tensorflow
_save_first_checkpoint in tf.keras.estimator.model_to_estimator should only be called on chief
when run in distribute mode, it will cause race condition of _save_first_checkpoint. So, we should judge if its task_type is chief.
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Hi @sharkdtu Can you please check @mihaimaruseac's comments and resolve conflicts?. Thank you!
Closing stale PR. Note that Estimator is no longer active, currently it's only updated as needed to fully deprecate from TF.
