Details
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Type:
Bug
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Status: Closed (View Workflow)
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 2.7.4
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Fix Version/s: 2.7.5
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Labels:None
Description
Background
I run an application in Tomcat that is connected to Aurora DB Cluster comprised of reader and writer instance. I use MariaDB JDBC Driver and Hikari connection pool.
Problem
The application occasionally stops working. In the application thread dump I found that MariaDb-failover threads are in a dead-lock state, and that in turn blocks core connection adder Hikari thread. As a consequence no new database connection can be created.