Managing and troubleshooting complex database and system environments can be challenging, especially without access to comprehensive resources and expert guidance. Fortunately, VMware offers a wealth of knowledge and support through its VMware Knowledge Base (KB) articles. These articles provide valuable insights and practical tips for managing and optimizing VMware Tanzu, PostgreSQL, Greenplum, and Data Domain systems. In this post, we’ve curated some of the most helpful KB articles related to troubleshooting and resolving common issues. Whether you’re dealing with a failed Patroni PostgreSQL instance, an error in running ipmitool, or the need to reclaim space from a Data Domain system, these articles offer step-by-step instructions and solutions to help you get the job done. Read on to explore our collection of VMware KB articles and empower yourself with the knowledge and skills to manage your database and system environments with confidence.
This VMware Tanzu knowledge base article provides a step-by-step guide on how to recover a Patroni PostgreSQL instance when it fails to start. It covers common reasons for the failure and walks through the process of checking the log files, identifying the root cause, and applying the appropriate solution.
This VMware Tanzu knowledg article explains how to delete data and reclaim space from a Data Domain System using gpddboost and NFS exports. It covers the necessary preparations before deleting data, the process of deleting the data, and how to reclaim the space on the system.
This VMware Tanzu knowledge article provides a detailed guide on how to set up a three-node Patroni cluster using etcd in Postgres. It includes the necessary configurations, steps to initialize and configure the etcd cluster, and how to join the Patroni nodes to the etcd cluster.
This VMware Tanzu knowledge base article explains how to deal with processes in state “D” (uninterruptible sleep), which is usually caused by input/output (IO) operations. It covers identifying the problematic process, checking the log files, and applying the appropriate solution to resolve the issue.
This VMware Tanzu knowledge article addresses the Greenplum error that occurs when a current transaction is aborted, and commands are ignored until the end of the transaction block. It covers the common reasons for this error and provides the appropriate solutions to resolve the issue.
- Error occurs while running ipmitool or ipmiutil: “Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0”
This VMware Tanzu knowledge article provides solutions to the error that occurs when running ipmitool or ipmiutil, which says, “Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0.” It includes identifying the root cause of the issue and applying the appropriate solution to resolve it.
This VMware Tanzu knowledge article provides a step-by-step guide on how to set Postgresql parameters in a Patroni cluster. It covers the necessary configurations, steps to update the Postgresql parameters, and how to apply the changes to the Patroni cluster.
This VMware Tanzu knowledge base article provides instructions on how to terminate idle connections in Postgres 11.x and above. It covers identifying idle connections, terminating them, and ensuring the process is automated.
This VMware Tanzu knowledge article explains how to remove and add etcd members to an existing etcd cluster in VMware Postgres. It covers the necessary preparations, steps to remove and add etcd members, and how to ensure the process is automated.
- Greenplum error “ERROR: Invalid Memory Alloc Request Size 1073742081 (context ‘xxxx’) (mcxt.c:1257) (mcxt.c:477)”
This VMware Tanzu knowledge article provides solutions to the Greenplum error that says, “ERROR: Invalid Memory Alloc Request Size 1073742081 (context ‘xxxx’) (mcxt.c:1257) (mcxt.c:477).” It covers the common reasons for this error and provides the appropriate solutions to resolve the error.
Our curated solutions are available 24/7 through various Tanzu resources. Make sure to also check them out:
- Knowledge Base and Support Community – find solutions, ask questions, get answers.
- Product Documentation : Explore a full range of technical documentation including manuals, release notes, and more.
- Tech Zone : Go from zero to hero with the latest VMware technical resources.
- Content library: We have webinars, white papers and e-books!
- Tanzu YouTube Channel and KB TV YouTube Channel: where you can find helpful videos, related to knowledge articles and Tanzu products and solutions.