NAME

Paws::CloudWatchLogs - Perl Interface to AWS Amazon CloudWatch Logs

SYNOPSIS

  use Paws;

  my $obj = Paws->service('CloudWatchLogs');
  my $res = $obj->Method(
    Arg1 => $val1,
    Arg2 => [ 'V1', 'V2' ],
    # if Arg3 is an object, the HashRef will be used as arguments to the constructor
    # of the arguments type
    Arg3 => { Att1 => 'Val1' },
    # if Arg4 is an array of objects, the HashRefs will be passed as arguments to
    # the constructor of the arguments type
    Arg4 => [ { Att1 => 'Val1'  }, { Att1 => 'Val2' } ],
  );

DESCRIPTION

Amazon CloudWatch Logs API Reference

You can use Amazon CloudWatch Logs to monitor, store, and access your log files from Amazon Elastic Compute Cloud (Amazon EC2) instances, Amazon CloudTrail, or other sources. You can then retrieve the associated log data from CloudWatch Logs using the Amazon CloudWatch console, the CloudWatch Logs commands in the AWS CLI, the CloudWatch Logs API, or the CloudWatch Logs SDK.

You can use CloudWatch Logs to:

• Monitor Logs from Amazon EC2 Instances in Real-time: You can use CloudWatch Logs to monitor applications and systems using log data. For example, CloudWatch Logs can track the number of errors that occur in your application logs and send you a notification whenever the rate of errors exceeds a threshold you specify. CloudWatch Logs uses your log data for monitoring; so, no code changes are required. For example, you can monitor application logs for specific literal terms (such as "NullReferenceException") or count the number of occurrences of a literal term at a particular position in log data (such as "404" status codes in an Apache access log). When the term you are searching for is found, CloudWatch Logs reports the data to a Amazon CloudWatch metric that you specify.

• Monitor Amazon CloudTrail Logged Events: You can create alarms in Amazon CloudWatch and receive notifications of particular API activity as captured by CloudTrail and use the notification to perform troubleshooting.

• Archive Log Data: You can use CloudWatch Logs to store your log data in highly durable storage. You can change the log retention setting so that any log events older than this setting are automatically deleted. The CloudWatch Logs agent makes it easy to quickly send both rotated and non-rotated log data off of a host and into the log service. You can then access the raw log data when you need it.

METHODS

CancelExportTask(TaskId => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::CancelExportTask

Returns: nothing

  Cancels an export task if it is in C<PENDING> or C<RUNNING> state.

CreateExportTask(Destination => Str, From => Int, LogGroupName => Str, To => Int, [DestinationPrefix => Str, LogStreamNamePrefix => Str, TaskName => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::CreateExportTask

Returns: a Paws::CloudWatchLogs::CreateExportTaskResponse instance

  Creates an C<ExportTask> which allows you to efficiently export data
from a Log Group to your Amazon S3 bucket.

This is an asynchronous call. If all the required information is provided, this API will initiate an export task and respond with the task Id. Once started, DescribeExportTasks can be used to get the status of an export task. You can only have one active (RUNNING or PENDING) export task at a time, per account.

You can export logs from multiple log groups or multiple time ranges to the same Amazon S3 bucket. To separate out log data for each export task, you can specify a prefix that will be used as the Amazon S3 key prefix for all exported objects.

CreateLogGroup(LogGroupName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::CreateLogGroup

Returns: nothing

  Creates a new log group with the specified name. The name of the log
group must be unique within a region for an AWS account. You can create
up to 500 log groups per account.

You must use the following guidelines when naming a log group:

• Log group names can be between 1 and 512 characters long.

• Allowed characters are a-z, A-Z, 0-9, '_' (underscore), '-' (hyphen), '/' (forward slash), and '.' (period).

CreateLogStream(LogGroupName => Str, LogStreamName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::CreateLogStream

Returns: nothing

  Creates a new log stream in the specified log group. The name of the
log stream must be unique within the log group. There is no limit on
the number of log streams that can exist in a log group.

You must use the following guidelines when naming a log stream:

• Log stream names can be between 1 and 512 characters long.

• The ':' colon character is not allowed.

DeleteDestination(DestinationName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteDestination

Returns: nothing

  Deletes the destination with the specified name and eventually disables
all the subscription filters that publish to it. This will not delete
the physical resource encapsulated by the destination.

DeleteLogGroup(LogGroupName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteLogGroup

Returns: nothing

  Deletes the log group with the specified name and permanently deletes
all the archived log events associated with it.

DeleteLogStream(LogGroupName => Str, LogStreamName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteLogStream

Returns: nothing

  Deletes a log stream and permanently deletes all the archived log
events associated with it.

DeleteMetricFilter(FilterName => Str, LogGroupName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteMetricFilter

Returns: nothing

  Deletes a metric filter associated with the specified log group.

DeleteRetentionPolicy(LogGroupName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteRetentionPolicy

Returns: nothing

  Deletes the retention policy of the specified log group. Log events
would not expire if they belong to log groups without a retention
policy.

