[jira] [Closed] (FLINK-10445) CLI stuck with (potentially incorrect) SSL config

["Matthias (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-10445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias closed FLINK-10445.
----------------------------
    Resolution: Won't Fix

This issue was addressed as part of the Engine team's backlog grooming. The issue still appears in Flink \{{1.12.0}}.

I'm going to close this issue for now due to lack of resources to resolve it. It seems that there is no pressing need to resolve it as there was no activity since 2018. We can still reopen it if there are user requests.

> CLI stuck with (potentially incorrect) SSL config
> -------------------------------------------------
>
>                 Key: FLINK-10445
>                 URL: https://issues.apache.org/jira/browse/FLINK-10445
>             Project: Flink
>          Issue Type: Bug
>          Components: Command Line Client, Runtime / REST
>    Affects Versions: 1.5.4
>            Reporter: Nico Kruber
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> I created a keystore with
> {code}
> keytool -genkeypair -alias flink.internal -keystore internal.keystore -dname "CN=flink.internal" -storepass internal_store_password -keypass internal_key_password -keyalg RSA -keysize 4096
> {code}
> and adapted {{flink-conf.yaml}} to point to this with the following configuration:
> {code}
> security.ssl.enabled: true
> web.ssl.enabled: false
> security.ssl.keystore: /path/to/internal.keystore
> security.ssl.keystore-password: internal_store_password
> security.ssl.key-password: internal_key_password
> security.ssl.truststore: /path/to/internal.keystore
> security.ssl.truststore-password: internal_store_password
> {code}
> Now I know that this setup is supposed to work with Flink 1.6+ but probably wrong for 1.5. However, I was able to start up a Flink cluster and tried to submit a job via
> {code}
> ./bin/flink run -p 1 ./examples/streaming/WordCount.jar --input /home/nico/Projects/flink/LICENSE
> {code}
> and nothing happened. The CLI was stuck at
> {code}
> Starting execution of program
> Printing result to stdout. Use --output to specify output path.
> {code}
> and the job did not show up in the Web UI. I can also not find anything related to the job submission in the JM log.
> Debugging into {{CliFrontend}}, it eventually enters {{RestClient#submitRequest}} but doesn't seem to get a response. {{RestClient.MultipartRequest#writeTo}} does add a listener on the future and debugging in there, the {{ignored}} object handed to the lambda is a {{DefaultChannelPromise@1a884b08(failure(java.nio.channels.ClosedChannelException)}} which looks like we should react on. However, that alone is not really enough information on the cause of the error and requires further investigation.



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