Services configuration related to the issue
/etc/openhab2/services/rrd4j.cfg
# please note that currently the first archive in each RRD defines the consolidation
# function (e.g. AVERAGE) used by OpenHAB, thus only one consolidation function is
# fully supported
#
# default_numeric and default_other are internally defined defnames and are used as
# defaults when no other defname applies
#<defname>.def=[ABSOLUTE|COUNTER|DERIVE|GAUGE],<heartbeat>,[<min>|U],[<max>|U],<step>
#<defname>.archives=[AVERAGE|MIN|MAX|LAST|FIRST|TOTAL],<xff>,<steps>,<rows>
#<defname>.items=<list of items for this defname>
/etc/openhab2/persistence/rrd4j.persist:
// persistence strategies have a name and a definition and are referred to in the "Items" section
Strategies {
// for rrd charts, we need a cron strategy
everyMinute : "0 * * * * ?"
}
Items {
//* : strategy = everyChange, everyMinute, restoreOnStartup
// let's only store temperature values in rrd
//gTemperature*, gTemperature_Chart* : strategy = everyMinute, restoreOnStartup
* : strategy = everyMinute, restoreOnStartup
}
// vim: syntax=Xtend
If logs where generated please post these here using code fences:
{"error":{"message":"HTTP 404 Not Found","http-code":404,"exception":{"class":"javax.ws.rs.NotFoundException","message":"HTTP 404 Not Found","localized-message":"HTTP 404 Not Found"}}}
Any idea, why this exception occurs? Maybe some basic feature I have to activate in order to use charts?
Try restarting OH, in my case this problem was caused by the change to DST and has been solved by restarting (at least for the REST calls and showeing charts on the sitemap,it did not solve the problem on HABPanel. I made a post for that already).
HTTP ERROR 500
Problem accessing /rrdchart.png. Reason:
Server Error
Caused by:
java.lang.ArrayIndexOutOfBoundsException: 0
at sun.font.CompositeFont.getSlotFont(CompositeFont.java:351)
at sun.font.CompositeGlyphMapper.initMapper(CompositeGlyphMapper.java:81)
at sun.font.CompositeGlyphMapper.<init>(CompositeGlyphMapper.java:62)
at sun.font.CompositeFont.getMapper(CompositeFont.java:409)
at sun.font.StandardGlyphVector.init(StandardGlyphVector.java:1122)
at sun.font.StandardGlyphVector.<init>(StandardGlyphVector.java:172)
at java.awt.Font.getStringBounds(Font.java:2421)
at java.awt.Font.getStringBounds(Font.java:2331)
at java.awt.Font.getStringBounds(Font.java:2365)
at org.rrd4j.graph.ImageWorker.getStringWidth(Unknown Source)
at org.rrd4j.graph.RrdGraph.getSmallFontCharWidth(Unknown Source)
at org.rrd4j.graph.RrdGraph.initializeLimits(Unknown Source)
at org.rrd4j.graph.RrdGraph.createGraph(Unknown Source)
at org.rrd4j.graph.RrdGraph.<init>(Unknown Source)
at org.openhab.persistence.rrd4j.internal.charts.RRD4jChartServlet.createChart(RRD4jChartServlet.java:300)
at org.openhab.persistence.rrd4j.internal.charts.RRD4jChartServlet.service(RRD4jChartServlet.java:157)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:748)
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
As far as I remember, I think I read somewhere that oracle java should work a little faster then openjdk and zulu. However oracle java won’t be a problem I guess.
