Dynatrace Managed release notes version 1.240
These release notes relate to Dynatrace Managed specific changes. To learn about general Dynatrace changes included in this Dynatrace Managed release, see:
New features and enhancements
OpenSSL library
OpenSSL library, used by Nginx service, was updated to version 1.1.1n for increased resilience and security.
Cluster notifications management via API
With release 1.240, we added cluster REST API to manage cluster notifications for:
Insufficient free disk space.
Insufficient cluster node hardware.
Insufficient free disk space for metric storage.
Transaction storage truncation.
Adaptive Load Reduction activation.
Kubernetes events
With release 1.240, the Early Adopter (EA) version of the Kubernetes events has been removed. The former opt-in for Kubernetes events analysis and alerting, is now part of the General Available (GA) Kubernetes events monitoring and subject to DDU consumption.
Due to DDU consumption of the GA version, tenants and/or Kubernetes endpoints using the EA version will no longer receive events, but can manually re-enable Kubernetes event monitoring. Former opt-in to the Kubernetes events integration for analysis and alerting will continue to receive Kubernetes events, by being automatically moved to the new GA version.
Operating systems support
Future Dynatrace Managed operating systems support changes
The following operating systems will no longer be supported starting 01 January 2024
- Linux: SUSE Enterprise Linux 12.4
- x86-64
- Vendor announcement
Past Dynatrace Managed operating systems support changes
The following operating systems are no longer supported since 01 July 2023
- Linux: SUSE Enterprise Linux 15.0
- x86-64
- Vendor announcement
The following operating systems are no longer supported since 01 November 2023
- Linux: SUSE Enterprise Linux 15.1, 15.2, 15.3
- x86-64
- Vendor announcement
- Last compatible version: 1.268
The following operating systems are no longer supported since 01 December 2023
- Linux: Red Hat Enterprise Linux 8.7, 9.1
- x86-64
- Vendor announcement
- Last compatible version: 1.268
- Linux: Oracle Linux 8.7, 9.1
- x86-64
- Last compatible version: 1.268
Resolved issues
General Availability (Build 1.240.161)
The 1.240 GA release contains 43 resolved issues (including 1 vulnerability resolution).
| Component | Resolved issues |
|---|---|
| Autonomous Cloud | 1 |
| Cloud automation solution | 1 |
| Cluster | 36 (1 vulnerability) |
| Cluster Management Console | 3 |
| Session Replay | 1 |
| User Interface | 1 |
Autonomous Cloud
- Fixed an issue where the Kubernetes cluster is displayed as UNKNOWN-KUBERNETES-CLUSTER-**** in custom charting. (APM-360630)
Cloud automation solution
- Due to a recent change in sprint 238 where we changed a setup flag value from METRICS to LABELS, we faced some problems and there for we need to fix any tile that has the new value. So the migrator checks for dashboards with SLO tiles and changes LABELS -> METRICS. Additionally we avoided using `No data found` in custom title since SLOs from remote env will show this title however data is shown in the tile. (APM-369109)
Cluster
- Vulnerability: Updated to new Marked library version for use in dashboard Markdown tiles. (APM-347587)
- Resolved issue that prevented adding a new node due to timeout while copying ActiveGate files. (APM-369659)
- A heap dump is no longer produced when the session list has a large amount of data. (RUM-5590)
- Fixed showing a warning message on the Kubernetes settings page, if Kubernetes events are enabled, while Log Monitoring v2 is disabled. (K8S-2150)
- Corrected issue with conversion goals in the RUM web application configuration API. (APM-359797)
- Fixed filtering for alternative network zones on the "Deployment status > Network zones" edit page for a single network zone. (APM-362134)
- ServiceNow notifications now support the ProblemDetailsText placeholder value, which was missing before. (APM-362970)
- You can now edit services within management zone permissions. (APM-363007)
- Generic root cause analysis rules now also consider closed events as they might explain the root cause of a problem. (APM-360327)
- In the past, 'Monitoring unavailable' events could have been raised for communication issues on a Dynatrace cluster even if a specific environment was not impacted. These events are now evaluated more precisely on an environment-level, so you are only notified in case your environment is experiencing a communication issue. (APM-359956)
- Actions of renamed apps will now display waterfall analysis button whenever data is available. (RUM-4956)
- Renamed config options responsible for severity detection to `LAConfigSeverityDetectionLimit_Bytes` and `LAConfigSeverityDetectionLinesLimit`. (APM-356991)
- Corrected issue in which, when agent injection was suppressed, in some cases processes were incorrectly reported as expected to be monitored and as being monitored when calling `/api/v1/entity/infrastructure/processes` API. (APM-360446)
