Application driver Pod is not terminated when Spark is OOMKilled
维护者通常 1 天内回复
@razvan 已经在做这个了。
开始于 2026年10月2日。
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描述
Affected Stackable version
all
Affected Apache Spark-on-Kubernetes version
No response
Current and expected behavior
When a Spark driver is OOMKilled, the Pod doesn't terminate.
The vector container keeps running even after the Spark process is gone because no Vector shutdown file is generated. This container then prevents the Pod from being terminated.
A shutdown file for vector cannot be generated in this case because SIGKILL cannot be trapped.
A workaround for this problem is to use a livenessProbe on the vector container that connects to the driver's communication port (7078 by default).
Possible solution
A more robust and elegant solution is to turn the vector container into a native sidecar container.
Then Vector would be terminated whenever the main container is terminated. To still give it time collect any remainnig log files, a preStop hook can be used instead of the existing STACKABLE_POST_HOOK.
This solution is a breaking change for anyone using podOverrides to change the vector container. This needs to be documented in the changelog and the release notes.
This change requires Kubernetes >1.33 (which SDP doesn't officially support anymore) but there might still be users running it.
Additional context
No response
Environment
No response
Would you like to work on fixing this bug?
yes
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