Documentation
¶
Index ¶
- Constants
- Variables
- type AllocBroadcaster
- type AllocChecksRequest
- type AllocChecksResponse
- type AllocExecRequest
- type AllocFileInfo
- type AllocHookResources
- type AllocListener
- type AllocResourceUsage
- type AllocStatsRequest
- type AllocStatsResponse
- type AllocUpdatePriority
- type CSIControllerQuery
- type CSIControllerRequest
- type CSIVolumeMountOptions
- type ClientCSIControllerAttachVolumeRequest
- type ClientCSIControllerAttachVolumeResponse
- type ClientCSIControllerCreateSnapshotRequest
- type ClientCSIControllerCreateSnapshotResponse
- type ClientCSIControllerCreateVolumeRequest
- type ClientCSIControllerCreateVolumeResponse
- type ClientCSIControllerDeleteSnapshotRequest
- type ClientCSIControllerDeleteSnapshotResponse
- type ClientCSIControllerDeleteVolumeRequest
- type ClientCSIControllerDeleteVolumeResponse
- type ClientCSIControllerDetachVolumeRequest
- type ClientCSIControllerDetachVolumeResponse
- type ClientCSIControllerListSnapshotsRequest
- type ClientCSIControllerListSnapshotsResponse
- type ClientCSIControllerListVolumesRequest
- type ClientCSIControllerListVolumesResponse
- type ClientCSIControllerValidateVolumeRequest
- type ClientCSIControllerValidateVolumeResponse
- type ClientCSINodeDetachVolumeRequest
- type ClientCSINodeDetachVolumeResponse
- type ClientStatsResponse
- type CpuStats
- type FsListRequest
- type FsListResponse
- type FsLogsRequest
- type FsStatRequest
- type FsStatResponse
- type FsStreamRequest
- type HealthCheckIntervalRequest
- type HealthCheckIntervalResponse
- type HealthCheckRequest
- type HealthCheckResponse
- type MemoryStats
- type MonitorRequest
- type NodeRegistration
- type ResourceUsage
- type RpcError
- type StreamErrWrapper
- type TaskResourceUsage
Constants ¶
const CheckBufSize = 4 * 1024
CheckBufSize is the size of the buffer that is used for job output
Variables ¶
var DriverStatsNotImplemented = errors.New("stats not implemented for driver")
DriverStatsNotImplemented is the error to be returned if a driver doesn't implement stats.
var ErrAllocBroadcasterClosed = errors.New("alloc broadcaster closed")
Functions ¶
This section is empty.
Types ¶
type AllocBroadcaster ¶ added in v0.6.0
type AllocBroadcaster struct {
// contains filtered or unexported fields
}
AllocBroadcaster implements an allocation broadcast channel where each listener receives allocation updates. Pending updates are dropped and replaced by newer allocation updates, so listeners may not receive every allocation update. However this ensures Sends never block and listeners only receive the latest allocation update -- never a stale version.
func NewAllocBroadcaster ¶ added in v0.6.0
func NewAllocBroadcaster(l hclog.Logger) *AllocBroadcaster
NewAllocBroadcaster returns a new AllocBroadcaster.
func (*AllocBroadcaster) Close ¶ added in v0.6.0
func (b *AllocBroadcaster) Close()
Close closes the channel, disabling the sending of further allocation updates. Pending updates are still received by listeners. Safe to call concurrently and more than once.
func (*AllocBroadcaster) Listen ¶ added in v0.6.0
func (b *AllocBroadcaster) Listen() *AllocListener
Listen returns a Listener for the broadcast channel. New listeners receive the last sent alloc update.
func (*AllocBroadcaster) Send ¶ added in v0.6.0
func (b *AllocBroadcaster) Send(v *structs.Allocation) error
Send broadcasts an allocation update. Any pending updates are replaced with this version of the allocation to prevent blocking on slow receivers. Returns ErrAllocBroadcasterClosed if called after broadcaster is closed.
type AllocChecksRequest ¶ added in v1.6.105
type AllocChecksRequest struct {
structs.QueryOptions
AllocID string
}
AllocChecksRequest is used to request the latest nomad service discovery check status information of a given allocation.
