# Read size does not match

**URL:** <https://community.wowza.com/t/read-size-does-not-match/34405>\
**Category:** Wowza Streaming Engine\
**Created:** [October 5, 2016, 1:05pm UTC](https://community.wowza.com/t/read-size-does-not-match/34405 "2016-10-05T13:05:03Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Heinz\_Lechner](https://avatars.discourse-cdn.com/v4/letter/h/82dd89/32.png) [@Heinz\_Lechner](https://community.wowza.com/u/Heinz_Lechner)\
**Post date:** [October 5, 2016, 1:05pm UTC](https://community.wowza.com/t/read-size-does-not-match/34405/1 "2016-10-05T13:05:03Z")

</div>

Hi!

We have an MediaCache with Local SSD Discs

Sometimes there are lots of Warnings “Read size does not match” and some of the VOD File stop while playing (always at the same time)

When I restart die Wowza Streaming Engine the Warnings do not Show up in the Logfile.

What can I do to overcome this?

Regards

Robert

---

<div class="post-metadata">

**Author:** ![Jermaine\_Hemby](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@Jermaine\_Hemby](https://community.wowza.com/u/Jermaine_Hemby)\
**Post date:** [November 9, 2016, 4:37am UTC](https://community.wowza.com/t/read-size-does-not-match/34405/2 "2016-11-09T04:37:02Z")

</div>

Hello,

Thanks for contacting Wowza Forums!

Can you confirmed you reviewed this article about MediaCache: [MediaCache](https://www.wowza.com/docs/how-to-scale-video-on-demand-streaming-with-media-cache)

Make sure to look at the **Add a File source** section.

Here is an article on optimizing data reading from disc [HERE](https://www.wowza.com/docs/how-to-implement-a-custom-randomaccessreadoptimizer-class)

Regards,

Jermaine

---

<div class="post-metadata">

**Author:** ![2c3d5ff9ad0b05481029](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/2c3d5ff9ad0b05481029/32/1314_2.png) [@2c3d5ff9ad0b05481029](https://community.wowza.com/u/2c3d5ff9ad0b05481029)\
**Post date:** [June 22, 2023, 1:23am UTC](https://community.wowza.com/t/read-size-does-not-match/34405/3 "2023-06-22T01:23:01Z")

</div>

I was using http source and I ended up mounting the storage server via NFS instead. This resolved my issue with this “Read size does not match” warning.