If you are adding new documents or modifying existing documents while issuing delete-by-query requests, you may see performance degradation on non-leader replicas. Leaders apply updates in a specific order. In order to guarantee they use the same order, non-leaders (certainly when using NRT replication, unsure about TLOG replicas) might have to replay the delete-by-query operation multiple times. You should see something along the lines of "Reordered DBQs detected" in your log file.
On Mon, Aug 26, 2024 at 12:41 PM mtn search <search...@gmail.com> wrote: > Hello, > > I believe I have heard there are some issues with Delete by Query for > SolrCloud. I did not pick up on what the symptoms were. If this is true, > what are the issues? > > Thanks, > Matt >