type AllocChecksResponse ¶ added in v1.6.105
type AllocChecksResponse struct {
structs.QueryMeta
Results map[structs.CheckID]*structs.CheckQueryResult
}
AllocChecksResponse is used to return the latest nomad service discovery check status information of a given allocation.
type AllocExecRequest ¶ added in v0.9.2
type AllocExecRequest struct {
// AllocID is the allocation to stream logs from
AllocID string
// Task is the task to stream logs from
Task string
// Tty indicates whether to allocate a pseudo-TTY
Tty bool
// Cmd is the command to be executed
Cmd []string
structs.QueryOptions
}
AllocExecRequest is the initial request for execing into an Alloc task
type AllocFileInfo ¶ added in v0.8.0
type AllocFileInfo struct {
Name string
IsDir bool
Size int64
FileMode string
ModTime time.Time
ContentType string `json:",omitempty"`
}
AllocFileInfo holds information about a file inside the AllocDir
type AllocHookResources ¶ added in v0.11.0
type AllocHookResources struct {
// contains filtered or unexported fields
}
AllocHookResources contains data that is provided by AllocRunner Hooks for consumption by TaskRunners. This should be instantiated once in the AllocRunner and then only accessed via getters and setters that hold the lock.
func NewAllocHookResources ¶ added in v1.6.105
func NewAllocHookResources() *AllocHookResources
func (*AllocHookResources) GetCSIMounts ¶ added in v0.11.0
func (a *AllocHookResources) GetCSIMounts() map[string]*csimanager.MountInfo
GetCSIMounts returns a copy of the CSI mount info previously written by the CSI allocrunner hook
func (*AllocHookResources) SetCSIMounts ¶ added in v0.11.0
func (a *AllocHookResources) SetCSIMounts(m map[string]*csimanager.MountInfo)
SetCSIMounts stores the CSI mount info for later use by the volume taskrunner hook
type AllocListener ¶ added in v0.6.0
type AllocListener struct {
// contains filtered or unexported fields
}
AllocListener implements a listening endpoint for an allocation broadcast channel.
func (*AllocListener) Ch ¶ added in v0.6.0
func (l *AllocListener) Ch() <-chan *structs.Allocation
func (*AllocListener) Close ¶ added in v0.6.0
func (l *AllocListener) Close()
Close closes the Listener, disabling the receival of further messages. Safe to call more than once and concurrently with receiving on Ch.
type AllocResourceUsage ¶
type AllocResourceUsage struct {
// ResourceUsage is the summation of the task resources
ResourceUsage *ResourceUsage
// Tasks contains the resource usage of each task
Tasks map[string]*TaskResourceUsage
// The max timestamp of all the Tasks
Timestamp int64
}
AllocResourceUsage holds the aggregated task resource usage of the allocation.
type AllocStatsRequest ¶ added in v0.8.0
type AllocStatsRequest struct {
// AllocID is the allocation to retrieves stats for
AllocID string
// Task is an optional filter to only request stats for the task.
Task string
structs.QueryOptions
}
AllocStatsRequest is used to request the resource usage of a given allocation, potentially filtering by task
type AllocStatsResponse ¶ added in v0.8.0
type AllocStatsResponse struct {
Stats *AllocResourceUsage
structs.QueryMeta
}
AllocStatsResponse is used to return the resource usage of a given allocation.
type AllocUpdatePriority ¶ added in v1.6.105
type AllocUpdatePriority int
AllocUpdatePriority indicates the urgency of an allocation update so that the client can decide whether to wait longer
const ( AllocUpdatePriorityNone AllocUpdatePriority = iota AllocUpdatePriorityTypical AllocUpdatePriorityUrgent )
type CSIControllerQuery ¶ added in v0.11.0
type CSIControllerQuery struct {
// ControllerNodeID is the node that should be targeted by the request
ControllerNodeID string
// PluginID is the plugin that should be targeted on the given node.