- The `Configure tile in Data Explorer` button is now in the same location as the configure button for other tiles and now is reliably displayed when a tile is selected. (APM-355105)
- Mapped "Custom units" settings page to "Metrics" settings menu. (APM-360602)
- Alerting profile text and description filter now reflect the correct logical OR between them. (APM-362911)
- Fixed issue with metric selector's :timeshift operator that led to missing timeslots. (APM-360914)
- Root cause relevant Kubernetes events are now correctly handled by Davis and displayed in the Problems section. (K8S-1930)
- Corrected discrepancy in DDUs consumed that was displayed on consumption page. (APM-364703)
- User action properties are now properly displayed on the mobile waterfall (user action analysis). (RUM-5423)
- JVM heap memory chart no longer aggregates non-heap memory pools on Process details page. (APM-362323)
- Fixed resolution for missing tags and management zones from some entities on event and problems. (APM-361411)
- Total IO calculation has been corrected to no longer add asynchronous times. This may cause services to show changes in total IO times and/or alerts when used as a trigger even if the actual PurePaths did not change. (APM-359310)
- Fixed DateTime formatting in heatmap tooltip for timeframes that include more than one day. (APM-360542)
- It's no longer possible to set 0% value for an amount of captured session replays. (RUM-5345)
- Correct suggestions are now displayed for release product and release stage for the service filters. (APM-361736)
- It is now possible to ingest all characters of the Unicode 14.0 "Supplemental Symbols and Pictographs" as dimension values via the Metrics API v2. (APM-360016)
- Fixed the recently introduced rule to disable monitoring of "calico-node" processes that are not relevant to monitoring. (APM-360615)
- Fixed issue that prevented the creation of custom messaging services with queue entry point type set to some technology types. (APM-368026)
- Fixed an issue with "500 Internal Server Error" response of Anomaly detection - Disk events API. (APM-370270)
- Fixed the sorting order for some Kubernetes columns: Columns that contain numbers (for example, "4 Namespaces") are now sorted properly by count number. Previously, lexicographical sorting (1, 10, 2, 3, ...) was applied. (APM-359421)
- Resolved issue in which, when log events had more attributes than the allowed maximum (50 by default), sometimes the last added attributes were not the attributes cut off. (APM-356132)
- Migrated all markdown tiles with headers that do not contain a whitespace between the "#" and the header text to include it. Missing whitespace previously worked due to a bug in the markdown parser being used, this has since been fixed in the parser and a space is now required after the hash sign. (APM-369666)
- Improved efficiency and response time of filter operators in metric selectors that both apply an entity selector and filter a dimension called `Container` or `Process`. (APM-368260)
- The "Exception details" link no longer crashes (404) when using a single PurePath filter. (APM-360396)
- The "Refine" button tooltip/overlay information now more accurately reflects the sampling rate after refinement. (RUM-4967)
Cluster Management Console
- Cassandra backup is deleted only after new one is ready. (APM-355433)
- Improved performance of user creation in public REST API. (APM-367181)
- Improved error handling for unexpected storage issues. (APM-360014)
Session Replay
- Fixed masking rule max char length limit on conversion and added constraint to allow list rule attribute expressions. (APM-370039)
User Interface
- Enable CDN to fallback when failing. (APM-368835)
Update 168 (Build 1.240.168)
This cumulative update contains 2 resolved issues and all previously released updates for the 1.240 release.
Cluster
- Resolved issue that prevented adding a new node due to timeout while copying ActiveGate files. (APM-369659)
- Resolved an issue in which the export of a user session could lead to user sessions being exported multiple times. (APM-370258)
Update 176 (Build 1.240.176)
This cumulative update contains 2 resolved issues and all previously released updates for the 1.240 release.
| Component | Resolved issues |
|---|---|
| Cluster | 1 |
| Cluster Management Console | 1 |
Cluster
- Resolved issue causing unusable mobile provider page in some cases when rewrite rules were used to remove the protocol of web request URLs. (RUM-5788)
Cluster Management Console
- Resolved loss of system-critical configurations after partial Cassandra outage. (APM-371562)
Update 182 (Build 1.240.182)
This cumulative update contains 2 resolved issues and all previously released updates for the 1.240 release.
Cluster
- Resolved broken links in Markdown tiles. (APM-371433)
- Fixed problem with Cassandra JMX password synchronization. (APM-373473)