# Wowza nDVR multiple origins / edge

**URL:** <https://community.wowza.com/t/wowza-ndvr-multiple-origins-edge/48657>\
**Category:** Wowza Streaming Engine\
**Created:** [May 4, 2017, 6:44am UTC](https://community.wowza.com/t/wowza-ndvr-multiple-origins-edge/48657 "2017-05-04T06:44:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ivan\_Simeonov](https://avatars.discourse-cdn.com/v4/letter/i/67e7ee/32.png) [@Ivan\_Simeonov](https://community.wowza.com/u/Ivan_Simeonov)\
**Post date:** [May 4, 2017, 6:44am UTC](https://community.wowza.com/t/wowza-ndvr-multiple-origins-edge/48657/1 "2017-05-04T06:44:02Z")

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Hi,

when edge server have primary and backup origins, when the primary origin fails, the nDVR streams becomes unwatchable. The stream in interrupted every few seconds. I assume, that on every chunk, the primary origin is first queried, and this is the problem. This kind of messages appears in the log:

ERRORservercomment2017-05-0316:32:38-----72.066--------DvrStreamStoreBase.retrieveChunkFromRepeater[liveedge/_definst_/ch1.stream/ch1.stream.0] : e:HTTPDvrRawChunkReader.open: Invalid HTTP length[-1]: [http://192.168.1.22:12346/liveorigin/](http://192.168.1.22:12346/liveorigin/)_definst_/ch1.stream.0/ChunkTypes(9)/ChunkIndexes(65084).dvr

Is this a normal behavior, nDVR to not support multiple origins ?

P.S. If You try to watch the stream without nDVR ( without ?DVR ), the stream is OK.

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**Author:** ![Alex\_C](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Alex\_C](https://community.wowza.com/u/Alex_C)\
**Post date:** [May 14, 2017, 9:59am UTC](https://community.wowza.com/t/wowza-ndvr-multiple-origins-edge/48657/2 "2017-05-14T09:59:45Z")

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Hi Ivan,

We have reported this to our engineers, and a backlog has been created regarding using DVR with Origin failover. At this time it is not going to work.

Regards,

Alex