pan3793 opened a new pull request, #6081:
URL: https://github.com/apache/kyuubi/pull/6081
# :mag: Description
## Issue References ๐
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create one or -->
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When deploying Kyuubi as StatefulSet on Kubernetes, during the rolling
upgrade, the Pod stops and creates one by one, and there are a few durations
that the Pod is not available, then `UnknownHostException` is returned.
```
2024-02-23 23:04:45 [ERROR] [KyuubiRestFrontendService-122]
org.apache.kyuubi.client.RestClient#189 - Error:
java.net.UnknownHostException:
kyuubi-2.kyuubi-headless.spark.svc.cluster.local
at java.net.InetAddress$CachedAddresses.get(InetAddress.java:764)
~[?:1.8.0_382]
...
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
~[httpclient-4.5.14.jar:4.5.14]
at org.apache.kyuubi.client.RestClient.doRequest(RestClient.java:181)
~[kyuubi-rest-client-1.8.0.17.jar:1.8.0.17]
at org.apache.kyuubi.client.RestClient.get(RestClient.java:80)
~[kyuubi-rest-client-1.8.0.17.jar:1.8.0.17]
...
at
org.apache.kyuubi.client.BatchRestApi.getBatchLocalLog(BatchRestApi.java:104)
~[kyuubi-rest-client-1.8.0.17.jar:1.8.0.17]
at
org.apache.kyuubi.server.api.v1.InternalRestClient.$anonfun$getBatchLocalLog$1(InternalRestClient.scala:57)
~[kyuubi-server_2.12-1.8.0.17.jar:1.8.0.17]
at
org.apache.kyuubi.server.api.v1.InternalRestClient.withAuthUser(InternalRestClient.scala:81)
~[kyuubi-server_2.12-1.8.0.17.jar:1.8.0.17]
at
org.apache.kyuubi.server.api.v1.InternalRestClient.getBatchLocalLog(InternalRestClient.scala:57)
~[kyuubi-server_2.12-1.8.0.17.jar:1.8.0.17]
at
org.apache.kyuubi.server.api.v1.BatchesResource.$anonfun$getBatchLocalLog$4(BatchesResource.scala:424)
~[kyuubi-server_2.12-1.8.0.17.jar:1.8.0.17]
```
## Describe Your Solution ๐ง
Treat `UnknownHostException` as a retriable exception to tolerant the
transient Pod FQDN not available cases during rolling upgrade on K8s.
## Types of changes :bookmark:
<!--- What types of changes does your code introduce? Put an `x` in all the
boxes that apply: -->
- [x] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
## Test Plan ๐งช
Pass GA.
---
# Checklist ๐
<!--- Go over all the following points, and put an `x` in all the boxes that
apply. -->
<!--- If you're unsure about any of these, don't hesitate to ask. We're here
to help! -->
- [x] This patch was not authored or co-authored using [Generative
Tooling](https://www.apache.org/legal/generative-tooling.html)
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