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Fix ulimit script (#19095)

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* Fix ulimit script

* still try to set soft limit
This commit is contained in:
Josh Hawkins 2025-07-10 18:47:31 -05:00 committed by GitHub
parent 95daf0ba05
commit 687e118b58
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1 changed files with 40 additions and 10 deletions
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50
docker/main/rootfs/usr/local/ulimit/set_ulimit.sh
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@ -11,17 +11,47 @@ current_hard_limit=$(ulimit -Hn)
TARGET_SOFT_LIMIT=65536
TARGET_HARD_LIMIT=65536
if [ "$current_soft_limit" -lt "$TARGET_SOFT_LIMIT" ]; then
# Attempt to set both soft and hard limits to the new value
# This requires sufficient privileges (e.g., running as root in the container)
if ulimit -Hn "$TARGET_HARD" && ulimit -Sn "$TARGET_SOFT"; then
new_soft_limit=$(ulimit -Sn)
new_hard_limit=$(ulimit -Hn)
echo "Current file limits - Soft: $current_soft_limit, Hard: $current_hard_limit"
if [ "$new_soft_limit" -ne "$TARGET_SOFT_LIMIT" ] || [ "$new_hard_limit" -ne "$TARGET_HARD_LIMIT" ]; then
echo "Warning: Nofile limits were set, but not to the exact target values."
if [ "$current_soft_limit" -lt "$TARGET_SOFT_LIMIT" ]; then
# Set hard limit first (if it needs to be increased)
hard_limit_success=true
if [ "$current_hard_limit" -lt "$TARGET_HARD_LIMIT" ]; then
if ! ulimit -Hn "$TARGET_HARD_LIMIT"; then
echo "Warning: Failed to set hard limit to $TARGET_HARD_LIMIT"
echo "Current hard limit is $current_hard_limit, will try to set soft limit anyway"
hard_limit_success=false
fi
else
echo "Warning: Failed to set new nofile limits."
fi
# Determine what soft limit to use
if [ "$hard_limit_success" = true ] || [ "$current_hard_limit" -ge "$TARGET_SOFT_LIMIT" ]; then
# We can try to set the target soft limit
target_soft=$TARGET_SOFT_LIMIT
else
# Hard limit is too low, set soft limit to current hard limit
target_soft=$current_hard_limit
echo "Setting soft limit to current hard limit ($current_hard_limit) since hard limit couldn't be increased"
fi
# Set soft limit
if ! ulimit -Sn "$target_soft"; then
echo "Warning: Failed to set soft limit to $target_soft"
exit 1
fi
# Verify the new limits
new_soft_limit=$(ulimit -Sn)
new_hard_limit=$(ulimit -Hn)
echo "New limits - Soft: $new_soft_limit, Hard: $new_hard_limit"
if [ "$new_soft_limit" -eq "$TARGET_SOFT_LIMIT" ] && [ "$new_hard_limit" -eq "$TARGET_HARD_LIMIT" ]; then
echo "Successfully set file limits to target values"
elif [ "$new_soft_limit" -gt "$current_soft_limit" ]; then
echo "Successfully increased soft limit from $current_soft_limit to $new_soft_limit"
else
echo "Warning: Soft limit may not have been increased as expected"
fi
else
echo "Soft limit is already sufficient ($current_soft_limit >= $TARGET_SOFT_LIMIT)"
fi