigger is FULL_FLUSH (i.e. on a commit), a new searcher would benefit from seeing fewer segments. If index replication is used, this setting can reduce the net replication by merging a little more eagerly sometimes.

Legacy Jira details

LUCENE-8965 by David Smiley (@dsmiley) on Sep 04 2019, resolved Jun 21 2020 Linked issues:

mikemccand commented 4 years ago

Obsoleted by LUCENE-8962

[Legacy Jira: David Smiley (@dsmiley) on Jun 21 2020]