# Trainer epoch does not go through all training data?

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**Category:** Beginners\
**Created:** [January 22, 2021, 2:21pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Ftrainer-epoch-does-not-go-through-all-training-data%2F3339 "2021-01-22T14:21:17Z")\
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**Author:** ![Skylixia](https://avatars.discourse-cdn.com/v4/letter/s/439d5e/32.png) [@Skylixia](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2FSkylixia)%5C
**Post date:** [January 22, 2021, 7:24pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Ftrainer-epoch-does-not-go-through-all-training-data%2F3339%2F5 "2021-01-22T19:24:33Z")

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My dataset seem to have the right size. Using Wandb logger it seems that there is only 1 step performed in each epoch indeed… I don’t know what could be wrong.  
My code is basically done as in [this post](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Ffine-tuning-pegasus%2F1433).

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