Logging 5.9

Before this update, there was a delay in restarting Ingesters when configuring LokiStack, because the Loki Operator sets the write-ahead log replay_memory_ceiling to zero bytes for the 1x.demo size. With this update, the minimum value used for the replay_memory_ceiling has been increased to avoid delays. (LOG-5614)

Before this update, monitoring the Vector collector output buffer state was not possible. With this update, monitoring and alerting the Vector collector output buffer size is possible that improves observability capabilities and helps keep the system running optimally. (LOG-5586)

CVE-2024-2961

CVE-2024-28182

CVE-2024-33599

CVE-2024-33600

CVE-2024-33601

CVE-2024-33602

Before this update, changes to the Logging Operator caused an error due to an incorrect configuration in the ClusterLogForwarder CR. As a result, upgrades to logging deleted the daemonset collector. With this update, the Logging Operator re-creates collector daemonsets except when a Not authorized to collect error occurs. (LOG-4910)

Before this update, the rotated infrastructure log files were sent to the application index in some scenarios due to an incorrect configuration in the Vector log collector. With this update, the Vector log collector configuration avoids collecting any rotated infrastructure log files. (LOG-5156)

Before this update, the Logging Operator did not monitor changes to the grafana-dashboard-cluster-logging config map. With this update, the Logging Operator monitors changes in the configmap objects, ensuring the system stays synchronized and responds effectively to config map modifications. (LOG-5308)

Before this update, an issue in the metrics collection code of the Logging Operator caused it to report stale telemetry metrics. With this update, the Logging Operator does not report stale telemetry metrics. (LOG-5426)

Before this change, the Fluentd out_http plugin ignored the no_proxy environment variable. With this update, the Fluentd patches the HTTP#start method of ruby to honor the no_proxy environment variable. (LOG-5466)

CVE-2022-48554

CVE-2023-2975

CVE-2023-3446

CVE-2023-3817

CVE-2023-5678

CVE-2023-6129

CVE-2023-6237

CVE-2023-7008

CVE-2023-45288

CVE-2024-0727

CVE-2024-22365

CVE-2024-25062

CVE-2024-28834

CVE-2024-28835

Before this update, the Loki Operator configured Loki to use path-based style access for the Amazon Simple Storage Service (S3), which has been deprecated. With this update, the Loki Operator defaults to virtual-host style without users needing to change their configuration. (LOG-5401)

Before this update, the Loki Operator did not validate the Amazon Simple Storage Service (S3) endpoint used in the storage secret. With this update, the validation process ensures the S3 endpoint is a valid S3 URL, and the LokiStack status updates to indicate any invalid URLs. (LOG-5395)

Before this update, a bug in LogQL parsing left out some line filters from the query. With this update, the parsing now includes all the line filters while keeping the original query unchanged. (LOG-5268)

Before this update, a prune filter without a defined pruneFilterSpec would cause a segfault. With this update, there is a validation error if a prune filter is without a defined puneFilterSpec. (LOG-5322)

Before this update, a drop filter without a defined dropTestsSpec would cause a segfault. With this update, there is a validation error if a prune filter is without a defined puneFilterSpec. (LOG-5323)

Before this update, the Loki Operator did not validate the Amazon Simple Storage Service (S3) endpoint URL format used in the storage secret. With this update, the S3 endpoint URL goes through a validation step that reflects on the status of the LokiStack. (LOG-5397)

Before this update, poorly formatted timestamp fields in audit log records led to WARN messages in Red Hat OpenShift Logging Operator logs. With this update, a remap transformation ensures that the timestamp field is properly formatted. (LOG-4672)

Before this update, the error message thrown while validating a ClusterLogForwarder resource name and namespace did not correspond to the correct error. With this update, the system checks if a ClusterLogForwarder resource with the same name exists in the same namespace. If not, it corresponds to the correct error. (LOG-5062)

Before this update, the validation feature for output config required a TLS URL, even for services such as Amazon CloudWatch or Google Cloud Logging where a URL is not needed by design. With this update, the validation logic for services without URLs are improved, and the error message are more informative. (LOG-5307)

Before this update, defining an infrastructure input type did not exclude logging workloads from the collection. With this update, the collection excludes logging services to avoid feedback loops. (LOG-5309)

In Logging 5.9, Fluentd, and Kibana are deprecated and are planned to be removed in Logging 6.0, which is expected to be shipped alongside a future release of OKD. Red Hat will provide critical and above CVE bug fixes and support for these components during the current release lifecycle, but these components will no longer receive feature enhancements. The Vector-based collector provided by the Red Hat OpenShift Logging Operator and LokiStack provided by the Loki Operator are the preferred Operators for log collection and storage. We encourage all users to adopt the Vector and Loki log stack, as this will be the stack that will be enhanced going forward.

In Logging 5.9, the Fields option for the Splunk output type was never implemented and is now deprecated. It will be removed in a future release.

Before this update, the logging must-gather could not collect any logs on a FIPS-enabled cluster. With this update, a new oc client is available in cluster-logging-rhel9-operator, and must-gather works properly on FIPS clusters. (LOG-4403)

Before this update, the LokiStack ruler pods could not format the IPv6 pod IP in HTTP URLs used for cross-pod communication. This issue caused querying rules and alerts through the Prometheus-compatible API to fail. With this update, the LokiStack ruler pods encapsulate the IPv6 pod IP in square brackets, resolving the problem. Now, querying rules and alerts through the Prometheus-compatible API works just like in IPv4 environments. (LOG-4709)

Before this fix, the YAML content from the logging must-gather was exported in a single line, making it unreadable. With this update, the YAML white spaces are preserved, ensuring that the file is properly formatted. (LOG-4792)

Before this update, when the ClusterLogForwarder CR was enabled, the Red Hat OpenShift Logging Operator could run into a nil pointer exception when ClusterLogging.Spec.Collection was nil. With this update, the issue is now resolved in the Red Hat OpenShift Logging Operator. (LOG-5006)

Before this update, in specific corner cases, replacing the ClusterLogForwarder CR status field caused the resourceVersion to constantly update due to changing timestamps in Status conditions. This condition led to an infinite reconciliation loop. With this update, all status conditions synchronize, so that timestamps remain unchanged if conditions stay the same. (LOG-5007)

Before this update, there was an internal buffering behavior to drop_newest to address high memory consumption by the collector resulting in significant log loss. With this update, the behavior reverts to using the collector defaults. (LOG-5123)

Before this update, the Loki Operator ServiceMonitor in the openshift-operators-redhat namespace used static token and CA files for authentication, causing errors in the Prometheus Operator in the User Workload Monitoring spec on the ServiceMonitor configuration. With this update, the Loki Operator ServiceMonitor in openshift-operators-redhat namespace now references a service account token secret by a LocalReference object. This approach allows the User Workload Monitoring spec in the Prometheus Operator to handle the Loki Operator ServiceMonitor successfully, enabling Prometheus to scrape the Loki Operator metrics. (LOG-5165)

Before this update, the configuration of the Loki Operator ServiceMonitor could match many Kubernetes services, resulting in the Loki Operator metrics being collected multiple times. With this update, the configuration of ServiceMonitor now only matches the dedicated metrics service. (LOG-5212)

CVE-2023-5363

CVE-2023-5981

CVE-2023-46218

CVE-2024-0553

CVE-2023-0567