Case Studies

Problem: After a successful installation of OpenSearch on a Red Hat Enterprise Linux 8.9 system, attempts to start the service fail with the error message: “Could not initialize class com.sun.jna.Native.” Additionally, there is a warning indicating the inability to load JNA (Java Native Access) native support library, resulting in disabled native methods. Solution: The following […]

Problem: A scheduled job did not trigger at its designated time, and upon attempting to run the job manually, the pods failed to come up in the backend. Reviewing the scheduler logs, the client did not find any specific errors. Process: Our expert investigated the following logs and data: Airflow Configuration: Relevant details of the […]

In iTop a high severity vulnerability CVE-2023-47626 was detected. When viewing or editing personal tokens, users should be aware that cross-site scripting attacks could occur. This vulnerability is resolved in version 3.1.1. For more information, visit https://avd.aquasec.com/nvd/2023/cve-2023-47626/.

Problem: A leading organization in the tech sector sought to optimize their database infrastructure by deploying MongoDB with a focus on scalability, security, and reliability. They required comprehensive guidance on deployment, load balancing, TLS implementation, role-based access control (RBAC), backup strategies, monitoring, and auditing to ensure a seamless transition to a production-ready environment. The client […]

Problem: The client requires Active Directory/LDAP integration for MongoDB user management similar to the Enterprise edition of MongoDB. This includes managing user permissions, creation, and deletion. Solution: To address the reported requirements, several potential solutions were put forth. Resolution 1. Utilize Percona MongoDB with LDAP Support: Implement LDAP support through Percona MongoDB. Conducted a Proof […]

Problem: The client has encountered an issue where a label, specifically “app_kubernetes_io_part_of”, is not being evaluated in the alert description or labels despite being present in the metric. They seek clarification on whether this behavior aligns with the expected functionality of Prometheus alerts. Process: The client provided a Prometheus rule with an alert definition that […]

Problem: The issue stems from confusion surrounding the Replication Factor (RF) in Apache Cassandra, where the documentation implies RF determines the quantity of data copies, but clarity on this matter is lacking. Process: To address this issue, in-depth investigation took place. The team explored the information provided by the client: Cassandra Configurations: Cassandra Version: 4.0.1 […]

Problem: The system is generating alerts indicating replication lag on the “productCatalog” PostgreSQL instance, specifically targeting the machine “pa3fnd02.” However, upon DBA investigation, there is no observable lag in the cluster, with both the leader (pa3fnd02) and the sync standby (pa3fnd01) reporting no lag. The discrepancy raises concerns about the persistence of alerts despite the […]

Problem: The organization is using Cassandra 4.0.x in its Production environment and requires tracking login and logout details from the Cassandra Audit logs. However, the Audit logs only record LOGIN_SUCCESS, LOGIN_ERROR, and UNAUTHORIZED_ATTEMPT events, with no mention of LOGOUT events. The organization seeks clarification on mechanisms for capturing logout-related entries. Solution: Cassandra does not inherently […]