I have encountered very weird problem with InfluxDB
Once Retention Policy starts it breaks the instance with error: out of memory. I have tried on both t2.medium (4GB) and t2.large (8GB) in AWS. Influx is in docker
Additionaly I have setup also new database and tried to remove shards manually by DROP SHARDS and effect was the same after removing few shards - also getting info about out of memory.
I checked couple of posts already about the problem, eg. https://github.com/influxdata/influxdb/issues/38 and the problem with high memory (unlimited) consumption seems to be real.
Few additional data needed:
- shard groups duration - 7d