Nico Kruber created FLINK-10445:
-----------------------------------
Summary: 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: Client, REST
Affects Versions: 1.5.4
Reporter: Nico Kruber
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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