PluginID string
}
CSIControllerQuery is used to specify various flags for queries against CSI Controllers
func (*CSIControllerQuery) SetControllerNodeID ¶ added in v1.6.105
func (c *CSIControllerQuery) SetControllerNodeID(nodeID string)
type CSIControllerRequest ¶ added in v1.6.105
type CSIControllerRequest interface {
SetControllerNodeID(string)
}
CSIControllerRequest interface lets us set embedded CSIControllerQuery fields in the server
type CSIVolumeMountOptions ¶ added in v0.11.0
type CSIVolumeMountOptions struct {
// Filesystem is the desired filesystem type that should be used by the volume
// (e.g ext4, aufs, zfs). This field is optional.
Filesystem string
// MountFlags contain the mount options that should be used for the volume.
// These may contain _sensitive_ data and should not be leaked to logs or
// returned in debugging data.
// The total size of this field must be under 4KiB.
MountFlags []string
}
CSIVolumeMountOptions contains the mount options that should be provided when attaching and mounting a volume with the CSIVolumeAttachmentModeFilesystem attachment mode.
func (*CSIVolumeMountOptions) ToCSIMountOptions ¶ added in v1.6.105
func (c *CSIVolumeMountOptions) ToCSIMountOptions() *structs.CSIMountOptions
type ClientCSIControllerAttachVolumeRequest ¶ added in v0.11.0
type ClientCSIControllerAttachVolumeRequest struct {
// The external ID of the volume to be used on a node.
// This field is REQUIRED.
VolumeID string
// The ID of the node. This field is REQUIRED. This must match the NodeID that
// is fingerprinted by the target node for this plugin name.
ClientCSINodeID string
// AttachmentMode indicates how the volume should be attached and mounted into
// a task.
AttachmentMode structs.CSIVolumeAttachmentMode
// AccessMode indicates the desired concurrent access model for the volume
AccessMode structs.CSIVolumeAccessMode
// MountOptions is an optional field that contains additional configuration
// when providing an AttachmentMode of CSIVolumeAttachmentModeFilesystem
MountOptions *CSIVolumeMountOptions
// ReadOnly indicates that the volume will be used in a readonly fashion. This
// only works when the Controller has the PublishReadonly capability.
ReadOnly bool
// Secrets required by plugin to complete the controller publish
// volume request. This field is OPTIONAL.
Secrets structs.CSISecrets
// Volume context as returned by storage provider in CreateVolumeResponse.
// This field is optional.
VolumeContext map[string]string
CSIControllerQuery
}
func (*ClientCSIControllerAttachVolumeRequest) ToCSIRequest ¶ added in v0.11.0
func (c *ClientCSIControllerAttachVolumeRequest) ToCSIRequest() (*csi.ControllerPublishVolumeRequest, error)
type ClientCSIControllerAttachVolumeResponse ¶ added in v0.11.0
type ClientCSIControllerAttachVolumeResponse struct {
// Opaque static publish properties of the volume. SP MAY use this
// field to ensure subsequent `NodeStageVolume` or `NodePublishVolume`
// calls calls have contextual information.
// The contents of this field SHALL be opaque to nomad.
// The contents of this field SHALL NOT be mutable.
// The contents of this field SHALL be safe for the nomad to cache.
// The contents of this field SHOULD NOT contain sensitive
// information.
// The contents of this field SHOULD NOT be used for uniquely
// identifying a volume. The `volume_id` alone SHOULD be sufficient to
// identify the volume.
// This field is OPTIONAL and when present MUST be passed to
// subsequent `NodeStageVolume` or `NodePublishVolume` calls
PublishContext map[string]string
}
ClientCSIControllerDetachVolumeRequest is the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform ControllerUnpublish for a volume on a specific client.
