Health Monitor not updating: Input string was not in a correct format

Created:

2017-03-16 05:00:00 UTC

Modified:

2017-08-18 15:09:16 UTC

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Health Monitor not updating: Input string was not in a correct format

Applicable to:

  • Plesk for Windows

Note: This article has the reference to the issue with the fix available:

  • #PPP-28647 "On servers under high load, server health statistics sometimes became unavailable."
    Fixed in:
Please consider updating your server:

Symptoms

Health Monitor stops updating information about the server.

The following rows appear in the %plesk_dir% admin\logs\HealthMonitoring.log :

2017-03-28 01:48:01,623 [71] WARN  Parallels.Diagnostics.RRD.RrdStorageProvider [(null)] - <log4net.Error>Exception during StringFormat: Input string was not in a correct format. <format>Update to database {0} has failed [{2:HH:mm:ss:ffff}]. 
{1}</format><args>{service-MySql.rrd, Parallels.Diagnostics.RRD.RrdException: Failed to update RRD database "C:\Program Files (x86)\Parallels\Plesk\var\health\data\localhost\service-MySql.rrd":ERROR: C:\Program Files (x86)\Parallels\Plesk\var\health\data\localhost\service-MySql.rrd: illegal attempt to update using time 1490658367 when last update time is 1490658457 (minimum one second step), 00:00:00.0066916}</args></log4net.Error>2017-03-28 01:48:01,623
[81] INFO  Parallels.Diagnostics.RRD.RrdStorageProvider [(null)] - <log4net.Error>Exception during StringFormat: Input string was not in a correct format. <format>Update to database {0} has been timed out [ {1:HH:mm:ss:ffff} ], canceling ...</format><args> {service-Panel.rrd, 00:00:00.0058480} </args></log4net.Error>

Cause

This is Plesk bug with ID #PPP-28647 that was fixed in Plesk Onyx 17.8 Preview 1 .

Resolution

There is no workaround available at the moment.

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