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[Bug] 4-byte UTF8 not supported when using MySQL database #7958

DanCech opened this Issue Mar 27, 2017 · 0 comments


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DanCech commented Mar 27, 2017

Please include this information:

  • What Grafana version are you using? 4.2.0
  • What datasource are you using? Graphite
  • What OS are you running grafana on? Linux w/ MySQL
  • What did you do? Tried to save a dashboard containing a 4-byte character
  • What was the expected result? It should be saved correctly
  • What happened instead? I received the error "Dashboard not found"

The MySQL connection & database use the utf8 character set, which doesn't support 4-byte utf8 characters. To support these characters with MySQL Grafana needs to use the utf8mb4 character set for the database connection and table columns. The set of 4-byte utf8 characters includes all unicode characters from U+10000 to U+10FFFF, including the block for emoji.

To solve this problem will require updating the connection settings, and writing a migration script to update the table definitions.

@DanCech DanCech self-assigned this Mar 27, 2017

@DanCech DanCech changed the title from 4-byte UTF8 not supported when using MySQL database to [Bug] 4-byte UTF8 not supported when using MySQL database Mar 27, 2017

@torkelo torkelo added this to the 4.3.0 milestone Mar 28, 2017

@torkelo torkelo closed this Apr 10, 2017

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