type ClientCSIControllerCreateSnapshotRequest ¶ added in v1.6.105
type ClientCSIControllerCreateSnapshotRequest struct {
ExternalSourceVolumeID string
Name string
Secrets structs.CSISecrets
Parameters map[string]string
CSIControllerQuery
}
ClientCSIControllerCreateSnapshotRequest the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform CreateSnapshot
func (*ClientCSIControllerCreateSnapshotRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerCreateSnapshotRequest) ToCSIRequest() (*csi.ControllerCreateSnapshotRequest, error)
type ClientCSIControllerCreateSnapshotResponse ¶ added in v1.6.105
type ClientCSIControllerCreateVolumeRequest ¶ added in v1.6.105
type ClientCSIControllerCreateVolumeRequest struct {
Name string
VolumeCapabilities []*structs.CSIVolumeCapability
MountOptions *structs.CSIMountOptions
Parameters map[string]string
Secrets structs.CSISecrets
CapacityMin int64
CapacityMax int64
SnapshotID string
CloneID string
RequestedTopologies *structs.CSITopologyRequest
CSIControllerQuery
}
ClientCSIControllerCreateVolumeRequest the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform CreateVolume
func (*ClientCSIControllerCreateVolumeRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerCreateVolumeRequest) ToCSIRequest() (*csi.ControllerCreateVolumeRequest, error)
type ClientCSIControllerCreateVolumeResponse ¶ added in v1.6.105
type ClientCSIControllerDeleteSnapshotRequest ¶ added in v1.6.105
type ClientCSIControllerDeleteSnapshotRequest struct {
ID string
Secrets structs.CSISecrets
CSIControllerQuery
}
ClientCSIControllerDeleteSnapshotRequest the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform DeleteSnapshot
func (*ClientCSIControllerDeleteSnapshotRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerDeleteSnapshotRequest) ToCSIRequest() *csi.ControllerDeleteSnapshotRequest
type ClientCSIControllerDeleteSnapshotResponse ¶ added in v1.6.105
type ClientCSIControllerDeleteSnapshotResponse struct{}
type ClientCSIControllerDeleteVolumeRequest ¶ added in v1.6.105
type ClientCSIControllerDeleteVolumeRequest struct {
ExternalVolumeID string
Secrets structs.CSISecrets
CSIControllerQuery
}
ClientCSIControllerDeleteVolumeRequest the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform DeleteVolume
func (*ClientCSIControllerDeleteVolumeRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerDeleteVolumeRequest) ToCSIRequest() *csi.ControllerDeleteVolumeRequest
type ClientCSIControllerDeleteVolumeResponse ¶ added in v1.6.105
type ClientCSIControllerDeleteVolumeResponse struct{}
type ClientCSIControllerDetachVolumeRequest ¶ added in v0.11.0
type ClientCSIControllerDetachVolumeRequest struct {
// The external ID of the volume to be unpublished for the node
// This field is REQUIRED.
VolumeID string
// The CSI Node ID for the Node that the volume should be detached from.
// This field is REQUIRED. This must match the NodeID that is fingerprinted
// by the target node for this plugin name.
ClientCSINodeID string
// Secrets required by plugin to complete the controller unpublish
// volume request. This field is OPTIONAL.
Secrets structs.CSISecrets
CSIControllerQuery
}
func (*ClientCSIControllerDetachVolumeRequest) ToCSIRequest ¶ added in v0.11.0
func (c *ClientCSIControllerDetachVolumeRequest) ToCSIRequest() *csi.ControllerUnpublishVolumeRequest
type ClientCSIControllerDetachVolumeResponse ¶ added in v0.11.0
type ClientCSIControllerDetachVolumeResponse struct{}
type ClientCSIControllerListSnapshotsRequest ¶ added in v1.6.105
type ClientCSIControllerListSnapshotsRequest struct {
// these pagination fields match the pagination fields of the plugins and
// not Nomad's own fields, for clarity when mapping between the two RPCs
MaxEntries int32
StartingToken string
Secrets structs.CSISecrets
CSIControllerQuery
}
ClientCSIControllerListSnapshotsRequest is the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform ListSnapshots
func (*ClientCSIControllerListSnapshotsRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerListSnapshotsRequest) ToCSIRequest() *csi.ControllerListSnapshotsRequest
type ClientCSIControllerListSnapshotsResponse ¶ added in v1.6.105
type ClientCSIControllerListSnapshotsResponse struct {
Entries []*structs.CSISnapshot
NextToken string
}
type ClientCSIControllerListVolumesRequest ¶ added in v1.6.105
type ClientCSIControllerListVolumesRequest struct {
// these pagination fields match the pagination fields of the plugins and
// not Nomad's own fields, for clarity when mapping between the two RPCs
MaxEntries int32
StartingToken string
CSIControllerQuery
}
ClientCSIControllerListVolumesVolumeRequest the RPC made from the server to a Nomad client to tell a CSI controller plugin on that client to perform ListVolumes
func (*ClientCSIControllerListVolumesRequest) ToCSIRequest ¶ added in v1.6.105
func (req *ClientCSIControllerListVolumesRequest) ToCSIRequest() *csi.ControllerListVolumesRequest
type ClientCSIControllerListVolumesResponse ¶ added in v1.6.105
type ClientCSIControllerListVolumesResponse struct {
Entries []*structs.CSIVolumeExternalStub
NextToken string
}
type ClientCSIControllerValidateVolumeRequest ¶ added in v0.11.0
type ClientCSIControllerValidateVolumeRequest struct {
VolumeID string // note: this is the external ID
VolumeCapabilities []*structs.CSIVolumeCapability
MountOptions *structs.CSIMountOptions
Secrets structs.CSISecrets
// COMPAT(1.1.1): the AttachmentMode and AccessMode fields are deprecated
// and replaced by the VolumeCapabilities field above
AttachmentMode structs.CSIVolumeAttachmentMode
AccessMode structs.CSIVolumeAccessMode
// Parameters as returned by storage provider in CreateVolumeResponse.
