fe2s opened a new pull request, #48275:
URL: https://github.com/apache/spark/pull/48275
…idecars
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### What changes were proposed in this pull request?
When deploying Spark pods on Kubernetes with sidecars, the reported
executor's exit code may be incorrect.
For example, the reported executor's exit code is 0, but the actual is 52
(OOM).
```
2024-09-25 02:35:29,383 ERROR TaskSchedulerImpl:
org.apache.spark.scheduler.TaskSchedulerImpl.logExecutorLoss(TaskSchedulerImpl.scala:972)
- Lost executor 1 on XXXXX: The executor with id 1 exited with exit code
0(success).
The API gave the following container statuses:
container name: fluentd
container image: docker-images-release.XXXXX.com/XXXXX/fluentd:XXXXX
container state: terminated
container started at: 2024-09-25T02:32:17Z
container finished at: 2024-09-25T02:34:52Z
exit code: 0
termination reason: Completed
container name: istio-proxy
container image:
docker-images-release.XXXXX.com/XXXXX-istio/proxyv2:XXXXX
container state: running
container started at: 2024-09-25T02:32:16Z
container name: spark-kubernetes-executor
container image:
docker-dev-artifactory.XXXXX.com/XXXXX/spark-XXXXX:XXXXX
container state: terminated
container started at: 2024-09-25T02:32:17Z
container finished at: 2024-09-25T02:35:28Z
exit code: 52
termination reason: Error
```
The `ExecutorPodsLifecycleManager.findExitCode()` looks for any terminated
container and may choose the sidecar instead of the main executor container.
I'm changing it to look for the executor container always.
Note, it may happen that the pod fails because of the failure of the sidecar
container while executor's container is still running, with my changes the
reported exit code will be -1 (`UNKNOWN_EXIT_CODE`).
### Why are the changes needed?
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To correctly report executor failure reason on UI, in the logs and for the
event listeners `SparkListener.onExecutorRemoved()`
### Does this PR introduce _any_ user-facing change?
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Note that it means *any* user-facing change including all aspects such as
the documentation fix.
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Yes, the executor's exit code is taken from the main container instead of
the sidecar.
### How was this patch tested?
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Added unit test and tested manually on the Kubernetes cluster by simulating
different types of executor failure (JVM OOM and container eviction due to disk
pressure on the node).
### Was this patch authored or co-authored using generative AI tooling?
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No
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