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https://issues.apache.org/jira/browse/MADLIB-1371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16901457#comment-16901457
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Nikhil commented on MADLIB-1371:
--------------------------------
PR has been merged https://github.com/apache/madlib/pull/424
> DL: Exception during madlib_keras_fit when model_arch_id is passed as NULL
> --------------------------------------------------------------------------
>
> Key: MADLIB-1371
> URL: https://issues.apache.org/jira/browse/MADLIB-1371
> Project: Apache MADlib
> Issue Type: Bug
> Components: Deep Learning
> Reporter: Nikhil
> Priority: Major
> Fix For: v1.17
>
>
> While calling madlib_keras_fit, if we pass in the model arch id as NULL, we
> get the following exception
> {code}
> SELECT madlib_keras_fit(
> 'cifar_10_sample_batched',
> 'keras_saved_out',
> 'model_arch',
> NULL, --null model arch
> $$ optimizer=SGD(lr=0.01, decay=1e-6, nesterov=True),
> loss='categorical_crossentropy', metrics=['mae']$$::text,
> $$ batch_size=2, epochs=1, verbose=0 $$::text,
> 3,
> NULL);
> LINE 1: ...el_arch, model_weights FROM model_arch WHERE model_id = None
> ^
> QUERY: SELECT model_arch, model_weights FROM model_arch WHERE model_id = None
> CONTEXT: Traceback (most recent call last):
> PL/Python function "madlib_keras_fit", line 21, in <module>
> madlib_keras.fit(**globals())
> PL/Python function "madlib_keras_fit", line 42, in wrapper
> PL/Python function "madlib_keras_fit", line 95, in fit
> PL/Python function "madlib_keras_fit"
> {code}
>
> We should instead error out gracefully and print a more meaningful error
> message
>
>
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