// This field is optional.
Parameters map[string]string
// Volume context as returned by storage provider in CreateVolumeResponse.
// This field is optional.
Context map[string]string
CSIControllerQuery
}
func (*ClientCSIControllerValidateVolumeRequest) ToCSIRequest ¶ added in v0.11.3
func (c *ClientCSIControllerValidateVolumeRequest) ToCSIRequest() (*csi.ControllerValidateVolumeRequest, error)
type ClientCSIControllerValidateVolumeResponse ¶ added in v0.11.0
type ClientCSIControllerValidateVolumeResponse struct {
}
type ClientCSINodeDetachVolumeRequest ¶ added in v0.11.0
type ClientCSINodeDetachVolumeRequest struct {
PluginID string // ID of the plugin that manages the volume (required)
VolumeID string // ID of the volume to be unpublished (required)
AllocID string // ID of the allocation we're unpublishing for (required)
NodeID string // ID of the Nomad client targeted
ExternalID string // External ID of the volume to be unpublished (required)
// These fields should match the original volume request so that
// we can find the mount points on the client
AttachmentMode structs.CSIVolumeAttachmentMode
AccessMode structs.CSIVolumeAccessMode
ReadOnly bool
}
ClientCSINodeDetachVolumeRequest is the RPC made from the server to a Nomad client to tell a CSI node plugin on that client to perform NodeUnpublish and NodeUnstage.
type ClientCSINodeDetachVolumeResponse ¶ added in v0.11.0
type ClientCSINodeDetachVolumeResponse struct{}
type ClientStatsResponse ¶ added in v0.8.0
ClientStatsResponse is used to return statistics about a node.
type CpuStats ¶
type CpuStats struct {
SystemMode float64
UserMode float64
TotalTicks float64
ThrottledPeriods uint64
ThrottledTime uint64
Percent float64
// A list of fields whose values were actually sampled
Measured []string
}
CpuStats holds cpu usage related stats
type FsListRequest ¶ added in v0.8.0
type FsListRequest struct {
// AllocID is the allocation to list from
AllocID string
// Path is the path to list
Path string
structs.QueryOptions
}
FsListRequest is used to list an allocation's directory.
type FsListResponse ¶ added in v0.8.0
type FsListResponse struct {
// Files are the result of listing a directory.
Files []*AllocFileInfo
structs.QueryMeta
}
FsListResponse is used to return the listings of an allocation's directory.
type FsLogsRequest ¶ added in v0.8.0
type FsLogsRequest struct {
// AllocID is the allocation to stream logs from
AllocID string
// Task is the task to stream logs from
Task string
// LogType indicates whether "stderr" or "stdout" should be streamed
LogType string
// Offset is the offset to start streaming data at.
Offset int64
// Origin can either be "start" or "end" and determines where the offset is
// applied.
Origin string
// PlainText disables base64 encoding.
PlainText bool
// Follow follows logs.
