Hi,
I have set up ganglia for my cluster, and it works fine. What are
the changes I need to make to make ganglia show hadoop related parameters?
My gmond/gmetad config is default except for one change in gmond.conf for
all nodes:
/* 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 = 8650
}
I have changed the hadoop-metrics.properties file as follows:
# Configuration of the "dfs" context for ganglia
dfs.class=org.apache.hadoop.metrics.ganglia.GangliaContext
dfs.period=10
dfs.servers=hadoop1:8649 hadoop2:8649 hadoop3:8649 ejabber:8649
# Configuration of the "mapred" context for null
#mapred.class=org.apache.hadoop.metrics.spi.NullContext
# Configuration of the "mapred" context for file
#mapred.class=org.apache.hadoop.metrics.file.FileContext
#mapred.period=10
#mapred.fileName=/tmp/mrmetrics.log
# Configuration of the "mapred" context for ganglia
mapred.class=org.apache.hadoop.metrics.ganglia.GangliaContext
mapred.period=10
mapred.servers=hadoop1:8649 hadoop2:8649 hadoop3:8649 ejabber:8649
# Configuration of the "jvm" context for null
#jvm.class=org.apache.hadoop.metrics.spi.NullContext
# Configuration of the "jvm" context for file
#jvm.class=org.apache.hadoop.metrics.file.FileContext
#jvm.period=10
#jvm.fileName=/tmp/jvmmetrics.log
# Configuration of the "jvm" context for ganglia
jvm.class=org.apache.hadoop.metrics.ganglia.GangliaContext
jvm.period=10
jvm.servers=hadoop1:8649 hadoop2:8649 hadoop3:8649 ejabber:8649
rpc.class=org.apache.hadoop.metrics.ganglia.GangliaContext
rpc.period=10
rpc.servers=hadoop1:8649 hadoop2:8649 hadoop3:8649 ejabber:8649
hadoop1,2,3 and ejabber are my nodes.
But I am unable to see any new metrics in ganglia's drop down menu. Is there
something else I need to do as well? I have restarted gmond on all nodes.
thanks,
Hari
