#7 graph does not reflect all data point

[Anonymous]

My RRD was created using the following template:

<rrd_def>
<path>${path}</path>
<step>300</step>
<datasource>
<name>${datasourceName}</name>
<type>GAUGE</type>
<heartbeat>600</heartbeat>
<min>U</min>
<max>U</max>
</datasource>
<archive>
<cf>LAST</cf>
<xff>0.5</xff>
<steps>1</steps>
<rows>105120</rows>
</archive>
<archive>
<cf>AVERAGE</cf>
<xff>0.5</xff>
<steps>12</steps>
<rows>8760</rows>
</archive>
<archive>
<cf>AVERAGE</cf>
<xff>0.5</xff>
<steps>288</steps>
<rows>366</rows>
</archive>
<archive>
<cf>AVERAGE</cf>
<xff>0.5</xff>
<steps>8928</steps>
<rows>12</rows>
</archive>
<archive>
<cf>MAX</cf>
<xff>0.5</xff>
<steps>1</steps>
<rows>288</rows>
</archive>
<archive>
<cf>MAX</cf>
<xff>0.5</xff>
<steps>288</steps>
<rows>366</rows>
</archive>
</rrd_def>
]]>
</rrd_template>

The database is popuated with 7 days worth of data. When I create a graph for the last 5 days the graph created is correct. When I create a graph starting 8 days ago, which includes NaN data the graph contains a spike for the first day in which data exists and nothing is plotted for the remainder of the days in which good data is available. Is this a configuration error?

The following method is called to create the graph.

public static void createGraphStartingAt(String fullyQualifiedRrdFileName, String fullyQualifiedGraphFileName,
Map<String, String> attributes, long startingAt) throws Exception
{
RrdDb rrdDb = new RrdDb(fullyQualifiedRrdFileName, true);

RrdGraphDef rrdGraphDef = new RrdGraphDef\(\);

Color color = new Color\(0x84, 0x93, 0x21\);

String legend = "";
String verticalLabel = "";
String consolidationFunction = DEFAULT\_CONSOLIDATION;

String title = attributes.get\(TITLE\_ATTRIBUTE\);

if\(attributes.containsKey\(CONSOLIDATION\_FUNCTION\)\)
    consolidationFunction = attributes.get\(CONSOLIDATION\_FUNCTION\);

if\(attributes.containsKey\(LEGEND\_ATTRIBUTE\)\)
    legend = attributes.get\(LEGEND\_ATTRIBUTE\);

if\(attributes.containsKey\(VERTICAL\_LABEL\_ATTRIBUTE\)\)
    verticalLabel = attributes.get\(VERTICAL\_LABEL\_ATTRIBUTE\);

if\(attributes.containsKey\(COLOR\_ATTRIBUTE\)\)
    color = KinetoColor.getColor\(attributes.get\(COLOR\_ATTRIBUTE\)\);

int datasourceIndex = 0;
int archiveIndex = 0;

if\(attributes.containsKey\(ARCHIVE\_INDEX\)\)
    archiveIndex = Integer.parseInt\(attributes.get\(ARCHIVE\_INDEX\)\);


Datasource ds = rrdDb.getDatasource\(datasourceIndex\);
String datasourceName = ds.getDsName\(\);

Archive arc = rrdDb.getArchive\(archiveIndex\);

long startTime = arc.getStartTime\(\);
long endTime = arc.getEndTime\(\);
long rraStep = arc.getArcStep\(\);

rrdDb.close\(\);

if\(startingAt == -1\)  
    startingAt = startTime;

logger.info\("rrd startTime=" + startTime + " endTime=" + endTime + " graph startTime=" + startingAt\);

if\(legend.length\(\) == 0\)
    \{
    rrdGraphDef.setNoLegend\(true\);
    \}

rrdGraphDef.setFilename\(fullyQualifiedGraphFileName\);

if\(verticalLabel.length\(\) > 0\)
\{
    rrdGraphDef.setVerticalLabel\(verticalLabel\);

\}

String minValue = attributes.get\("minValue"\);
String maxValue = attributes.get\("maxValue"\);

if\(minValue \!= null\)
\{
    rrdGraphDef.setMinValue\(Double.parseDouble\(minValue\)\);
    rrdGraphDef.setRigid\(true\);

\}

if\(maxValue \!= null\)
\{
    rrdGraphDef.setMaxValue\(Double.parseDouble\(maxValue\)\);
    rrdGraphDef.setRigid\(true\);
\}


rrdGraphDef.datasource\(datasourceName, fullyQualifiedRrdFileName, 
        datasourceName, consolidationFunction\);


rrdGraphDef.line\(datasourceName, color, legend + "\\\l"\);
rrdGraphDef.setHeight\(200\);
rrdGraphDef.setWidth\(400\);
rrdGraphDef.setShowSignature\(false\);
rrdGraphDef.setUnitsExponent\(0\);
rrdGraphDef.setStep\(rraStep\);
rrdGraphDef.setImageFormat\(PNG\);
rrdGraphDef.setColor\(RrdGraphConstants.COLOR\_ARROW, new Color\(0x84, 0x93, 0x21\)\);

long timeNow = Calendar.getInstance\(\).getTimeInMillis\(\) / 1000;

rrdGraphDef.setTimeSpan\(startingAt, timeNow\);


rrdGraphDef.setTitle\(String.format\("%s - %s", title, DateAndTime.date\_now\(\)\)\);

@SuppressWarnings\("unused"\)
RrdGraph rrdGraph = new RrdGraph\(rrdGraphDef\);

}

The default CF is "LAST" and the archive index is 0.