Hello: This is actually documented in both the release notes and the FAQs in our Wiki:
http://sourceforge.net/apps/trac/ganglia/wiki Please let us know if anything is unclear. Thanks, Bernard On Wed, Nov 17, 2010 at 1:14 PM, Louis Coilliot <[email protected]> wrote: > Hello, this behaviour is reported from time to time with unicast :) > > Use: > send_metadata_interval = 600 > > (600, for example) > > on the gmond.conf for your nodes. > > The metrics should get back after a while. > > Louis > > 2010/11/17 Auld, Russell G CSC <[email protected]>: >> I'm running ganglia 3.1.7 on some RHEL computers. >> I have four separate clusters configured, with each one running in >> unicast mode. Each cluster uses a different port number in their >> gmond.conf files. >> >> Here's one example: >> >> udp_send_channel { >> #bind_hostname = yes # Highly recommended, soon to be default. >> # This option tells gmond to use a source address >> # that resolves to the machine's hostname. >> Without >> # this, the metrics may appear to come from any >> # interface and the DNS names associated with >> # those IPs will be used to create the RRDs. >> host = 192.168.115.100 # the gmond "collector" for this cluster >> port = 8655 >> ttl = 1 >> } >> >> /* You can specify as many udp_recv_channels as you like as well. */ >> udp_recv_channel { >> port = 8655 >> } >> >> /* You can specify as many tcp_accept_channels as you like to share >> an xml description of the state of the cluster */ >> tcp_accept_channel { >> port = 8655 >> } >> >> The above configuration is installed on each node in the cluster, >> including the "collector" node. The collector node is identified in the >> gmetad.conf file as a data source. >> >> The problem I'm having is that if the "collector" node's gmond is >> restarted for whatever reason, no metrics are reported anymore for the >> cluster. The front-end still shows the correct number of hosts, and they >> all appear "up", but there just isn't any data flowing. If I restart >> gmond on all the nodes in the cluster, things will all work again. >> Is this a bug? Or is there something wrong with the configuration above? >> >> If I telnet to one of the nodes in the cluster using the specified port, >> I get output, but there's no data in it as shown below. If I use the web >> page to show the host report for the node, it reports that it's up, and >> that it last reported 15 seconds ago (or less), but there are no metrics >> shown on the page. >> >> >> [h...@derp] ~ 133> telnet 192.168.115.164 8655 >> Trying 192.168.115.164... >> Connected to 192.168.115.164. >> Escape character is '^]'. >> <?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?> >> <!DOCTYPE GANGLIA_XML [ >> <!ELEMENT GANGLIA_XML (GRID|CLUSTER|HOST)*> >> <!ATTLIST GANGLIA_XML VERSION CDATA #REQUIRED> >> <!ATTLIST GANGLIA_XML SOURCE CDATA #REQUIRED> >> <!ELEMENT GRID (CLUSTER | GRID | HOSTS | METRICS)*> >> <!ATTLIST GRID NAME CDATA #REQUIRED> >> <!ATTLIST GRID AUTHORITY CDATA #REQUIRED> >> <!ATTLIST GRID LOCALTIME CDATA #IMPLIED> >> <!ELEMENT CLUSTER (HOST | HOSTS | METRICS)*> >> <!ATTLIST CLUSTER NAME CDATA #REQUIRED> >> <!ATTLIST CLUSTER OWNER CDATA #IMPLIED> >> <!ATTLIST CLUSTER LATLONG CDATA #IMPLIED> >> <!ATTLIST CLUSTER URL CDATA #IMPLIED> >> <!ATTLIST CLUSTER LOCALTIME CDATA #REQUIRED> >> <!ELEMENT HOST (METRIC)*> >> <!ATTLIST HOST NAME CDATA #REQUIRED> >> <!ATTLIST HOST IP CDATA #REQUIRED> >> <!ATTLIST HOST LOCATION CDATA #IMPLIED> >> <!ATTLIST HOST REPORTED CDATA #REQUIRED> >> <!ATTLIST HOST TN CDATA #IMPLIED> >> <!ATTLIST HOST TMAX CDATA #IMPLIED> >> <!ATTLIST HOST DMAX CDATA #IMPLIED> >> <!ATTLIST HOST GMOND_STARTED CDATA #IMPLIED> >> <!ELEMENT METRIC (EXTRA_DATA*)> >> <!ATTLIST METRIC NAME CDATA #REQUIRED> >> <!ATTLIST METRIC VAL CDATA #REQUIRED> >> <!ATTLIST METRIC TYPE (string | int8 | uint8 | int16 | uint16 | >> int32 | uint32 | float | double | timestamp) #REQUIRED> >> <!ATTLIST METRIC UNITS CDATA #IMPLIED> >> <!ATTLIST METRIC TN CDATA #IMPLIED> >> <!ATTLIST METRIC TMAX CDATA #IMPLIED> >> <!ATTLIST METRIC DMAX CDATA #IMPLIED> >> <!ATTLIST METRIC SLOPE (zero | positive | negative | both | >> unspecified) #IMPLIED> >> <!ATTLIST METRIC SOURCE (gmond) 'gmond'> >> <!ELEMENT EXTRA_DATA (EXTRA_ELEMENT*)> >> <!ELEMENT EXTRA_ELEMENT EMPTY> >> <!ATTLIST EXTRA_ELEMENT NAME CDATA #REQUIRED> >> <!ATTLIST EXTRA_ELEMENT VAL CDATA #REQUIRED> >> <!ELEMENT HOSTS EMPTY> >> <!ATTLIST HOSTS UP CDATA #REQUIRED> >> <!ATTLIST HOSTS DOWN CDATA #REQUIRED> >> <!ATTLIST HOSTS SOURCE (gmond | gmetad) #REQUIRED> >> <!ELEMENT METRICS (EXTRA_DATA*)> >> <!ATTLIST METRICS NAME CDATA #REQUIRED> >> <!ATTLIST METRICS SUM CDATA #REQUIRED> >> <!ATTLIST METRICS NUM CDATA #REQUIRED> >> <!ATTLIST METRICS TYPE (string | int8 | uint8 | int16 | uint16 | >> int32 | uint32 | float | double | timestamp) #REQUIRED> >> <!ATTLIST METRICS UNITS CDATA #IMPLIED> >> <!ATTLIST METRICS SLOPE (zero | positive | negative | both | >> unspecified) #IMPLIED> >> <!ATTLIST METRICS SOURCE (gmond) 'gmond'> >> ]> >> <GANGLIA_XML VERSION="3.1.7" SOURCE="gmond"> >> <CLUSTER NAME="DERP" LOCALTIME="1290018259" OWNER="HERP" >> LATLONG="unspecified" URL="unspecified"> >> </CLUSTER> >> </GANGLIA_XML> >> Connection closed by foreign host. >> >> >> >> ------------------------------------------------------------------------------ >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. Be a part of the beta today >> http://p.sf.net/sfu/msIE9-sfdev2dev >> _______________________________________________ >> Ganglia-general mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/ganglia-general >> > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today > http://p.sf.net/sfu/msIE9-sfdev2dev > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general > ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
