!Hubzilla Support Forum
has anyone an idea what kind of event took place yesterday (2018-12-19, approx 15:27 GMT)? I've got some serious spike. If you look at the attached graphs there's an outgoing traffic spike at 100 Mbit/seconds (very unusual, but this could be mysql replication, since the slave has got a spike of 40 Mbit/sec during this period, too), a lot of INSERT-Operations, a very unusual load of max 15, and 384 parallel connections to the mysql (which is also quite unsual). In fact there were so many INSERT/UPDATEs (or one huge transaction) that the slave lagged behind up to 1000 seconds, which is also a first. The machine in question isn't slow, for that matter: 4 Xeon core, 16 GB RAM, so it must be quite a workload to process during this period ...
Could this be the result of another hub reconnecting to the grid after being offline for some time?