Lucky Star online casino – login troubleshooting […]

Lucky Star online casino – login troubleshooting […]

I recently troubleshoot an interesting MySQL crash, and I think it is worth sharing (with the related bugs).  MySQL crashed when the disk was full, you can see the free disk graph...

1. Troubleshooting - Service account, role, role binding Issue Troubleshooting - Service account, role, role binding Issue You have a service account named dev-sa, a Role named dev-role-cka,...

1. Troubleshooting - Persistent Volume, Persistent Volume Claim - Issue Troubleshooting - Persistent Volume, Persistent Volume Claim - Issue my-pvc Persistent Volume Claim is stuck in a...

1. Troubleshooting - Pod Issue Troubleshooting - Pod Issue hello-kubernetes pod not running, fix that issue # @author D瓜哥 · https://www.diguage.com $ kubectl get pod NAME READY STATUS...

This post will explain how to troubleshoot MySQL HeatWave by accessing information in the MySQL error log table and the HeatWave audit log.

There’s a couple super common Postgres errors you’re likely to encounter while using this database, especially with an application or ORM. One is the PG::DiskFull: ERROR: could not resize shared...

There’s a couple super common Postgres errors you’re likely to encounter while using this database, especially with an application or ORM. One is the PG::DiskFull: ERROR: could not resize shared...

This post contains the slides from the talk that I gave at Brighton Ruby last week, along with the transcript and other information. I'll add the link to the video as soon as it's...

iptables是Linux系统的防火墙工具，有四种内建表：Filter、NAT、Mangle和Raw。每个表都有不同的chain和rule。iptables -L命令默认展示Filter表的规则，需要加-t参数才能显示其他表的规则。

最近重新梳理了JVM参数和垃圾收集器相关知识，通过分析问题现象和JVM参数，发现堆内存浪费和对象分布问题。根据分析结果，调整JVM参数和堆布局，增加垃圾回收频率。

一台机器频繁fullgc，每分钟一次。通过分析发现dubbo的NettyChannel存在内存泄露问题，怀疑是dubbo版本不兼容或老版本有问题。先重启应用，减少堆中NettyChannel占用。源码分析发现NettyPortUnificationServerHandler没有处理channelInactive或exceptionCaught，已有修复merge。应用中间件升级版本需要保持一致，避免已知问题。

最近在将一部分事务从服务A移到服务B时，发现服务B的http接口超时比例比服务A高很多。经过代码分析和网络布置差异性的排查，发现问题是由于服务B的http超时时间设置较短导致的。通过修改连接池参数和调整http调用方式，问题得到解决。