Strange issue with graph

[zstas]

Hello.
Faced with a strange issue - for some hosts graphs are drawn with a problem (as in the screenshot below)
Recreating graphs did not help.

Device always responds on snmp. Nothing interesting in logs.

Cacti version is 0.8.7d.
Spine version is 0.8.8.

[paulgevers]

So, please try to explain what your problem is. I see nice graphs...

[zstas]

So, please try to explain what your problem is. I see nice graphs...

I've talking about spikes and holes in the graph. (sorry for bad english)

Same graph on the other side:

[paulgevers]

How fast (i.e. at what time intervals) are you polling? In the logging, is the interval regular? rrdtools inside makes the data always "equi distant" so if the polling is irregular, you might see this effect, I guess.

[zstas]

How fast (i.e. at what time intervals) are you polling? In the logging, is the interval regular? rrdtools inside makes the data always "equi distant" so if the polling is irregular, you might see this effect, I guess.

Every 60 seconds. From logs:

Code: Select all

11/06/2013 12:30:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670479225165872
11/06/2013 12:30:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088073009473800
11/06/2013 12:31:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670535641303205
11/06/2013 12:31:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088081653253050
11/06/2013 12:32:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670596218619762
11/06/2013 12:32:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088090495971918
11/06/2013 12:33:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670654595293060
11/06/2013 12:33:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088098520631837
11/06/2013 12:34:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670713597800224
11/06/2013 12:34:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088107038299611
11/06/2013 12:35:02 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670773676864507
11/06/2013 12:35:02 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088115278687772
11/06/2013 12:36:02 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670832791555487
11/06/2013 12:36:02 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088123497997259
11/06/2013 12:37:00 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670878112796903
11/06/2013 12:37:00 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088129561528127
11/06/2013 12:38:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6670952463151073
11/06/2013 12:38:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088139587627370
11/06/2013 12:39:03 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6671013895989621
11/06/2013 12:39:03 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088148148036586
11/06/2013 12:40:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_in,  oid: .1.3.6.1.2.1.31.1.1.1.6.250,  value: 6671072264446316
11/06/2013 12:40:01 PM - SPINE: Poller[0] Host[3] TH[1] DS[6876] SNMP: v2: X.X.X.X, dsname: traffic_out, oid: .1.3.6.1.2.1.31.1.1.1.10.250, value: 1088155909176003

[zstas]

any ideas?