The message is serious because it signals that your scan/scroll search has prematurely ended and responses may be dropped (or not).
It would be nice to show us your code and your shard settings. search.keep_alive_interval is the parameter that can influence the search reaper, not search operation threading. The reaper runs each minute and might run too frequently. While not sure about your setting of scan/scroll lifetime, I can't tell more. Jörg -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoHfGVg3xAeFXASg9%3DuiWr8w0pH24b6ucDvAfQeY_JC%3DPQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
