void reset() throws IOException {
            synchronized (monitor) {
                log.log(INFO, "Replacing underlying HTTP client to attempt recovery");
                delegate = clusterFactory.create();
                inflight = new AtomicLong(0);
            }
        }
Oof, this is an attempt to see if there's a terminal bug in the Jetty client library that sometimes
renders a client instance permanently unusable. If this is the case, replacing the client altogether
should allow the feeder to start working again, when it wouldn't otherwise be able to.
vespa-feed-client/src/main/java/ai/vespa/feed/client/impl/HttpRequestStrategy.java