# Feeds updated, but new data won't display

**URL:** <https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206>\
**Category:** Emoncms\
**Created:** [24 July 2021 18:55 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206 "2021-07-24T18:55:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fonze](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/f/4491bb/32.png) [@fonze](https://community.openenergymonitor.org/u/fonze)\
**Post date:** [24 July 2021 18:55 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206/1 "2021-07-24T18:55:55Z")

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Hello,

Trying to migrate from [emoncms.org](http://emoncms.org) to a local install, I just installed emoncms on a raspberry pi.  
Imported emoncms . org data.  
Now :  
-Old data displays correctly on my emoncms installation  
-My measurement device correctly updates inputs (done with http requests and API key)  
I can see new values coming in the “inputs” tab  
-Feeds are also correctly updated. I can also see new values in “feeds” tab.

Problem is : when visualizing data, all new data (after migration) doesn’t display.  
I can only see old data (which were on emoncms . org). New data uploaded to my fresh emoncms installation won’t display. Neither in the “graphs” tab, nor in the “visualization” tab, not in “my solar” app. Only old data…

What am I doing wrong ?  
Thanks for any help !

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**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\
**Post date:** [24 July 2021 21:35 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206/2 "2021-07-24T21:35:36Z")

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Hello @fonze did you use an emonSD image to install emoncms on the raspberrypi or is it a custom install? How are you posting the new data?

It sounds like it may be file permissions related, do you see any errors in /var/log/apache2/error.log or /var/log/emoncms/emoncms.log?

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**Author:** ![fonze](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/f/4491bb/32.png) [@fonze](https://community.openenergymonitor.org/u/fonze)\
**Post date:** [25 July 2021 05:38 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206/3 "2021-07-25T05:38:23Z")

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Hello @TrystanLea !

Thanks for the quick reply.  
I’m using a custom emoncms install, as my raspberry pi has other tasks to do.  
New values are posted through an http request like :  
[http://myserver.org/emoncms/input/post.json?json={...ACP:200....}&apikey=](http://myserver.org/emoncms/input/post.json?json=%7B...ACP:200....%7D&apikey=)…&node=1  
I have 4 inputs in the json part, which generate 6 feeds.

You’re right, it seems a file permission problem. I can see errors in the logs every 10 min, which is my interval for posting new values.

For example, in /var/log/emoncms/emoncms.log :  
2021-07-25 05:20:04.559|WARN|PHPFina.php|post() could not open data file id=128823

In /var/log/apache2/error.log :  
[Sun Jul 25 07:20:04.551158 2021] [php7:warn] [pid 12517] [client …] PHP Warning: fopen(/var/opt/emoncms/phpfina/128820.dat): failed to open stream: Permission denied in /var/www

Which permission(s) on which files(s)/folder(s) should I set ?  
Thanks !

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<div class="post-metadata">

**Author:** ![TrystanLea](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/trystanlea/32/31_2.png) [@TrystanLea](https://community.openenergymonitor.org/u/TrystanLea)\
**Post date:** [25 July 2021 11:27 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206/4 "2021-07-25T11:27:20Z")

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Hello @fonze try:

```
sudo chown www-data:www-data -R /var/opt/emoncms/phpfina 
sudo chown www-data:www-data -R /var/opt/emoncms/phptimeseries
```

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**Author:** ![fonze](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/f/4491bb/32.png) [@fonze](https://community.openenergymonitor.org/u/fonze)\
**Post date:** [26 July 2021 13:03 UTC](https://community.openenergymonitor.org/t/feeds-updated-but-new-data-wont-display/18206/5 "2021-07-26T13:03:01Z")

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Hello @TrystanLea,

It solved my problem. It works now.  
Thank you very much !