timothy65535 32b18ba19c [KYUUBI #933] Enhance the detection mechanism for engine startup ... ### 1. Description EngineRef use exists znode to determine whether engine started successfully or not(use the last znode), there are inconsistencies in this. So, take an idea to improve the detection mechanism by adding the started sessionid to the znone. `EngineRef` will check the sessionid in a loop after a engine started. ### 2. Here are two options **Option I, add sesssionid to the data of znode**  **Option II, add sessionid to the path of znode**  ### 3. Solution In order to be consistent with the design of server znode, prefer to choose _Option II_ . **Demo** ``` /kyuubi - serviceUri=bigdata:10009;version=1.3.0-SNAPSHOT;sequence=0000000000 /kyuubi_USER/test - serviceUri=bigdata:39869;version=1.3.0-SNAPSHOT;session=8178069f-0b22-4d06-b1c0-908094769397;sequence=0000000000] ``` Closes #935 from timothy65535/ky-933. Closes #933 ab5d6d80 [timothy65535] add issue id d21cb990 [timothy65535] compatible with back 568acf21 [timothy65535] fix error 3db8ba7f [timothy65535] move EngineRef get to Discovery 827f3780 [timothy65535] rename get to getEngineBySessionId 88229314 [timothy65535] update session id using internal ab06adf8 [timothy65535] improve EngineRef get logic 6a1cc39a [timothy65535] update session version c94b6e55 [timothy65535] rename sessionId to createSessionId 0cc6aae2 [timothy65535] update ha conf d24a152f [timothy65535] update ha conf 1a67c864 [timothy65535] fix initialize sql suite b3b502de [timothy65535] [KYUUBI #933] Enhance the detection mechanism for engine startup Authored-by: timothy65535 <timothy65535@163.com> Signed-off-by: Kent Yao <yao@apache.org>		2021-08-19 11:10:21 +08:00
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src	[KYUUBI #933] Enhance the detection mechanism for engine startup	2021-08-19 11:10:21 +08:00
pom.xml	[BUILD] Bump 1.4.0-SNAPSHOT	2021-08-17 01:39:06 +08:00