public sealed class LogMetric : IMessage<LogMetric>, IEquatable<LogMetric>, IDeepCloneable<LogMetric>, IBufferMessage, IMessageDescribes a logs-based metric. The value of the metric is the number of log entries that match a logs filter in a given time interval.
Logs-based metrics can also be used to extract values from logs and create a distribution of the values. The distribution records the statistics of the extracted values along with an optional histogram of the values as specified by the bucket options.
Inheritance
System.Object > LogMetricImplements
IMessage<LogMetric>, IEquatable<LogMetric>, IDeepCloneable<LogMetric>, IBufferMessage, IMessageNamespace
Google.Cloud.Logging.V2Assembly
Google.Cloud.Logging.V2.dll
Constructors
LogMetric()
public LogMetric()LogMetric(LogMetric)
public LogMetric(LogMetric other)| Parameter | |
|---|---|
| Name | Description |
other | LogMetric |
Properties
BucketOptions
public Distribution.Types.BucketOptions BucketOptions { get; set; }Optional. The bucket_options are required when the logs-based metric is
using a DISTRIBUTION value type and it describes the bucket boundaries
used to create a histogram of the extracted values.
| Property Value | |
|---|---|
| Type | Description |
Distribution.Types.BucketOptions | |
CreateTime
public Timestamp CreateTime { get; set; }Output only. The creation timestamp of the metric.
This field may not be present for older metrics.
| Property Value | |
|---|---|
| Type | Description |
Timestamp | |
Description
public string Description { get; set; }Optional. A description of this metric, which is used in documentation. The maximum length of the description is 8000 characters.
| Property Value | |
|---|---|
| Type | Description |
String | |
Filter
public string Filter { get; set; }Required. An advanced logs filter which is used to match log entries. Example:
"resource.type=gae_app AND severity>=ERROR"
The maximum length of the filter is 20000 characters.
| Property Value | |
|---|---|
| Type | Description |
String | |
LabelExtractors
public MapField<string, string> LabelExtractors { get; }Optional. A map from a label key string to an extractor expression which is
used to extract data from a log entry field and assign as the label value.
Each label key specified in the LabelDescriptor must have an associated
extractor expression in this map. The syntax of the extractor expression
is the same as for the value_extractor field.
The extracted value is converted to the type defined in the label
descriptor. If the either the extraction or the type conversion fails,
the label will have a default value. The default value for a string
label is an empty string, for an integer label its 0, and for a boolean
label its false.
Note that there are upper bounds on the maximum number of labels and the number of active time series that are allowed in a project.
| Property Value | |
|---|---|
| Type | Description |
MapField<String, String> | |
LogMetricName
public LogMetricName LogMetricName { get; set; }LogMetricName-typed view over the Name resource name property.
| Property Value | |
|---|---|
| Type | Description |
LogMetricName | |
Name
public string Name { get; set; }Required. The client-assigned metric identifier.
Examples: "error_count", "nginx/requests".
Metric identifiers are limited to 100 characters and can include only the
following characters: A-Z, a-z, 0-9, and the special characters
_-.,+!*',()%/. The forward-slash character (/) denotes a hierarchy of
name pieces, and it cannot be the first character of the name.
The metric identifier in this field must not be
URL-encoded.
However, when the metric identifier appears as the [METRIC_ID] part of a
metric_name API parameter, then the metric identifier must be
URL-encoded. Example: "projects/my-project/metrics/nginx%2Frequests".
| Property Value | |
|---|---|
| Type | Description |
String | |
UpdateTime
public Timestamp UpdateTime { get; set; }Output only. The last update timestamp of the metric.
This field may not be present for older metrics.
| Property Value | |
|---|---|
| Type | Description |
Timestamp | |
ValueExtractor
public string ValueExtractor { get; set; }Optional. A value_extractor is required when using a distribution
logs-based metric to extract the values to record from a log entry.
Two functions are supported for value extraction: EXTRACT(field) or
REGEXP_EXTRACT(field, regex). The argument are:
- field: The name of the log entry field from which the value is to be extracted.
- regex: A regular expression using the Google RE2 syntax (https://github.com/google/re2/wiki/Syntax) with a single capture group to extract data from the specified log entry field. The value of the field is converted to a string before applying the regex. It is an error to specify a regex that does not include exactly one capture group.
The result of the extraction must be convertible to a double type, as the distribution always records double values. If either the extraction or the conversion to double fails, then those values are not recorded in the distribution.
Example: REGEXP_EXTRACT(jsonPayload.request, ".*quantity=(\d+).*")
| Property Value | |
|---|---|
| Type | Description |
String | |
Version
[Obsolete]
public LogMetric.Types.ApiVersion Version { get; set; }Deprecated. The API version that created or updated this metric. The v2 format is used by default and cannot be changed.
| Property Value | |
|---|---|
| Type | Description |
LogMetric.Types.ApiVersion | |