Data Analytics

Problem: The customer is experiencing the “exec format error” issue when using Prometheus node exporter versions 1.5.0 and 1.6.0 on ARM64 machines, particularly Graviton-type instances in an AWS environment. This error is observed in the node exporter pods running as a DaemonSet in a Kubernetes cluster with nodes having ARM64 architecture. Process: The experts requested […]

Problem: The user was unable to reach the application page and received the error ‘Unauthenticated Page’. Process: Step 1: Initial Investigation The security issue pertains to an unauthenticated page within the Airflow version 2.5.2 instance. This unauthenticated page poses a potential security risk, as it can be accessed without proper authentication, potentially exposing sensitive information […]

Problem: The client, deploying the Prometheus operator using a community helm chart, encountered a security concern regarding the permissions granted to the Prometheus operator. Upon closer examination, it was discovered that the community helm chart provided overly permissive access rights, particularly with ‘*’ permissions for secrets and configmaps, as well as delete permissions for default […]

Problem: A client with an Elasticsearch cluster consisting of three nodes was experiencing a recurring issue where one of the nodes is disconnecting from the cluster automatically. This disruption was resulting in numerous unassigned shards, impacting the overall stability and performance of the Elasticsearch environment. Process: Data Collection for Further Analysis: Request: Provide detailed system […]

Problem: The client’s Elastic server is experiencing sporadic crashes, evident from StackOverflowError logs linked to “GraphTokenStreamFiniteStrings.” While a potential fix exists in Lucene 9.7, the product’s certification with Elastic 7.17 using Lucene 8.11.1 complicates the implementation of the fix. The client seeks assistance to evaluate the possibility of backporting Lucene 9.7 changes to Lucene 8.11.1. […]

Problem: The problem identified in Apache Airflow version 2.5.0 was the lack of password confirmation during password changes, posing a significant security risk to users. This vulnerability could potentially lead to unauthorized access and session hijacking within the Airflow application. Solution: Based on the client’s request and the provided information, the recommended solution steps to […]

Problem: The client was facing a situation where fluent-bit containers jeopardized the k8s host by overusing the temporary space which is on the host. Solution: After the investigation, the expert team suggested the next solution to the client: Resource Limitations: Checked for resource limitations on the fluent-bit containers. Insufficient CPU or memory limits could have […]

Problem: The production OpenSearch cluster encountered frequent shutdowns due to Out of Memory (OOM) errors across all four nodes. The exact cause of the OOM issue needed further investigation, requiring specific data and logs to diagnose the root cause. Process: Resource Assessment: Evaluate RAM, CPU, and disk usage on each node to identify potential resource […]

Problem: Java client for Apache Kafka is missing error logs when attempting to publish messages to a Kafka topic that is full on the broker side. Despite expecting error logs in such cases, the logs only show warnings and traces, hindering quick identification of the root cause. Solution: Main solution steps suggested to resolve the […]