Hello Nutan!
I will not be worried about this mysql's AbandonedConnectionCleanupThread. This threads is created by the MYSQL JDBC Driver to clean-up the orphaed/abandoned connections in the application. It's a safety net.
Abandoned connection cleanup thread
PRIORITY : 5
THREAD ID : 0X00007F45DFE36800
NATIVE ID : 0X672
NATIVE ID (DECIMAL) : 1650
STATE : TIMED_WAITING
stackTrace:
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(java.base@11.0.14/Native Method)
- waiting on <no object reference available>
at java.lang.ref.ReferenceQueue.remove(java.base@11.0.14/ReferenceQueue.java:155)
- waiting to re-lock in wait() <0x0000000700c039e0> (a java.lang.ref.ReferenceQueue$Lock)
at com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)
Locked ownable synchronizers:
- None
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