[GitHub] [kyuubi] hyperbolic2346 commented on issue #4817: :memo: Fix/Add High Availability documentation for Kubernetes and etcd

["hyperbolic2346 (via GitHub)" <gi...@apache.org>]

hyperbolic2346 commented on issue #4817:
URL: https://github.com/apache/kyuubi/issues/4817#issuecomment-1572264428

   To keep this thread updated, I attempted to verify that multiple pods would provide HA, but only one of the pods knew about the session.
   ```
   $ curl -v 127.0.0.1:10099/api/v1/sessions
   *   Trying 127.0.0.1:10099...
   * Connected to 127.0.0.1 (127.0.0.1) port 10099 (#0)
   > GET /api/v1/sessions HTTP/1.1
   > Host: 127.0.0.1:10099
   > User-Agent: curl/7.88.1
   > Accept: */*
   > 
   < HTTP/1.1 200 OK
   < Date: Thu, 01 Jun 2023 05:11:19 GMT
   < Content-Type: application/json
   < Content-Length: 3990
   < Server: Jetty(9.4.50.v20221201)
   < 
   * Connection #0 to host 127.0.0.1 left intact
   [{"identifier":"7eb813ea-014b-4b1c-a0c8-35f4064a0303","user":"anonymous","ipAddr":"192.168.7.32","conf":{"kyuubi.session.real.user":"anonymous","spark.kubernetes.namespace":"default","sessionType":"INTERACTIVE","kyuubi.session.name":"test_cluster"
   ...
   ```
   and the other pod 
   ```
   $ curl -v 127.0.0.1:10099/api/v1/sessions
   *   Trying 127.0.0.1:10099...
   * Connected to 127.0.0.1 (127.0.0.1) port 10099 (#0)
   > GET /api/v1/sessions HTTP/1.1
   > Host: 127.0.0.1:10099
   > User-Agent: curl/7.88.1
   > Accept: */*
   > 
   < HTTP/1.1 200 OK
   < Date: Thu, 01 Jun 2023 05:11:36 GMT
   < Content-Type: application/json
   < Content-Length: 2
   < Server: Jetty(9.4.50.v20221201)
   < 
   * Connection #0 to host 127.0.0.1 left intact
   ```
   
   So it seem that zookeeper or now etcd, if I am reading the PR from @hddong correctly, is required for HA.


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