This is a quick notice that we are in the process of refreshing more than 1,280,000 requests that were marked as "NS_ERROR_UNKNOWN_HOST" and it will take a long while to catch those up, since we also have to capture more than 5,000 new requests per hour.
The reason for this large batch of refreshes is that we discovered some DNS issues with the Level3 DNS servers we used previously. There were a good many sites that did not resolve and came up with failed captures as a result. Since there is no way for us to separate out the ones that should have worked, we are forced to retry all of them.
The new DNS servers we are using seem to be much more complete and reliable. We hope to see a good many previously bad requests come back as good now.
After these complete, we will also put more than 250,000 back in Q for "RENDER_ENGINE_HUNG" so that we can be sure those are not a problem also.
New captures may be sluggish or delayed during this massive refresh. If the delay becomes too excessive, then we may take measures to deploy more capture generators or modify the prioritization a bit.