Docker fails on first run - "-gt: unary operator expected"

[Malvineous]

I am trying to run the Docker version timescale/timescaledb:2.18.0-pg17 but it fails on the initial run with the error /docker-entrypoint-initdb.d/001_timescaledb_tune.sh: line 50: [: -gt: unary operator expected.

I have /sys/fs/cgroup/ on my system but not the file memory.max, which I think is the problem. The script seems to fail if memory.max does not exist.

I am not sure if this is the cause of the following 'panic' or if that is something else.

/usr/local/bin/docker-entrypoint.sh: sourcing /docker-entrypoint-initdb.d/000_install_timescaledb.sh
CREATE EXTENSION
2025-02-07 10:40:11.555 UTC [63] ERROR:  TimescaleDB background worker connected to template database, exiting
CREATE EXTENSION

/usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/001_timescaledb_tune.sh
2025-02-07 10:40:11.562 UTC [42] LOG:  background worker "TimescaleDB Background Worker Scheduler" (PID 63) exited with exit code 1
cat: can't open '/sys/fs/cgroup/memory.max': No such file or directory
/docker-entrypoint-initdb.d/001_timescaledb_tune.sh: line 50: [: -gt: unary operator expected
Using postgresql.conf at this path:
/var/lib/postgresql/data/postgresql.conf

Writing backup to:
/tmp/timescaledb_tune.backup202502071040

panic: bytes must be at least 1 byte (got 0)

goroutine 1 [running]:
github.com/timescale/timescaledb-tune/internal/parse.parseIntToFloatUnits(0x400010dc08?)
	/go/pkg/mod/github.com/timescale/timescaledb-tune@v0.18.0/internal/parse/parse.go:115 +0x114
github.com/timescale/timescaledb-tune/internal/parse.BytesToDecimalFormat(0x0?)
	/go/pkg/mod/github.com/timescale/timescaledb-tune@v0.18.0/internal/parse/parse.go:138 +0x1c
github.com/timescale/timescaledb-tune/pkg/tstune.(*Tuner).processQuiet(0x400010dee0, 0x40000732c0, 0x0)
	/go/pkg/mod/github.com/timescale/timescaledb-tune@v0.18.0/pkg/tstune/tuner.go:668 +0x44
github.com/timescale/timescaledb-tune/pkg/tstune.(*Tuner).Run(0x400010dee0, 0x0?, {0x15f1f8, 0x400003c048}, {0x15f218, 0x400003c050}, {0x15f218, 0x400003c058})
	/go/pkg/mod/github.com/timescale/timescaledb-tune@v0.18.0/pkg/tstune/tuner.go:300 +0x42c
main.main()
	/go/pkg/mod/github.com/timescale/timescaledb-tune@v0.18.0/cmd/timescaledb-tune/main.go:65 +0xf4

[SebKuzminsky]

I have the same problem. I'm running on Linux 6.6 on arm64.

[SebKuzminsky]

I worked around this by setting the TS_TUNE_MEMORY environment variable in the container:

$ docker run --rm --name timescaledb -p 5432:5432 -e POSTGRES_PASSWORD=password -e TS_TUNE_MEMORY=4GB timescale/timescaledb-ha:pg15

[SourceCodeBot]

I can confirm, -e TS_TUNE_MEMORY=4GB works on 2.18.1-pg17 too.
I ran docker run -d --name times17 -p 5432 -e TS_TUNE_MEMORY=4GB -e POSTGRES_PASSWORD=password timescale/timescaledb:2.18.1-pg17