com.bigdata.util.concurrent

Interface IQueueCounters.ITaskCounters

Enclosing interface:

IQueueCounters

public static interface IQueueCounters.ITaskCounters

Counters defined by TaskCounters. Subsets of these counters are also exposed by other interfaces.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

Fields

Modifier and Type	Field and Description
static String	CheckpointTime Cumulative elapsed time in milliseconds consumed by write tasks while checkpointing their indices.
static String	InterArrivalTime Cumulative milliseconds of the inter-arrival time between tasks.
static String	QueueWaitingTime Cumulative milliseconds across tasks of the time that a task was waiting on a queue pending execution.
static String	QueuingTime Cumulative milliseconds across tasks between the submission of a task and its completion including any time spent waiting for resource locks, commit processing and any time spent servicing that task.
static String	ServiceTime Cumulative milliseconds across tasks that a task is being serviced by a worker thread (elapsed clock time from when the task was assigned to the thread until the task completes its work).
static String	TaskCompleteCount Count of all tasks completed by the service (failed + success).
static String	TaskFailCount Count of all tasks which failed during execution.
static String	TaskSubmitCount Count of all tasks submitted to the service.
static String	TaskSuccessCount Count of all tasks which were successfully executed.

Field Detail

TaskCompleteCount

static final String TaskCompleteCount

Count of all tasks completed by the service (failed + success).

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Constant Field Values

TaskSubmitCount

static final String TaskSubmitCount

Count of all tasks submitted to the service.

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Constant Field Values

TaskFailCount

static final String TaskFailCount

Count of all tasks which failed during execution.

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Constant Field Values

TaskSuccessCount

static final String TaskSuccessCount

Count of all tasks which were successfully executed.

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Constant Field Values

InterArrivalTime

static final String InterArrivalTime

Cumulative milliseconds of the inter-arrival time between tasks.

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Constant Field Values

QueueWaitingTime

static final String QueueWaitingTime

Cumulative milliseconds across tasks of the time that a task was waiting on a queue pending execution.

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Constant Field Values

ServiceTime

static final String ServiceTime

Cumulative milliseconds across tasks that a task is being serviced by a worker thread (elapsed clock time from when the task was assigned to the thread until the task completes its work).

Note: For tasks which acquire resource lock(s), this does NOT include the time waiting to acquire the resource lock(s).

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Constant Field Values

CheckpointTime

static final String CheckpointTime

Cumulative elapsed time in milliseconds consumed by write tasks while checkpointing their indices.

Note: This time is already reported by the ServiceTime but is broken out here for additional detail. Checkpoint time can be most of the service time for a task since indices buffer writes and but are required to flush those writes to the backing during during a checkpoint.

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Constant Field Values

QueuingTime

static final String QueuingTime

Cumulative milliseconds across tasks between the submission of a task and its completion including any time spent waiting for resource locks, commit processing and any time spent servicing that task.

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Constant Field Values