# Error 500 -	ScheduledRandomAccessReader.bufferMiss

**URL:** https://community.wowza.com/t/error-500-scheduledrandomaccessreader-buffermiss/42587
**Category:** Wowza Streaming Engine
**Created:** [October 4, 2014, 8:54pm UTC](https://community.wowza.com/t/error-500-scheduledrandomaccessreader-buffermiss/42587 "2014-10-04T20:54:17Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Antoni\_Bertran](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@Antoni\_Bertran](https://community.wowza.com/u/Antoni_Bertran)
#### Post date: [October 4, 2014, 8:54pm UTC](https://community.wowza.com/t/error-500-scheduledrandomaccessreader-buffermiss/42587/1 "2014-10-04T20:54:17Z")

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Hello we are using vods3 application with s3

and we get some error 500

ERROR 500 - ScheduledRandomAccessReader.bufferMiss[amazons3/files/wowza/video.mp4]

and the file exists in s3 and has access to it

Any idea? Could be the file format? is a Video: h264 and Audio: aac

Thanks!

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### Author: ![Antoni\_Bertran](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@Antoni\_Bertran](https://community.wowza.com/u/Antoni_Bertran)
#### Post date: [October 6, 2014, 7:55am UTC](https://community.wowza.com/t/error-500-scheduledrandomaccessreader-buffermiss/42587/2 "2014-10-06T07:55:32Z")

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The issue is related with MediaCache, we had set the storage to 10Gb and we had only 4 GB avalialble. Then the MediaCache has invalid entries. Now we restart server and set the cache storage to 3Gb.

Could be that?

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### Author: ![Takumi\_Nakada](https://avatars.discourse-cdn.com/v4/letter/t/ec9cab/32.png) [@Takumi\_Nakada](https://community.wowza.com/u/Takumi_Nakada)
#### Post date: [September 19, 2017, 7:47am UTC](https://community.wowza.com/t/error-500-scheduledrandomaccessreader-buffermiss/42587/3 "2017-09-19T07:47:46Z")

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Same here.  
I assume this issue is not caused by “bufferMiss”

The “correct” error message may be the following.

- 
  - 
    - 
      - 
        - MediaCacheStoreItem.updateBlockMask[1] : java.io.IOException: No space left on device|at java.io.RandomAccessFile.writeBytes(Native Method)|at java.io.RandomAccessFile.write(RandomAccessFile.java:508)|at com.wowza.wms.mediacache.model.MediaCacheStoreItem.up ~~~~~~~

If you decreased MediaCache storage, “bufferMiss” itself has never been resolved, I think.

However I resolved the issue by Antoni Bertran’s answer. Thank you!