|Title||Fixed potential monitoring core crash when rrdcached is down|
|Checkmk Edition||Checkmk Raw Edition (CRE)|
|Compatibility||Compatible - no manual interaction needed|
The rrdtool library used by the Nagios Event Broker and the Micro Core has a subtle bug, which could lead to undefined behavior when the rrdcached is down or replies with an error. Symptoms are funny log messages or monitoring core crashes when graphs are viewed in the GUI. This has been fixed.