https://github.com/prometheus/prometheus/issues/8406
pi@raspberrypi:~ $ cat /etc/fstab proc /proc proc defaults 0 0 PARTUUID=6c586e13-01 /boot vfat defaults,noatime 0 2 PARTUUID=6c586e13-02 / ext4 defaults,noatime,commit=600,errors=remount-ro 0 1 tmpfs /tmp tmpfs defaults,noatime,nosuid 0 0 tmpfs /var/log tmpfs defaults,noatime,nosuid,size=50M 0 0 tmpfs /prometheus-tmpfs tmpfs defaults,nosuid,size=200M *What did you do?* Prometheus + node_exporter on Buster saving prometheus in TMPFS to save SD writes *What did you expect to see?* It working *What did you see instead? Under which circumstances?* faliures: Jan 25 03:12:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:12:23.027Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:13:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:13:23.069Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:14:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:14:23.150Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:15:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:15:23.186Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:16:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:16:23.217Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:17:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:17:23.254Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:18:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:18:23.316Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:19:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:19:23.391Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:20:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:20:23.414Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" Jan 25 03:21:23 raspberrypi prometheus[6999]: level=error ts=2021-01-25T03:21:23.430Z caller=db.go:745 component=tsdb msg="compaction failed" err="compact head: persist head block: populate block: write chunks: preallocate: no space left on device" *Environment* Raspbian Buster - System information: Linux 5.4.83-v7l+ armv7l - Prometheus version: prometheus, version 2.24.1 (branch: HEAD, revision: e448727 <https://github.com/prometheus/prometheus/commit/e4487274853c587717006eeda8804e597d120340> ) build user: root@0b5231a0de0f build date: 20210120-01:04:17 go version: go1.15.6 platform: linux/arm - Prometheus configuration file: - job_name: 'node' scrape_interval: 60s scrape_timeout: 10s static_configs: - targets: ['localhost:9100'] - job_name: 'dump1090' scrape_interval: 60s scrape_timeout: 10s static_configs: - targets: ['localhost:9105'] =/usr/bin/prometheus --config.file=/etc/prometheus/prometheus.yml \ --storage.tsdb.path="/prometheus-tmpfs/prometheus" \ --storage.tsdb.min-block-duration=30m --storage.tsdb.max-block-duration=1h \ --storage.tsdb.wal-compression \ --storage.tsdb.retention.time=1d --storage.tsdb.retention.size=50MB \ --storage.tsdb.no-lockfile \ --web.enable-admin-api [image: Screenshot_2021-01-24_20-22-42.png] -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/510fc30b-c42f-4884-b9e7-b3257540db5dn%40googlegroups.com.

