JIRA start error: the jira.home directory ‘/opt/jira_ home’ is already locked. JIRA startup failed, JIRA has been locked.

start JIRA, log appear the following error:

jira startup failed, jira has been locked.

error because there is a.jira-home.lock file under ‘/opt/jira_home’, delete and restart it. The.jira-home.lock file is designed to prevent multiple jira sites from running on the same machine and having the same jira.home set