There’s actually a crying need for this, but there’s nothing that’s there yet, basically you have to look at the log files and try to figure it out.
Actually I think this would be a great thing to work on, but it’d be pretty much all new. If you’d like, you can create a Solr Improvement Proposal here: https://cwiki.apache.org/confluence/display/SOLR/SIP+Template to flesh out what this would look like. A couple of thoughts off the top of my head: I really think what would be most useful would be a collections API command, something like “RECOVERYSTATUS”, or maybe extend CLUSTERSTATUS. Currently a replica can be stuck in recovery and never get out. There are several scenarios that’d have to be considered: 1> normal startup. The replica briefly goes from down->recovering->active which should be quite brief. 1a> Waiting for a leader to be elected before continuing 2> “peer sync” where another replica is replaying documents from the tlog. 3> situations where the replica is replaying documents from its own tlog. This can be very, very, very long too. 4> full sync where it’s copying the entire index from a leader. 5> knickers in a knot, it’s given up even trying to recover. In either case, you’d want to report “all ok” if nothing was in recovery, “just the ones having trouble” and “everything because I want to look”. But like I said, there’s nothing really built into the system to accomplish this now that I know of. Best, Erick > On Feb 6, 2020, at 12:15 PM, dj-manning <derek.mann...@superna.net> wrote: > > Erick Erickson wrote >> When you say “look”, where are you looking from? Http requests? SolrJ? The >> admin UI? > > I'm open to looking form anywhere - http request, or the admin UI, or > following a log if possible. > > My objective for this ask would be to human interactively follow/watch > solr's recovery progress - if that's even possible. > > Stretch goal would be to autonomously report on recovery progress. > > The question stems from seeing recovery in log or the admin UI, then > wondering what progress is. > > Appreciation. > > > > > -- > Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html