Follow bool
structs.QueryOptions
}
FsLogsRequest is the initial request for accessing allocation logs.
type FsStatRequest ¶ added in v0.8.0
type FsStatRequest struct {
// AllocID is the allocation to stat the file in
AllocID string
// Path is the path to list
Path string
structs.QueryOptions
}
FsStatRequest is used to stat a file
type FsStatResponse ¶ added in v0.8.0
type FsStatResponse struct {
// Info is the result of stating a file
Info *AllocFileInfo
structs.QueryMeta
}
FsStatResponse is used to return the stat results of a file
type FsStreamRequest ¶ added in v0.8.0
type FsStreamRequest struct {
// AllocID is the allocation to stream logs from
AllocID string
// Path is the path to the file to stream
Path string
// Offset is the offset to start streaming data at.
Offset int64
// Origin can either be "start" or "end" and determines where the offset is
// applied.
Origin string
// PlainText disables base64 encoding.
PlainText bool
// Limit is the number of bytes to read
Limit int64
// Follow follows the file.
Follow bool
structs.QueryOptions
}
FsStreamRequest is the initial request for streaming the content of a file.
type HealthCheckIntervalRequest ¶ added in v0.8.0
type HealthCheckIntervalRequest struct{}
type HealthCheckIntervalResponse ¶ added in v0.8.0
type HealthCheckRequest ¶ added in v0.8.0
type HealthCheckRequest struct{}
HealthCheckRequest is the request type for a type that fulfils the Health Check interface
type HealthCheckResponse ¶ added in v0.8.0
type HealthCheckResponse struct {
// Drivers is a map of driver names to current driver information
Drivers map[string]*structs.DriverInfo
}
HealthCheckResponse is the response type for a type that fulfills the Health Check interface
func (*HealthCheckResponse) AddDriverInfo ¶ added in v0.8.0
func (h *HealthCheckResponse) AddDriverInfo(name string, driverInfo *structs.DriverInfo)
AddDriverInfo adds information about a driver to the fingerprint response. If the Drivers field has not yet been initialized, it does so here.
type MemoryStats ¶
type MemoryStats struct {
RSS uint64
Cache uint64
Swap uint64
MappedFile uint64
Usage uint64
MaxUsage uint64
KernelUsage uint64
KernelMaxUsage uint64
// A list of fields whose values were actually sampled
Measured []string
}
MemoryStats holds memory usage related stats
func (*MemoryStats) Add ¶
func (ms *MemoryStats) Add(other *MemoryStats)
type MonitorRequest ¶ added in v0.10.2
type MonitorRequest struct {
// LogLevel is the log level filter we want to stream logs on
LogLevel string
// LogJSON specifies if log format should be unstructured or json
LogJSON bool
// NodeID is the node we want to track the logs of
NodeID string
// ServerID is the server we want to track the logs of
ServerID string
// PlainText disables base64 encoding.
PlainText bool
structs.QueryOptions
}
MonitorRequest is used to request and stream logs from a client node.
type NodeRegistration ¶ added in v1.6.105
type NodeRegistration struct {
HasRegistered bool
}
NodeRegistration stores data about the client's registration with the server
type ResourceUsage ¶
type ResourceUsage struct {
MemoryStats *MemoryStats
CpuStats *CpuStats
DeviceStats []*device.DeviceGroupStats
}
ResourceUsage holds information related to cpu and memory stats
func (*ResourceUsage) Add ¶
func (ru *ResourceUsage) Add(other *ResourceUsage)
type RpcError ¶ added in v0.8.0
RpcError is used for serializing errors with a potential error code
func NewRpcError ¶ added in v0.8.0
type StreamErrWrapper ¶ added in v0.8.0
type StreamErrWrapper struct {
// Error stores any error that may have occurred.
Error *RpcError
// Payload is the payload
Payload []byte
}
StreamErrWrapper is used to serialize output of a stream of a file or logs.
type TaskResourceUsage ¶
type TaskResourceUsage struct {
ResourceUsage *ResourceUsage
Timestamp int64 // UnixNano
Pids map[string]*ResourceUsage
}
TaskResourceUsage holds aggregated resource usage of all processes in a Task and the resource usage of the individual pids