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Bug #13936

open

PHP error from RRD Graphs when attempting a query a newly created empty database

Added by Jim Pingle about 2 months ago. Updated 1 day ago.

Status:
Confirmed
Priority:
Normal
Assignee:
-
Category:
Status_Monitoring
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Affected Version:
Affected Plus Version:
Affected Architecture:

Description

Attempting to view an RRD graph of a new database that doesn't yet have data results in a PHP error.

Easiest way to make it happen is to reset RRD and then attempt to load a traffic graph for an interface (e.g. WAN) before the script has a chance to run and populate data:

PHP ERROR: Type: 1, File: /usr/local/www/rrd_fetch_json.php, Line: 430, Message: Uncaught ValueError: min(): Argument #1 ($value) must contain at least one element in /usr/local/www/rrd_fetch_json.php:430
Stack trace:
#0 /usr/local/www/rrd_fetch_json.php(430): min(Array)
#1 {main}

Once the RRD file has data, it's fine.

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 #1

Updated by Jim Pingle about 2 months ago

  • Description updated (diff)
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 #2

Updated by Danilo Zrenjanin about 1 month ago

  • Status changed from New to Confirmed

I replicated the issue.

23.01-RC (amd64)
built on Wed Feb 08 14:19:05 UTC 2023
FreeBSD 14.0-CURRENT

The error message is the same.

PHP errors
PHP ERROR: Type: 1, File: /usr/local/www/rrd_fetch_json.php, Line: 430, Message: Uncaught ValueError: min(): Argument #1 ($value) must contain at least one element in /usr/local/www/rrd_fetch_json.php:430
Stack trace:
#0 /usr/local/www/rrd_fetch_json.php(430): min(Array)
#1 {main}
thrown @ 2023-02-09 11:14:21
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 #3

Updated by Lev Prokofev 1 day ago

Can replicate on

23.01-RELEASE (amd64)
built on Fri Feb 10 20:06:33 UTC 2023
FreeBSD 14.0-CURRENT

@PHP ERROR: Type: 1, File: /usr/local/www/rrd_fetch_json.php, Line: 431, Message: Uncaught ValueError: min(): Argument #1 ($value) must contain at least one element in /usr/local/www/rrd_fetch_json.php:431
Stack trace:
#0 /usr/local/www/rrd_fetch_json.php(431): min(Array)
#1 {main}
  thrown@

Is there any workaround?

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