lfrancke commented on issue #3425: NIFI-6197 HBase: Fix deprecations, default for client retries & validations URL: https://github.com/apache/nifi/pull/3425#issuecomment-482202372 I disagree but I do understand that we don't want a bad user experience :) I believe the most common scenario is during normal operation. Because having a region moved, split, merged or writes blocked (due to all kinds of reasons) or a server crash is totally normal in HBase. And if you have a long running flow this'll happen multiple times a day on a busy cluster. Enabling the service will ideally only ever happen once (or very few times). I don't have time to look now and don't know the API very well but can we use a low retry number for enabling to see if it works and if it does then reconnect with the "proper" number? Shouldn't add much latency. 5 is too low for normal operations. HBase uses an incremental backoff for some of those retries. I believe the current (HBase 2.x) default of 15 to be fine.
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