A node with 1,7Gb RAM usage at the moment, tell me what to check (v1.17.4)

[Alexey]

The high RAM usage is usually mean that:

• the drive is slow or it’s a network attached drive. Even iSCSI have a high latency, the NFS and SMB are not fully compatible;
• the database(s) corruption.

Please, make sure that you use a local connected drives, do not use btrfs (Topics tagged btrfs), if you use Unraid - upgrade to the latest version; the disk is not SMR

PSA: Beware of HDD manufacturers submarining SMR technology in HDD's without any public mention

Recently there have been several reports of SNOs running into massive CPU wait issues. It seems the common thread has been the use of HDD’s in which manufacturers have quietly started using SMR technology. [2003549104] Because of these overlapping tracks, when data is written to the disk, the drive has to rewrite several additional tracks. This obviously leads to much slower writes. These HDD’s usually deal with that using large caches and rewriting the shingles tracks during quiet times. How…

Then check your databases: https://support.storj.io/hc/en-us/articles/360029309111-How-to-fix-a-database-disk-image-is-malformed-