fd

package

v0.4.9 Latest Latest Go to latest Published: Apr 21, 2025 License: Apache-2.0 Imports: 17 Imported by: 0

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Valid go.mod file
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Repository

github.com/leptonai/gpud

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Documentation ¶

Overview ¶

Package fd tracks the number of file descriptors used on the host.

Index ¶

Constants
func HasVFSFileMaxLimitReached(line string) bool
func Match(line string) (eventName string, message string)
func New(ctx context.Context, eventStore eventstore.Store) (components.Component, error)
type Data

Constants ¶

View Source

const (
	Name = "file-descriptor"

	// DefaultThresholdAllocatedFileHandles is some high number, in case the system is under high file descriptor usage.
	DefaultThresholdAllocatedFileHandles = 10000000

	// DefaultThresholdRunningPIDs is some high number, in case fd-max is unlimited
	DefaultThresholdRunningPIDs = 900000

	WarningFileHandlesAllocationPercent    = 80.0
	ErrFileHandlesAllocationExceedsWarning = "file handles allocation exceeds its threshold (80%)"
)

Variables ¶

This section is empty.

Functions ¶

func HasVFSFileMaxLimitReached ¶ added in v0.4.4

func HasVFSFileMaxLimitReached(line string) bool

Returns true if the line indicates that the file-max limit has been reached. ref. https://docs.kernel.org/admin-guide/sysctl/fs.html#file-max-file-nr

func Match ¶ added in v0.4.4

func Match(line string) (eventName string, message string)

func New ¶

func New(ctx context.Context, eventStore eventstore.Store) (components.Component, error)

Types ¶

type Data ¶ added in v0.4.5

type Data struct {
	// The number of file descriptors currently allocated on the host (not per process).
	AllocatedFileHandles uint64 `json:"allocated_file_handles"`
	// The number of running PIDs returned by https://pkg.go.dev/github.com/shirou/gopsutil/v4/process#Pids.
	RunningPIDs uint64 `json:"running_pids"`
	Usage       uint64 `json:"usage"`
	Limit       uint64 `json:"limit"`

	// AllocatedFileHandlesPercent is the percentage of file descriptors that are currently allocated,
	// based on the current file descriptor limit and the current number of file descriptors allocated on the host (not per process).
	AllocatedFileHandlesPercent string `json:"allocated_file_handles_percent"`
	// UsedPercent is the percentage of file descriptors that are currently in use,
	// based on the current file descriptor limit on the host (not per process).
	UsedPercent string `json:"used_percent"`

	ThresholdAllocatedFileHandles        uint64 `json:"threshold_allocated_file_handles"`
	ThresholdAllocatedFileHandlesPercent string `json:"threshold_allocated_file_handles_percent"`

	ThresholdRunningPIDs        uint64 `json:"threshold_running_pids"`
	ThresholdRunningPIDsPercent string `json:"threshold_running_pids_percent"`

	// Set to true if the file handles are supported.
	FileHandlesSupported bool `json:"file_handles_supported"`
	// Set to true if the file descriptor limit is supported.
	FDLimitSupported bool `json:"fd_limit_supported"`
	// contains filtered or unexported fields
}

Source Files ¶

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Directories ¶

Path	Synopsis
metrics Package metrics implements the file descriptor metrics collection and reporting.	Package metrics implements the file descriptor metrics collection and reporting.

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