 [](https://github.com/yaooqinn/kyuubi/pull/382)     [❨?❩](https://pullrequestbadge.com/?utm_medium=github&utm_source=yaooqinn&utm_campaign=badge_info)<!-- PR-BADGE: PLEASE DO NOT REMOVE THIS COMMENT -->
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### _Why are the changes needed?_
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In CONNECTION level, it's better to release session if the connection is closed.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#382 from ulysses-you/KYUUBI-381.
cddba6c [ulysses-you] type
a3fd691 [ulysses-you] increase engine init timeout
5030553 [ulysses-you] reload system properties
7a2e72f [ulysses-you] clean code
1034409 [ulysses-you] stopped
d2a001a [ulysses-you] address comment
4eb62de [ulysses-you] 60s
64d0f16 [ulysses-you] fix test
4f10d34 [ulysses-you] sleep
62dc9f9 [ulysses-you] add new stop method
77be261 [ulysses-you] remove config
fd9b73c [ulysses-you] add time sleep
209a59e [ulysses-you] fix test
88ed744 [ulysses-you] import
90015e9 [ulysses-you] simply
311fce3 [ulysses-you] fix test
7af3f72 [ulysses-you] fix test
e91377c [ulysses-you] Merge branch 'master' of https://github.com/yaooqinn/kyuubi into KYUUBI-381
f77ddbe [ulysses-you] nit
2173222 [ulysses-you] init
Authored-by: ulysses-you <ulyssesyou18@gmail.com>
Signed-off-by: ulysses-you <ulyssesyou18@gmail.com>