DeleteSubscriptionFilter(FilterName => Str, LogGroupName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::DeleteSubscriptionFilter

Returns: nothing

  Deletes a subscription filter associated with the specified log group.

DescribeDestinations([DestinationNamePrefix => Str, Limit => Int, NextToken => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeDestinations

Returns: a Paws::CloudWatchLogs::DescribeDestinationsResponse instance

  Returns all the destinations that are associated with the AWS account
making the request. The list returned in the response is ASCII-sorted
by destination name.

By default, this operation returns up to 50 destinations. If there are more destinations to list, the response would contain a nextToken value in the response body. You can also limit the number of destinations returned in the response by specifying the limit parameter in the request.

DescribeExportTasks([Limit => Int, NextToken => Str, StatusCode => Str, TaskId => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeExportTasks

Returns: a Paws::CloudWatchLogs::DescribeExportTasksResponse instance

  Returns all the export tasks that are associated with the AWS account
making the request. The export tasks can be filtered based on C<TaskId>
or C<TaskStatus>.

By default, this operation returns up to 50 export tasks that satisfy the specified filters. If there are more export tasks to list, the response would contain a nextToken value in the response body. You can also limit the number of export tasks returned in the response by specifying the limit parameter in the request.

DescribeLogGroups([Limit => Int, LogGroupNamePrefix => Str, NextToken => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeLogGroups

Returns: a Paws::CloudWatchLogs::DescribeLogGroupsResponse instance

  Returns all the log groups that are associated with the AWS account
making the request. The list returned in the response is ASCII-sorted
by log group name.

By default, this operation returns up to 50 log groups. If there are more log groups to list, the response would contain a nextToken value in the response body. You can also limit the number of log groups returned in the response by specifying the limit parameter in the request.

DescribeLogStreams(LogGroupName => Str, [Descending => Bool, Limit => Int, LogStreamNamePrefix => Str, NextToken => Str, OrderBy => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeLogStreams

Returns: a Paws::CloudWatchLogs::DescribeLogStreamsResponse instance

  Returns all the log streams that are associated with the specified log
group. The list returned in the response is ASCII-sorted by log stream
name.

By default, this operation returns up to 50 log streams. If there are more log streams to list, the response would contain a nextToken value in the response body. You can also limit the number of log streams returned in the response by specifying the limit parameter in the request. This operation has a limit of five transactions per second, after which transactions are throttled.

DescribeMetricFilters(LogGroupName => Str, [FilterNamePrefix => Str, Limit => Int, NextToken => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeMetricFilters

Returns: a Paws::CloudWatchLogs::DescribeMetricFiltersResponse instance

  Returns all the metrics filters associated with the specified log
group. The list returned in the response is ASCII-sorted by filter
name.

By default, this operation returns up to 50 metric filters. If there are more metric filters to list, the response would contain a nextToken value in the response body. You can also limit the number of metric filters returned in the response by specifying the limit parameter in the request.

DescribeSubscriptionFilters(LogGroupName => Str, [FilterNamePrefix => Str, Limit => Int, NextToken => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::DescribeSubscriptionFilters

Returns: a Paws::CloudWatchLogs::DescribeSubscriptionFiltersResponse instance

  Returns all the subscription filters associated with the specified log
group. The list returned in the response is ASCII-sorted by filter
name.

By default, this operation returns up to 50 subscription filters. If there are more subscription filters to list, the response would contain a nextToken value in the response body. You can also limit the number of subscription filters returned in the response by specifying the limit parameter in the request.

FilterLogEvents(LogGroupName => Str, [EndTime => Int, FilterPattern => Str, Interleaved => Bool, Limit => Int, LogStreamNames => ArrayRef[Str], NextToken => Str, StartTime => Int])

Each argument is described in detail in: Paws::CloudWatchLogs::FilterLogEvents

Returns: a Paws::CloudWatchLogs::FilterLogEventsResponse instance

  Retrieves log events, optionally filtered by a filter pattern from the
specified log group. You can provide an optional time range to filter
the results on the event C<timestamp>. You can limit the streams
searched to an explicit list of C<logStreamNames>.

By default, this operation returns as much matching log events as can fit in a response size of 1MB, up to 10,000 log events, or all the events found within a time-bounded scan window. If the response includes a nextToken, then there is more data to search, and the search can be resumed with a new request providing the nextToken. The response will contain a list of searchedLogStreams that contains information about which streams were searched in the request and whether they have been searched completely or require further pagination. The limit parameter in the request. can be used to specify the maximum number of events to return in a page.

GetLogEvents(LogGroupName => Str, LogStreamName => Str, [EndTime => Int, Limit => Int, NextToken => Str, StartFromHead => Bool, StartTime => Int])

Each argument is described in detail in: Paws::CloudWatchLogs::GetLogEvents

Returns: a Paws::CloudWatchLogs::GetLogEventsResponse instance

  Retrieves log events from the specified log stream. You can provide an
optional time range to filter the results on the event C<timestamp>.

