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@truthbk truthbk released this 13 Sep 16:12
6.5.0
566e51a
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truthbk Jaime Fullaondo
GPG key ID: 4A3F4449DD305FF1
Learn about vigilant mode.

Please note that a critical bug identified in this release affecting container log collection when the container_collect_all was set, would lead to an agent deadlock. The severity of the issue has led us to remove the packages for the affected platforms (Linux and Docker). If you have upgraded to this version, on Linux or Docker we recommend you downgrade to 6.4.2.

Prelude

New Features

  • Autodiscovery: the docker and kubelet listeners will retry on error, to support starting the agent before your container runtime (host install)
  • Bump the default number of check runners to 4. This has some concurrency implications as we will now run multiple checks in parallel.
  • Kubernetes: to avoid hostname collisions between clusters, a new cluster_name option is available. It will be added as a suffix to the host alias detected from the kubelet in order to make these aliases unique across different clusters.
  • Docker image: handle docker/kubernetes secret files with a helper script.
  • The Node Agent can rely on the Datadog Cluster Agent to collect Node Labels.
  • Improved ECS fargate tagging:
    • Honor the docker_labels_as_tags option to extract custom tags
    • Make the cluster_name tag shorter
    • Add the short_image and container_id tags
    • Remove some noisy tags
    • Fix a lifecycle issue that caused missing tags
  • The live containers view can now retrieve containers directly from the kubelet, in order to support containerd and crio
  • Kubernetes events: setting event host tags to the related hosts, instead of the host collecting the events.
  • Added dedicated configuration parameters to send logs to a proxy by TCP. Note that logs_config.dd_url, logs_config.dd_port and logs_config.dev_mode_no_ssl are deprecated and will be unavailable soon, use the new parameters logs_config.logs_dd_url and logs_config.logs_no_ssl instead.
  • Added the possibility to send logs to Datadog using the port 443.

Enhancement Notes

  • Add more environment variables to the flare whitelist
  • When dd_url is set to app.datadoghq.eu, the infra Agent also sends data to versioned endpoints (similar to app.datadoghq.com)
  • Make all numbers on the status page more human readable (using unit and SI prefix when appropriate)
  • Display hostname provider and errors on the status page
  • Kubelet Autodiscovery: reduce logging when no change is detected
  • On Windows, the hostname_fqdn flag will now be honored, and the host reported by Datadog will be the fully qualified hostname.
  • Enable all configuration options to be set with env vars
  • Tags generated from GCE metadata may now be omitted by using collect_gce_tags configuration option.
  • Introduction of a new bucketed scheduler to enable multiple check workers to increase concurrency while spreading the load over the collection interval.
  • The 'status' command and 'status' page (in the GUI) now displays errors raised by the '__init__' method of a Python check.
  • Exclude the rancher pause container in the agent
  • On status page, allow users to know which instance of a check matches which yaml instance in configcheck page
  • The file_handle check reports 4 new metrics for feature parity with agent 5
  • The ntp check will now query multiple servers by default to be more resilient to servers returning wrong offsets. A now config option hosts is now available in the ntp check configuration file to
    allow users to change the list of ntp servers.
  • Tags and sources in the tagger-list command are now sorted to ease troubleshooting.
  • To allow concurrent execution of subprocess calls from python, we now save the thread state and release the GIL to unblock the interpreter . We can reaquire the GIL and restore the thread state when the subprocess call returns.
  • Add a new configuration option, named tag_value_split_separator, allowing the specified list of raw tags to have its value split by a given separator. Only applies to host tags, tags coming from container integrations. Does not apply to tags on dogstatsd metrics, and tags collected by other integrations.

Upgrade Notes

  • Autodiscovery now enforces the ac_exclude and ac_include filtering options for all listeners. Please double-check your exclusion patterns before upgrading and add inclusion patterns if some autodiscovered containers match these.

  • The introduction of multiple runners for checks implies check instances may now run concurrently. This should help the agent make better use of resources, in particular it will help prevent or reduce the side-effects of slow checks delaying the execution of all other checks.

    The change will affect custom checks not enforcing thread safety as they may, depending on the schedule, access unsynchronized structures concurrently with the corresponding data race ensuing. If you wish to run checks in a fully sequential fashion, you may set the check_runners option in your datadog.yaml config or via the DD_CHECK_RUNNERS to 1. Also, please feel free to reach out to us if you need more information or help with the new multiple runner/concurrency model.

    For more details please read the technical note in the datadog.yaml.

  • Prometheus custom checks are now limited to 2000 metrics by default to provide users control over the maximum number of custom metrics sent in the case of configuration errors or input changes. This limit can be changed with the max_returned_metrics option in the check configuration.

Bug Fixes

  • All Autodiscovery listeners now enforce the ac_exclude and ac_include filtering options, as described in the documentation.
  • Fixed "logs_config.frame_size" override that would not be taken into account.
  • collect io metrics for drives with path only (like: C:C0) on Windows
  • Fix API_KEY validation for 'additional_endpoints' by using their respective endpoint instead of the main one all the time.
  • Fix port ordering for the %%port_%% Autodiscovery tag on the docker listener
  • Fix missing ECS tags under some conditions
  • Change the name of the agent expvar from aggregator/ServiceCheckFlushed) to aggregator/ServiceCheckFlushed
  • Fix an issue where logs wouldn't be ingested if the API key contains a trailing new line
  • Setting the log level of the check subcommand using the -l flag was not setting the log level of python integrations.
  • Display embedded Python version in the status page instead of the version from the system Python.
  • Fixes a bug causing kube_service tags to be missing when kubernetes_map_services_on_ip is false.
  • The ntp check now handles negative offsets if the host time is in the future.
  • Fix a possible index out of range panic in Dogstatsd origin detection
  • Fix a verbose debug log caused by rescheduling services with no checks associated with them.

Other Notes

  • JMXFetch upgraded to 0.20.2; ships updated FasterXML.
  • Remove noisy and useless debug log line from contextResolver
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