In this blog post, we cover the top 10 VMware Tanzu KB articles in April, for common issues encountered by customers using GemFire, Redis, HAProxy, RabbitMQ, and more. From increasing socket-buffer-size to resolving thread exhaustion issues, our VMware Tanzu KB articles provide insightful and helpful guidance to customers. Learn how to set up and run multiple Redis server instances, setup HAProxy and Redis Sentinel for automatic failover, fix heap memory issues, and more.
1. How to increase the limit of the “socket-buffer-size” at the OS level on GemFire
This VMware Tanzu knowledge article provides step-by-step instructions on how to increase the “socket-buffer-size” limit at the OS level in GemFire. By following these instructions, you can resolve issues related to buffer size limitations and improve the performance of your GemFire applications.
2. How to setup and run multiple Redis server instances on a Linux host
This VMware Tanzu knowledge article explains how to set up and run multiple Redis server instances on a Linux host. By following the instructions provided, you can improve the availability and performance of your Redis applications.
This VMware Tanzu knowledge article provides instructions on how to configure HAProxy and Redis Sentinel to enable automatic failover between Redis Master and Slave servers. By following these instructions, you can ensure high availability and fault tolerance for your Redis applications.
4. How to setup Redis master and slave replication
This VMware Tanzu knowledge article explains how to set up Redis master and slave replication. By following the step-by-step instructions, you can ensure data redundancy and improve the availability of your Redis applications.
5. Queue can’t be deleted or purged in RabbitMQ
This VMware Tanzu knowledge article provides solutions for the common issue of not being able to delete or purge a queue in RabbitMQ. By following the instructions provided, you can resolve this issue and ensure the proper functioning of your RabbitMQ applications.
6. How to fix Heap Memory Issues
This VMware Tanzu knowledge article provides instructions on how to fix heap memory issues in GemFire. By following these instructions, you can improve the performance of your GemFire applications and avoid potential memory-related errors.
7. Why are messages lost when I restart a RabbitMQ broker
This VMware Tanzu knowledge article explains the reasons why messages may be lost when restarting a RabbitMQ broker and provides solutions to avoid this issue. By following the instructions provided, you can ensure the proper functioning of your RabbitMQ applications.
8. Message “AOF fsync is taking too long” being printed in Redis log
This VMware Tanzu knowledge article provides solutions to the common issue of the “AOF fsync is taking too long” message being printed in the Redis log. By following the instructions provided, you can ensure the proper functioning of your Redis applications.
This VMware Tanzu knowledge article explains the causes and solutions to the RabbitMQ crash issue with the message “Process rabbit_mgmt_external_stats with 0 neighbours crashed with reason: bad argument in call to erlang”. By following the instructions provided, you can resolve this issue and ensure the proper functioning of your RabbitMQ applications.
10. VMware GemFire: Resolving thread exhaustion issues and client timeouts
This VMware Tanzu knowledge article provides solutions to thread exhaustion issues and client timeouts in GemFire. By following the instructions provided, you can improve the performance and stability of your GemFire applications.

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