By default, this operation returns as much log events as can fit in a response size of 1MB, up to 10,000 log events. The response will always include a nextForwardToken and a nextBackwardToken in the response body. You can use any of these tokens in subsequent GetLogEvents requests to paginate through events in either forward or backward direction. You can also limit the number of log events returned in the response by specifying the limit parameter in the request.

PutDestination(DestinationName => Str, RoleArn => Str, TargetArn => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::PutDestination

Returns: a Paws::CloudWatchLogs::PutDestinationResponse instance

  Creates or updates a C<Destination>. A destination encapsulates a
physical resource (such as a Kinesis stream) and allows you to
subscribe to a real-time stream of log events of a different account,
ingested through C<PutLogEvents> requests. Currently, the only
supported physical resource is a Amazon Kinesis stream belonging to the
same account as the destination.

A destination controls what is written to its Amazon Kinesis stream through an access policy. By default, PutDestination does not set any access policy with the destination, which means a cross-account user will not be able to call PutSubscriptionFilter against this destination. To enable that, the destination owner must call PutDestinationPolicy after PutDestination.

PutDestinationPolicy(AccessPolicy => Str, DestinationName => Str)

Each argument is described in detail in: Paws::CloudWatchLogs::PutDestinationPolicy

Returns: nothing

  Creates or updates an access policy associated with an existing
C<Destination>. An access policy is an IAM policy document that is used
to authorize claims to register a subscription filter against a given
destination.

PutLogEvents(LogEvents => ArrayRef[Paws::CloudWatchLogs::InputLogEvent], LogGroupName => Str, LogStreamName => Str, [SequenceToken => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::PutLogEvents

Returns: a Paws::CloudWatchLogs::PutLogEventsResponse instance

  Uploads a batch of log events to the specified log stream.

Every PutLogEvents request must include the sequenceToken obtained from the response of the previous request. An upload in a newly created log stream does not require a sequenceToken.

The batch of events must satisfy the following constraints:

• The maximum batch size is 1,048,576 bytes, and this size is calculated as the sum of all event messages in UTF-8, plus 26 bytes for each log event.

• None of the log events in the batch can be more than 2 hours in the future.

• None of the log events in the batch can be older than 14 days or the retention period of the log group.

• The log events in the batch must be in chronological ordered by their timestamp.

• The maximum number of log events in a batch is 10,000.

• A batch of log events in a single PutLogEvents request cannot span more than 24 hours. Otherwise, the PutLogEvents operation will fail.

PutMetricFilter(FilterName => Str, FilterPattern => Str, LogGroupName => Str, MetricTransformations => ArrayRef[Paws::CloudWatchLogs::MetricTransformation])

Each argument is described in detail in: Paws::CloudWatchLogs::PutMetricFilter

Returns: nothing

  Creates or updates a metric filter and associates it with the specified
log group. Metric filters allow you to configure rules to extract
metric data from log events ingested through C<PutLogEvents> requests.

The maximum number of metric filters that can be associated with a log group is 100.

PutRetentionPolicy(LogGroupName => Str, RetentionInDays => Int)

Each argument is described in detail in: Paws::CloudWatchLogs::PutRetentionPolicy

Returns: nothing

  Sets the retention of the specified log group. A retention policy
allows you to configure the number of days you want to retain log
events in the specified log group.

PutSubscriptionFilter(DestinationArn => Str, FilterName => Str, FilterPattern => Str, LogGroupName => Str, [RoleArn => Str])

Each argument is described in detail in: Paws::CloudWatchLogs::PutSubscriptionFilter

Returns: nothing

  Creates or updates a subscription filter and associates it with the
specified log group. Subscription filters allow you to subscribe to a
real-time stream of log events ingested through C<PutLogEvents>
requests and have them delivered to a specific destination. Currently,
the supported destinations are:

• An Amazon Kinesis stream belonging to the same account as the subscription filter, for same-account delivery.

• A logical destination (used via an ARN of Destination) belonging to a different account, for cross-account delivery.

• An Amazon Kinesis Firehose stream belonging to the same account as the subscription filter, for same-account delivery.

• An AWS Lambda function belonging to the same account as the subscription filter, for same-account delivery.

Currently there can only be one subscription filter associated with a log group.

TestMetricFilter(FilterPattern => Str, LogEventMessages => ArrayRef[Str])

Each argument is described in detail in: Paws::CloudWatchLogs::TestMetricFilter

Returns: a Paws::CloudWatchLogs::TestMetricFilterResponse instance

  Tests the filter pattern of a metric filter against a sample of log
event messages. You can use this operation to validate the correctness
of a metric filter pattern.

SEE ALSO

This service class forms part of Paws

BUGS and CONTRIBUTIONS

The source code is located here: https://github.com/pplu/aws-sdk-perl

Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues

cpanm Paws::SDK::Config

perl -MCPAN -e shell
install Paws::SDK::Config