High CPU load on rrdcached (OMV 2.0)

see rrdtool.org

Checking the syslog on my RPi1 OMV install, it seems that collectd and rrdcached kick off before the system time is properly set, and may be getting very confused. about every 10 seconds the following sequence of entries are in the syslog.

Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/interface-eth0/if_packets.rrd, [1461447311:12888796:1307540], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/interface-eth0/if_errors.rrd, [1461447311:0:0], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/queue_length.rrd, [1461447311:0.000000], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/df-media-fa36508a-b3c4-4499-b30a-711dd5994225/df_complex-reserved.rrd, [1461447311:232683520.000000], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/operations-receive-update.rrd, [1461447311:190443], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/operations-receive-flush.rrd, [1461447311:6770], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/operations-write-updates.rrd, [1461447311:562], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/operations-write-data_sets.rrd, [1461447311:22255], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/gauge-tree_nodes.rrd, [1461447311:34.000000], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/gauge-tree_depth.rrd, [1461447311:6.000000], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/counter-journal-bytes.rrd, [1461447311:17676748], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: rrdcached plugin: rrdc_update (/var/lib/rrdcached/db/localhost/rrdcached/counter-journal-rotates.rrd, [1461447311:16], 1) failed with status -1.Apr 23 16:35:11 raspberrypi collectd[11397]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.

On the RPi, cpu is 100%. And it will not reboot!

Does this match what is happening on your system?