nickva opened a new pull request #934: Configurable delay before retrying on missing_doc error in replicator URL: https://github.com/apache/couchdb/pull/934 Implement a configurable delay before retrying a document fetch in replicator. missing_doc exceptions usually happen when there is a continuous replication set up and the source is updated. The change might appear in the changes feed, but when worker tries to fetch the document's revisions it talks to a node where internal replication hasn't caught up and so it throws an exception. Previously the delay was hard-coded at 0 (that is retrying was immediate). The replication would still make progress, but after crashing, retrying and generating a lot of unnecessary log noise. Since updating a source while continuous replication is running is a common scenario, it's worth optimizing for it and avoiding wasting resources and spamming logs.
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