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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/11/24 13:58:55 UTC

[GitHub] [flink] lirui-apache opened a new pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

lirui-apache opened a new pull request #14203:
URL: https://github.com/apache/flink/pull/14203


   …ing on JM/TM
   
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   ## What is the purpose of the change
   
   When hive deps are missing on JM/TM, users get exception messages like:
   ```
   CorruptConfigurationException: Could not read the user code wrapper: invalid type code: 18
   ```
   This PR is to avoid corrupting the object output stream, so that we instead get exceptions like:
   ```
   ClassNotFoundException: org.apache.flink.connectors.hive.HiveSource
   ```
   
   
   ## Brief change log
   
     - Use separate SerDe for `JobConf` and `StorageDescriptor` in `JobConfWrapper` and `HiveTablePartition`.
     - Update `HiveTableInputFormat` to use `JobConfWrapper`.
   
   
   ## Verifying this change
   
   Existing tests
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
     - The serializers: yes
     - The runtime per-record code paths (performance sensitive): no
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
     - If yes, how is the feature documented? NA
   


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] StephanEwen edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
StephanEwen edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-733673544


   The change to `JobConfWrapper` looks good.
   
   For the `SerializableWrapper` - have you considered reusing `SerializedValue` 
    It is a similar, but serializes eagerly and deserializes lazily, which has a few advantages:
     - It makes it easier to supply a custom classloader when needed
     - Exceptions occur in the code that writes/access the value, not in the JavaSerialization stack. That is much easier to understand for users and to debug for us.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732991473


   Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
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   ## Automated Checks
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[GitHub] [flink] flinkbot commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] JingsongLi merged pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
JingsongLi merged pull request #14203:
URL: https://github.com/apache/flink/pull/14203


   


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] lirui-apache commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
lirui-apache commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-733690915


   @StephanEwen Thanks for reviewing. I wasn't aware of `SerializedValue`. And yes I think we should reuse it.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] StephanEwen commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
StephanEwen commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-734177915


   Can we put the caching logic into a `CachedSerializedValue`?
   
   I am afraid that changing the `SerializedValue` can break existing code which relies on the fact that a new copy of the object is created on de-serialization.
   
   Otherwise this looks good to me.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] lirui-apache commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
lirui-apache commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-734138103


   @StephanEwen @JingsongLi Would you mind have a look at the PR? Thanks.


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[GitHub] [flink] StephanEwen commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
StephanEwen commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-734325787


   Thanks!
   Looks good, +1 from my side!


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[GitHub] [flink] StephanEwen commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
StephanEwen commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-733673544


   The change to `JobConfWrapper` looks good.
   
   For the `SerializableWrapper` - have you considered reusing `SerializedValue` ? It is a similar, only that it lazily deserialized, which makes it easier to supply a custom classloader when needed.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] rmetzger commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
rmetzger commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-733922062


   Side note: I filed a ticket for the unrelated test failure: https://issues.apache.org/jira/browse/FLINK-20360
   
   


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] lirui-apache commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
lirui-apache commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-734227347


   Hi @StephanEwen , I have reverted the changes to `SerializedValue` and added `CachedSerializedValue` instead. Please have another look.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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[GitHub] [flink] lirui-apache commented on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
lirui-apache commented on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-733709249


   I made `SerializedValue` cache the deserialized value so that we don't deserialize repeatedly. I hope that's OK, otherwise I can do that in the hive classes.


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[GitHub] [flink] flinkbot edited a comment on pull request #14203: [FLINK-20241][hive] Improve exception message when hive deps are miss…

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #14203:
URL: https://github.com/apache/flink/pull/14203#issuecomment-732998162


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