Zheng Yang created KYLIN-4290:
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Summary: Add file lock to kylin startup script to avoid starting
multiple instances on one node
Key: KYLIN-4290
URL: https://issues.apache.org/jira/browse/KYLIN-4290
Project: Kylin
Issue Type: Improvement
Components: Tools, Build and Test
Affects Versions: v3.0.0, v2.6.5
Reporter: Zheng Yang
Fix For: v2.6.0
When we restart the Kylin instance, due to the slow start of kylin, some
monitoring scripts fail to detect the surviving kylin, and will also start the
kylin instance. As a result, there are multiple kylin instances on a node.
By adding a file lock to the startup script (kylin.sh), it is guaranteed that
only one kylin instance will be started when concurrent startup on a node.
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