[
https://issues.apache.org/jira/browse/FLINK-35103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
SwathiChandrashekar updated FLINK-35103:
----------------------------------------
Description:
Currently, whenever we have flink failures, we need to manually do the triaging
by looking into the flink logs even for the initial analysis. It would have
been better, if the user/admin directly gets the initial failure information
even before looking into the logs.
To address this, we've developed a comprehensive solution via a plugin aimed at
helping fetch the Flink failures, ensuring critical data is preserved for
subsequent analysis and action.
In Kubernetes environments, troubleshooting pod failures can be challenging
without checking the pod/flink logs. Fortunately, Kubernetes offers a robust
mechanism to enhance debugging capabilities by leveraging the
/dev/termination-log file.
[https://kubernetes.io/docs/tasks/debug/debug-application/determine-reason-pod-failure/]
By writing failure information to this log, Kubernetes automatically
incorporates it into the container status, providing administrators and
developers with valuable insights into the root cause of failures.
Our solution capitalizes on this Kubernetes feature to seamlessly integrate
Flink failure reporting within the container ecosystem. Whenever a Flink
encounters an issue, our plugin dynamically captures and logs the pertinent
failure information into the /dev/termination-log file. This ensures that
Kubernetes recognizes and propagates the failure status throughout the
container ecosystem, enabling efficient monitoring and response mechanisms.
By leveraging Kubernetes' native functionality in this manner, our plugin
ensures that Flink failure incidents are promptly identified and reflected in
the pod status. This technical integration streamlines the debugging process,
empowering operators to swiftly diagnose and address issues, thereby minimizing
downtime and maximizing system reliability.
In-order to make this plugin generic, by default it doesn't do any action. We
can configure this by using
*external.log.factory.class :
org.apache.flink.externalresource.log.K8SSupportTerminationLog*
in our flink-conf file.
This will be present in the plugins directory
PFA for the pod status
!screenshot-1.png!
was:
Currently, whenever we have flink failures, we need to manually do the triaging
by looking into the flink logs even for the initial analysis. It would have
been better, if the user/admin directly gets the initial failure information
even before looking into the logs.
To address this, we've developed a comprehensive solution via a plugin aimed at
helping fetch the Flink failures, ensuring critical data is preserved for
subsequent analysis and action.
In Kubernetes environments, troubleshooting pod failures can be challenging
without checking the pod/flink logs. Fortunately, Kubernetes offers a robust
mechanism to enhance debugging capabilities by leveraging the
/dev/termination-log file.
[https://kubernetes.io/docs/tasks/debug/debug-application/determine-reason-pod-failure/]
By writing failure information to this log, Kubernetes automatically
incorporates it into the container status, providing administrators and
developers with valuable insights into the root cause of failures.
Our solution capitalizes on this Kubernetes feature to seamlessly integrate
Flink failure reporting within the container ecosystem. Whenever a Flink
encounters an issue, our plugin dynamically captures and logs the pertinent
failure information into the /dev/termination-log file. This ensures that
Kubernetes recognizes and propagates the failure status throughout the
container ecosystem, enabling efficient monitoring and response mechanisms.
By leveraging Kubernetes' native functionality in this manner, our plugin
ensures that Flink failure incidents are promptly identified and reflected in
the pod status. This technical integration streamlines the debugging process,
empowering operators to swiftly diagnose and address issues, thereby minimizing
downtime and maximizing system reliability.
In-order to make this plugin generic, by default it doesn't do any action. We
can configure this by using
*external.log.factory.class :
org.apache.flink.externalresource.log.K8SSupportTerminationLog*
This will be present in the plugins directory
PFA for the pod status
!screenshot-1.png!
> [Plugin] Enhancing Flink Failure Management in Kubernetes with Dynamic
> Termination Log Integration
> --------------------------------------------------------------------------------------------------
>
> Key: FLINK-35103
> URL: https://issues.apache.org/jira/browse/FLINK-35103
> Project: Flink
> Issue Type: Improvement
> Components: API / Core
> Reporter: SwathiChandrashekar
> Priority: Not a Priority
> Fix For: 1.20.0
>
> Attachments: Status-pod.png, screenshot-1.png
>
>
> Currently, whenever we have flink failures, we need to manually do the
> triaging by looking into the flink logs even for the initial analysis. It
> would have been better, if the user/admin directly gets the initial failure
> information even before looking into the logs.
> To address this, we've developed a comprehensive solution via a plugin aimed
> at helping fetch the Flink failures, ensuring critical data is preserved for
> subsequent analysis and action.
>
> In Kubernetes environments, troubleshooting pod failures can be challenging
> without checking the pod/flink logs. Fortunately, Kubernetes offers a robust
> mechanism to enhance debugging capabilities by leveraging the
> /dev/termination-log file.
> [https://kubernetes.io/docs/tasks/debug/debug-application/determine-reason-pod-failure/]
> By writing failure information to this log, Kubernetes automatically
> incorporates it into the container status, providing administrators and
> developers with valuable insights into the root cause of failures.
> Our solution capitalizes on this Kubernetes feature to seamlessly integrate
> Flink failure reporting within the container ecosystem. Whenever a Flink
> encounters an issue, our plugin dynamically captures and logs the pertinent
> failure information into the /dev/termination-log file. This ensures that
> Kubernetes recognizes and propagates the failure status throughout the
> container ecosystem, enabling efficient monitoring and response mechanisms.
> By leveraging Kubernetes' native functionality in this manner, our plugin
> ensures that Flink failure incidents are promptly identified and reflected in
> the pod status. This technical integration streamlines the debugging process,
> empowering operators to swiftly diagnose and address issues, thereby
> minimizing downtime and maximizing system reliability.
>
> In-order to make this plugin generic, by default it doesn't do any action.
> We can configure this by using
> *external.log.factory.class :
> org.apache.flink.externalresource.log.K8SSupportTerminationLog*
> in our flink-conf file.
> This will be present in the plugins directory
> PFA for the pod status
> !screenshot-1.png!
>
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
