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Make memory tuning cgroups v2 compatible #262

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Jul 1, 2024
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Make memory tuning cgroups v2 compatible #262

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11 changes: 9 additions & 2 deletions docker-entrypoint-initdb.d/001_timescaledb_tune.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,16 @@ fi

if [ -z "${TS_TUNE_MEMORY:-}" ]; then
# See if we can get the container's total allocated memory from the cgroups metadata
if [ -f /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
# Try with cgroups v2 first.
if [ -f /sys/fs/cgroup/cgroup.controllers ]; then
TS_TUNE_MEMORY=$(cat /sys/fs/cgroup/memory.max)
TS_CGROUPS_MAX_MEM=true
# cgroups v2 is not available, try with cgroups v1
elif [ -f /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
TS_TUNE_MEMORY=$(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)

TS_CGROUPS_MAX_MEM=true
fi
if [ "${TS_CGROUPS_MAX_MEM:-false}" != "false" ]; then
if [ "${TS_TUNE_MEMORY}" = "18446744073709551615" ]; then
# Bash seems to error out for numbers greater than signed 64-bit,
# so if the value of limit_in_bytes is the 64-bit UNSIGNED max value
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