Beacon sync blocks queue mgmnt update #3108
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details When importing starts while peers are actively downloading, the system tends to loose download peers, most probably due to high system activity. By this behaviour, there will be extra waiting delays for finding and connecting to new download peers. For this reason, importing and downloading is serialised. Downloading does not take place while importing.
details When importing starts while peers are actively downloading, the system tends to loose download peers, most probably due to high system activity. By this behaviour, there will be extra waiting delays for finding and connecting to new download peers. For this reason, importing starts not before the staged blocks queue is filled up. The ramp up time to fill up is a fraction of the potential waiting time when losing peers.
why Better overall throughput for slightly increased memory usage
why In regular circumstances, the header queue has a few records most of time. Longer queues appear with unwieldy peers (bogus data, timeouts, etc.) if they happen to lock the lowest record so preventing from temporarily serialising the queue.
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