I have InfluxDB 2.7.0 running as a service in a Ubuntu 22.04 server. Node-red writes to this instance and at the moment we only have a handful of buckets. Earlier today I could not connect the dashboard and Node-red had thousands of error messages indicating a failure to write messages. In syslog this appeared over 14,000 times:
WARN: Write to InfluxDB failed (attempt: 1). x [RequestTimedOutError]: Request timed out
And in the journal for influxdb.service this appeared once, within about 30 seconds of the bulk of the Node-red errors:
influxd-systemd-start.sh: ts=2023-11-08T01:59:42.189785Z lvl=info msg="Write failed" log_id=0lEUcbgl000 service=storage-engine service=write shard=128 error="engine: context canceled"
The entire server was mostly unresponsive when I discovered the problem and had to be rebooted from the virtualisation control panel. Any places I should start looking?