We recently had an incident that Jira box could not resolve DNS properly after rebooting. The related errors in the logs are java.net.UnknownHostException. We run Jira as a container under the account named Jira. So I logged into the container as root to check the DNS settings. The settings look fine, and I can either ping … Continue reading Jira error: java.net.UnknownHostException
Priority Scheme is missing in Jira
'Priority Scheme' is a new feature that is introduced since Jira 7.6, which allows you to customize the priority for different projects. We recently upgraded a Jira box from 7.5.1 to 7.6.6, but we did not see the 'Priority Scheme' in the newer version. It turns out that it is disabled by default in some … Continue reading Priority Scheme is missing in Jira
A wrong way of using Vault
We recently had a Vault issue. It is Vault with HA, the data store is Consul. One day the Consul cluster went offline, and we noticed there are a few OOM errors in the logs. The servers have been running fine and no stress on the memory utilisation for quite a while. There must be a … Continue reading A wrong way of using Vault
Run hubot and hubot-slack behind proxy
If you are struggling to run hubot with Slack behind the corporate proxy. Here are two things that you can try: Set https_proxy environment variables, it has to be lower case. If the corporate proxy intercepts https (it means the proxy decrypts then re-encrypts the https traffics with its own certificate which most likely to … Continue reading Run hubot and hubot-slack behind proxy
Enterprise releases for Jira Software and Confluence
Atlassian announced Enterprise release for Jira and Confluence early this year. What does it mean to you? In my opion, if stability is the number one priority for you (not more features), then you should always go for the current enterprise release when you plan to upgrade your Jira and Confluence. What’s unique about an … Continue reading Enterprise releases for Jira Software and Confluence

