yaooqinn opened a new pull request #28870:
URL: https://github.com/apache/spark/pull/28870
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### What changes were proposed in this pull request?
This PR port https://issues.apache.org/jira/browse/HIVE-14817 for spark
thrift server.
### Why are the changes needed?
When stopping the HiveServer2, the non-daemon thread stops the server from
terminating
```sql
"HiveServer2-Background-Pool: Thread-79" #79 prio=5 os_prio=31
tid=0x00007fde26138800 nid=0x13713 waiting on condition [0x0000700010c32000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at
org.apache.hive.service.cli.session.SessionManager$1.sleepInterval(SessionManager.java:178)
at
org.apache.hive.service.cli.session.SessionManager$1.run(SessionManager.java:156)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
Here is an example to reproduce:
https://github.com/yaooqinn/kyuubi/blob/master/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/spark/SparkSQLEngineApp.scala
Also, it causes issues as HIVE-14817 described which
### Does this PR introduce _any_ user-facing change?
NO
### How was this patch tested?
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